Merge pull request #22 from ccrook/master

Adding NZGD2000 deformation model (versions 2000-01-01 to 2018-07-01)

49 files changed, 4387 insertions, 32 deletions

diff --git a/copyright_and_licenses.csv b/copyright_and_licenses.csv
index 143d4dc..dfbf512 100644
--- a/copyright_and_licenses.csv
+++ b/copyright_and_licenses.csv
@@ -156,6 +156,48 @@ nz_linz_lyttht1937-nzvd2016.tif,Land Information New Zealand,CC-BY-4.0
 nz_linz_motuht1953-nzvd2016.tif,Land Information New Zealand,CC-BY-4.0
 nz_linz_napiht1962-nzvd2016.tif,Land Information New Zealand,CC-BY-4.0
 nz_linz_nelsht1955-nzvd2016.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20000101.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20130801.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20140201.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20150101.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20160701.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20171201.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-20180701.json,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-c120100904-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-c220110222-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-c320110613-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-c420111223-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ch20160214-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-cs20130721-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-cs20130721-grid02.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ds20090715-grid011.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ds20090715-grid012.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ds20090715-grid013.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ds20090715-grid014.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-gs20071016-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid02.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid03.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid04.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid05.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid06.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid07.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid08.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid09.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid10.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid11.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ka20161114-grid12.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-lg20130816-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-lg20130816-grid02.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-mq20041223-grid011.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-mq20041223-grid012.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-mq20041223-grid013.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-mq20041223-grid014.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-mq20041223-grid015.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-mq20041223-grid016.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ndm-grid01.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-ndm-grid02.tif,Land Information New Zealand,CC-BY-4.0
+nz_linz_nzgd2000-si20030821-grid01.tif,Land Information New Zealand,CC-BY-4.0
 nz_linz_nzgd2kgrid0005.tif,Land Information New Zealand,CC-BY-4.0
 nz_linz_nzgeoid2009.tif,Land Information New Zealand,CC-BY-4.0
 nz_linz_nzgeoid2016.tif,Land Information New Zealand,CC-BY-4.0
diff --git a/files.geojson b/files.geojson
index c4b4a5c..2fb0621 100644
--- a/files.geojson
+++ b/files.geojson
@@ -150,7 +150,7 @@
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nl_nsgi_nlgeo2018.tif", "name": "nl_nsgi_nlgeo2018.tif", "area_of_use": "Netherlands", "type": "VERTICAL_OFFSET_GEOGRAPHIC_TO_VERTICAL", "source_crs_code": "EPSG:4937", "source_crs_name": "ETRS89", "target_crs_code": "EPSG:5709", "target_crs_name": "NAP height", "source": "Nederlandse Samenwerking Geodetische Infrastructuur (NSGI)", "source_country": "Netherlands", "source_id": "nl_nsgi", "source_url": "https:\/\/www.nsgi.nl\/", "description": "ETRS89 (EPSG:4937) to NAP height (EPSG:5709)", "file_size": 248989, "sha256sum": "f0df3db70f6e969f2293e38cd75c8b13b0ae01f1259e870c6ef24c81e4ada9ac" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 2.0, 50.0 ], [ 8.0, 50.0 ], [ 8.0, 56.0 ], [ 2.0, 56.0 ], [ 2.0, 50.0 ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nl_nsgi_rdcorr2018.tif", "name": "nl_nsgi_rdcorr2018.tif", "area_of_use": "Netherlands", "type": "HORIZONTAL_OFFSET", "source_crs_code": "EPSG:4289", "source_crs_name": "Amersfoort", "target_crs_code": "EPSG:4258", "target_crs_name": "ETRS89", "source": "Nederlandse Samenwerking Geodetische Infrastructuur (NSGI)", "source_country": "Netherlands", "source_id": "nl_nsgi", "source_url": "https:\/\/www.nsgi.nl\/", "description": "Amersfoort (EPSG:4289) to ETRS89 (EPSG:4258)", "file_size": 371083, "sha256sum": "3ca43903f998eb2a8fbabb646cf34961190b48510353d94c9a66d6fd981ac3b4" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 2.0, 50.0 ], [ 2.5, 50.0 ], [ 2.5, 50.0 ], [ 8.0, 50.0 ], [ 8.0, 54.0 ], [ 8.0, 56.0 ], [ 2.0, 56.0 ], [ 2.0, 50.0 ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nl_nsgi_rdtrans2018.tif", "name": "nl_nsgi_rdtrans2018.tif", "area_of_use": "Netherlands", "type": "HORIZONTAL_OFFSET", "source_crs_code": "EPSG:4289", "source_crs_name": "Amersfoort", "target_crs_code": "EPSG:4258", "target_crs_name": "ETRS89", "source": "Nederlandse Samenwerking Geodetische Infrastructuur (NSGI)", "source_country": "Netherlands", "source_id": "nl_nsgi", "source_url": "https:\/\/www.nsgi.nl\/", "description": "Amersfoort (EPSG:4289) to ETRS89 (EPSG:4258)", "file_size": 284843, "sha256sum": "089776649e0d98fadfdf4a4bfdce083859a25061816bac451829adf0ad296495" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 2.0, 50.0 ], [ 2.5, 50.0 ], [ 2.5, 50.0 ], [ 8.0, 50.0 ], [ 8.0, 54.0 ], [ 8.0, 56.0 ], [ 2.0, 56.0 ], [ 2.0, 50.0 ] ] ] } },
-{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_README.txt", "name": "nz_linz_README.txt", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "file_size": 5886, "sha256sum": "8dd8b2a3a6bad5d54f5d4abcc84ac9782676b92c45cbd83dc8ded2b9f6d8053c" }, "geometry": null },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_README.txt", "name": "nz_linz_README.txt", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "file_size": 6937, "sha256sum": "86f88fbfb9922d96788890a771f733c364d4132ef1f4efbf31792a3b77581f5b" }, "geometry": null },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_auckht1946-nzvd2016.tif", "name": "nz_linz_auckht1946-nzvd2016.tif", "area_of_use": "New Zealand - Auckland", "type": "VERTICAL_OFFSET_VERTICAL_TO_VERTICAL", "source_crs_code": "EPSG:7839", "source_crs_name": "NZVD2016 height", "target_crs_code": "EPSG:5759", "target_crs_name": "Auckland 1946 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZVD2016 height (EPSG:7839) to Auckland 1946 height (EPSG:5759)", "file_size": 8713, "sha256sum": "e6ec7c1f30f6ff65d106d31a98a68c02d59b7894ed969fa9896a4b1ad4b4d233" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 174.0, -38.0 ], [ 176.2, -38.0 ], [ 176.2, -36.1 ], [ 174.0, -36.1 ], [ 174.0, -38.0 ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_blufht1955-nzvd2016.tif", "name": "nz_linz_blufht1955-nzvd2016.tif", "area_of_use": "New Zealand - Bluff", "type": "VERTICAL_OFFSET_VERTICAL_TO_VERTICAL", "source_crs_code": "EPSG:7839", "source_crs_name": "NZVD2016 height", "target_crs_code": "EPSG:5760", "target_crs_name": "Bluff 1955 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZVD2016 height (EPSG:7839) to Bluff 1955 height (EPSG:5760)", "file_size": 1942, "sha256sum": "8f091e6d5e1ffceae5a711dba3b2e810e60ae21d25538ee4f16fbc654bf83ac5" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 168.2, -46.8 ], [ 168.9, -46.8 ], [ 168.9, -46.3 ], [ 168.2, -46.3 ], [ 168.2, -46.8 ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_dublht1960-nzvd2016.tif", "name": "nz_linz_dublht1960-nzvd2016.tif", "area_of_use": "New Zealand - Dunedin-Bluff", "type": "VERTICAL_OFFSET_VERTICAL_TO_VERTICAL", "source_crs_code": "EPSG:7839", "source_crs_name": "NZVD2016 height", "target_crs_code": "EPSG:4458", "target_crs_name": "Dunedin-Bluff 1960 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZVD2016 height (EPSG:7839) to Dunedin-Bluff 1960 height (EPSG:4458)", "file_size": 6423, "sha256sum": "095e8a82b1696e994bdd43c6aadfacc91ad58ec4401daa411529b5b4c4bfc2e4" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 167.4, -46.7 ], [ 169.9, -46.7 ], [ 169.9, -45.0 ], [ 167.4, -45.0 ], [ 167.4, -46.7 ] ] ] } },
@@ -160,6 +160,48 @@
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 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_napiht1962-nzvd2016.tif", "name": "nz_linz_napiht1962-nzvd2016.tif", "area_of_use": "New Zealand - Napier", "type": "VERTICAL_OFFSET_VERTICAL_TO_VERTICAL", "source_crs_code": "EPSG:7839", "source_crs_name": "NZVD2016 height", "target_crs_code": "EPSG:5765", "target_crs_name": "Napier 1962 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZVD2016 height (EPSG:7839) to Napier 1962 height (EPSG:5765)", "file_size": 6541, "sha256sum": "07698b02de627d5eddfc005bc1769cc0ba358c6fbdc385fa66bc43ecd48764ad" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 175.6, -40.6 ], [ 177.9, -40.6 ], [ 177.9, -38.6 ], [ 175.6, -38.6 ], [ 175.6, -40.6 ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nelsht1955-nzvd2016.tif", "name": "nz_linz_nelsht1955-nzvd2016.tif", "area_of_use": "New Zealand - Nelson", "type": "VERTICAL_OFFSET_VERTICAL_TO_VERTICAL", "source_crs_code": "EPSG:7839", "source_crs_name": "NZVD2016 height", "target_crs_code": "EPSG:5766", "target_crs_name": "Nelson 1955 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZVD2016 height (EPSG:7839) to Nelson 1955 height (EPSG:5766)", "file_size": 9079, "sha256sum": "a64092ab7cb39cbf2241cc323d4e08f79ea30810d2ac5a814b4d0f32c9433091" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 171.3, -42.7 ], [ 174.4, -42.7 ], [ 174.4, -40.4 ], [ 171.3, -40.4 ], [ 171.3, -42.7 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-20000101.json", "name": "nz_linz_nzgd2000-20000101.json", "type": "DEFORMATION_MODEL", "source_crs_code": "EPSG:4959", "source_crs_name": "NZGD2000", "target_crs_code": "EPSG:7907", "target_crs_name": "ITRF96", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n (version 20000101)", "file_size": 3022, "sha256sum": "158ec88c2e6a9e806cd96d3c5fe8032561879414dc8c2662355becc6fa8fdfb4" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 165.0, -48.0 ], [ 180.0, -48.0 ], [ 180.0, -32.0 ], [ 165.0, -32.0 ], [ 165.0, -48.0 ] ] ], [ [ [ -180.0, -32.0 ], [ -180.0, -48.0 ], [ -180.0, -48.0 ], [ -180.0, -32.0 ], [ -180.0, -32.0 ] ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-20130801.json", "name": "nz_linz_nzgd2000-20130801.json", "type": "DEFORMATION_MODEL", "source_crs_code": "EPSG:4959", "source_crs_name": "NZGD2000", "target_crs_code": "EPSG:7907", "target_crs_name": "ITRF96", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n (version 20130801)", "file_size": 15502, "sha256sum": "bceaa9cbcb03cb6a5a4f9f8745e8ba92582ab9a1f225ee776a4265f228059e51" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 158.0, -58.0 ], [ 180.0, -58.0 ], [ 180.0, -25.0 ], [ 158.0, -25.0 ], [ 158.0, -58.0 ] ] ], [ [ [ -180.0, -25.0 ], [ -180.0, -58.0 ], [ -166.0, -58.0 ], [ -166.0, -25.0 ], [ -180.0, -25.0 ] ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-20140201.json", "name": "nz_linz_nzgd2000-20140201.json", "type": "DEFORMATION_MODEL", "source_crs_code": "EPSG:4959", "source_crs_name": "NZGD2000", "target_crs_code": "EPSG:7907", "target_crs_name": "ITRF96", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n (version 20140201)", "file_size": 16913, "sha256sum": "6a8b17fce9d13ffdaa55b155361e5f029e64a20fbb5212179c3b132d24978499" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 158.0, -58.0 ], [ 180.0, -58.0 ], [ 180.0, -25.0 ], [ 158.0, -25.0 ], [ 158.0, -58.0 ] ] ], [ [ [ -180.0, -25.0 ], [ -180.0, -58.0 ], [ -166.0, -58.0 ], [ -166.0, -25.0 ], [ -180.0, -25.0 ] ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-20150101.json", "name": "nz_linz_nzgd2000-20150101.json", "type": "DEFORMATION_MODEL", "source_crs_code": "EPSG:4959", "source_crs_name": "NZGD2000", "target_crs_code": "EPSG:7907", "target_crs_name": "ITRF96", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n (version 20150101)", "file_size": 16913, "sha256sum": "891ed6623be3166c125bc214618dc1bc522bef0715900e3e16e5ae0336badf8d" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 158.0, -58.0 ], [ 180.0, -58.0 ], [ 180.0, -25.0 ], [ 158.0, -25.0 ], [ 158.0, -58.0 ] ] ], [ [ [ -180.0, -25.0 ], [ -180.0, -58.0 ], [ -166.0, -58.0 ], [ -166.0, -25.0 ], [ -180.0, -25.0 ] ] ] ] } },
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+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-lg20130816-grid02.tif", "name": "nz_linz_nzgd2000-lg20130816-grid02.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Mw 6.6 Lake Grassmere earthquake", "file_size": 185649, "sha256sum": "63bf9ca9ed4e092e4f8d7e58cd5c93ce8ee903e211cff045f216fa33e95245cc" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 170.95, -44.0 ], [ 176.65, -44.0 ], [ 176.65, -39.25 ], [ 170.95, -39.25 ], [ 170.95, -44.0 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-mq20041223-grid011.tif", "name": "nz_linz_nzgd2000-mq20041223-grid011.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Macquarie Plate earthquake", "file_size": 2133, "sha256sum": "e0217320c6a6c33e2a34031f1b0243186383fc4bb9b15779040ed69a07f262b2" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 168.4, -53.0 ], [ 169.75, -53.0 ], [ 169.75, -52.125 ], [ 168.4, -52.125 ], [ 168.4, -53.0 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-mq20041223-grid012.tif", "name": "nz_linz_nzgd2000-mq20041223-grid012.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Macquarie Plate earthquake", "file_size": 122804, "sha256sum": "2ec0ff4adbf449e2db6235dfc795e5451b57fde5d9e0959389c49002b78c945c" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 158.8, -52.5 ], [ 162.7, -52.5 ], [ 162.7, -48.25 ], [ 158.8, -48.25 ], [ 158.8, -52.5 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-mq20041223-grid013.tif", "name": "nz_linz_nzgd2000-mq20041223-grid013.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Macquarie Plate earthquake", "file_size": 2565, "sha256sum": "96a2b879bceab0e4e08229179d3f07e77933cb2f798de0162897c3a4492a8c19" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 165.4, -51.375 ], [ 166.9, -51.375 ], [ 166.9, -50.125 ], [ 165.4, -50.125 ], [ 165.4, -51.375 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-mq20041223-grid014.tif", "name": "nz_linz_nzgd2000-mq20041223-grid014.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Macquarie Plate earthquake", "file_size": 2083, "sha256sum": "37bbea54c8d7a8bdce7874a125a179ab10a7595a540a987f4b7e7ce53bce90f0" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 178.15, -50.125 ], [ 179.35, -50.125 ], [ 179.35, -49.25 ], [ 178.15, -49.25 ], [ 178.15, -50.125 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-mq20041223-grid015.tif", "name": "nz_linz_nzgd2000-mq20041223-grid015.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Macquarie Plate earthquake", "file_size": 28434, "sha256sum": "c29d0a8637547d4048a8f837249599888fb386610ab57c3a126b97d645967807" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 165.85, -48.5 ], [ 176.2, -48.5 ], [ 176.2, -40.125 ], [ 165.85, -40.125 ], [ 165.85, -48.5 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-mq20041223-grid016.tif", "name": "nz_linz_nzgd2000-mq20041223-grid016.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Macquarie Plate earthquake", "file_size": 1902, "sha256sum": "2894b33c82c168f8619b684d04ce33c03d7308f5991320838b8ddbe0c42e681b" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 178.45, -48.125 ], [ 179.5, -48.125 ], [ 179.5, -47.375 ], [ 178.45, -47.375 ], [ 178.45, -48.125 ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-ndm-grid01.tif", "name": "nz_linz_nzgd2000-ndm-grid01.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Secular deformation model derived from GNS model 1998b", "file_size": 42279, "sha256sum": "b37de803fa00c6f21100ecc3154a3f23b4fc47745ee6151f6c4121d3c0043df7" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 165.0, -48.0 ], [ 180.0, -48.0 ], [ 180.0, -32.0 ], [ 165.0, -32.0 ], [ 165.0, -48.0 ] ] ], [ [ [ -180.0, -32.0 ], [ -180.0, -48.0 ], [ -180.0, -48.0 ], [ -180.0, -32.0 ], [ -180.0, -32.0 ] ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-ndm-grid02.tif", "name": "nz_linz_nzgd2000-ndm-grid02.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Secular deformation model derived from NUVEL-1A rotation rates", "file_size": 96159, "sha256sum": "1472b55d07ccfa7b205c79e6a4f6fdac8a6e97a8be7ed06301f7ab4b8a9c972d" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 158.0, -58.0 ], [ 180.0, -58.0 ], [ 180.0, -25.0 ], [ 158.0, -25.0 ], [ 158.0, -58.0 ] ] ], [ [ [ -180.0, -25.0 ], [ -180.0, -58.0 ], [ -166.0, -58.0 ], [ -166.0, -25.0 ], [ -180.0, -25.0 ] ] ] ] } },
+{ "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2000-si20030821-grid01.tif", "name": "nz_linz_nzgd2000-si20030821-grid01.tif", "area_of_use": "NZGD2000 deformation model", "type": "DEFORMATION_MODEL", "source_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "Secretary Island (Fiordland) earthquake", "file_size": 100139, "sha256sum": "e4dd4cb4b8742c372b5ad54bec80291b36361b96a422cb617ed21f33c5db767a" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 165.85, -47.625 ], [ 172.3, -47.625 ], [ 172.3, -43.5 ], [ 165.85, -43.5 ], [ 165.85, -47.625 ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgd2kgrid0005.tif", "name": "nz_linz_nzgd2kgrid0005.tif", "area_of_use": "New Zealand", "type": "HORIZONTAL_OFFSET", "source_crs_code": "EPSG:4272", "source_crs_name": "NZGD49", "target_crs_code": "EPSG:4167", "target_crs_name": "NZGD2000", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZGD49 (EPSG:4272) to NZGD2000 (EPSG:4167)", "file_size": 197302, "sha256sum": "d4d9649bfbc55bbbeb7636fa26f300045123d97a3ab01dec3bf2982eae86cbb2" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 166.0, -48.0 ], [ 180.0, -48.0 ], [ 180.0, -34.0 ], [ 166.0, -34.0 ], [ 166.0, -48.0 ] ] ], [ [ [ -180.0, -34.0 ], [ -180.0, -48.0 ], [ -180.0, -48.0 ], [ -180.0, -34.0 ], [ -180.0, -34.0 ] ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgeoid2009.tif", "name": "nz_linz_nzgeoid2009.tif", "area_of_use": "New Zealand", "type": "VERTICAL_OFFSET_GEOGRAPHIC_TO_VERTICAL", "source_crs_code": "EPSG:4959", "source_crs_name": "NZGD2000", "target_crs_code": "EPSG:4440", "target_crs_name": "NZVD2009 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZGD2000 (EPSG:4959) to NZVD2009 height (EPSG:4440)", "file_size": 4307079, "sha256sum": "d3b60ad5ad1066a72bab43a29c8d50f55d750665bd8dc516511aef1f1cbc58d6" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 160.0, -60.0 ], [ 180.0, -60.0 ], [ 180.0, -25.0 ], [ 160.0, -25.0 ], [ 160.0, -60.0 ] ] ], [ [ [ -180.0, -25.0 ], [ -180.0, -60.0 ], [ -180.0, -60.0 ], [ -180.0, -25.0 ], [ -180.0, -25.0 ] ] ] ] } },
 { "type": "Feature", "properties": { "url": "https:\/\/cdn.proj.org\/nz_linz_nzgeoid2016.tif", "name": "nz_linz_nzgeoid2016.tif", "area_of_use": "New Zealand", "type": "VERTICAL_OFFSET_GEOGRAPHIC_TO_VERTICAL", "source_crs_code": "EPSG:4959", "source_crs_name": "NZGD2000", "target_crs_code": "EPSG:7839", "target_crs_name": "NZVD2016 height", "source": "Land Information New Zealand", "source_country": "New Zealand", "source_id": "nz_linz", "source_url": "https:\/\/www.linz.govt.nz\/", "description": "NZGD2000 (EPSG:4959) to NZVD2016 height (EPSG:7839)", "file_size": 5232082, "sha256sum": "b986261d778e30b52b7d9ae24280c704c280c13bb02e51f3dca65fa862d1f027" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 160.0, -60.0 ], [ 180.0, -60.0 ], [ 180.0, -25.0 ], [ 160.0, -25.0 ], [ 160.0, -60.0 ] ] ], [ [ [ -180.0, -25.0 ], [ -180.0, -60.0 ], [ -180.0, -60.0 ], [ -180.0, -25.0 ], [ -180.0, -25.0 ] ] ] ] } },
diff --git a/index.html b/index.html
index 983981b..40579b5 100644
--- a/index.html
+++ b/index.html
@@ -173,6 +173,7 @@ types_enabled['horizontal'] = true;
 types_enabled['geoid'] = true;
 types_enabled['vertical_adjustments'] = true;
 types_enabled['velocity'] = true;
+types_enabled['deformation_model'] = true;
 types_enabled['other'] = true;
 function refresh_source() {
     featureSource.clear();
@@ -196,11 +197,16 @@ function refresh_source() {
                 feature.properties.type == 'VELOCITY') {
                 ok_type = true;
             }
+            if( types_enabled['deformation_model'] &&
+                feature.properties.type == 'DEFORMATION_MODEL') {
+                ok_type = true;
+            }
             if( types_enabled['other'] &&
-            feature.properties.type != 'HORIZONTAL_OFFSET' &&
+                feature.properties.type != 'HORIZONTAL_OFFSET' &&
                 feature.properties.type != 'VERTICAL_OFFSET_GEOGRAPHIC_TO_VERTICAL' &&
                 feature.properties.type != 'VERTICAL_OFFSET_VERTICAL_TO_VERTICAL' &&
-                feature.properties.type != 'VELOCITY') {
+                feature.properties.type != 'VELOCITY' &&
+                feature.properties.type != 'DEFORMATION_MODEL') {
                 ok_type = true;
             }
             var ok_agency = agencies_enabled[feature.properties.source_id];
@@ -241,6 +247,7 @@ create_checkbox('horizontal', 'Horizontal shift grids', type_control, types_enab
 create_checkbox('geoid', 'Geoid models', type_control, types_enabled);
 create_checkbox('vertical_adjustments', 'Vertical shifts', type_control, types_enabled);
 create_checkbox('velocity', 'Velocity grids', type_control, types_enabled);
+create_checkbox('deformation_model', 'Deformation models', type_control, types_enabled);
 create_checkbox('other', 'Other grids', type_control, types_enabled);
 
 /**
@@ -307,6 +314,8 @@ map.on('singleclick', function(evt) {
     requests = [];
     map.forEachFeatureAtPixel(evt.pixel, function(feature, layer) {
         var props = feature.getProperties();
+        if( props.url.indexOf('.tif') < 0 )
+            return;
         count ++;
         //content_innerHTML += '<p><a href="' + props.name + '">' + props.name + '</a></p>';
         details_innerHTML += '<hr>';
@@ -598,7 +607,7 @@ map.on('singleclick', function(evt) {
 <li><a href="nl_nsgi_rdcorr2018.tif">nl_nsgi_rdcorr2018.tif</a> - Netherlands - Amersfoort (EPSG:4289) to ETRS89 (EPSG:4258). Last modified: 2020-01-24</li>
 <li><a href="nl_nsgi_rdtrans2018.tif">nl_nsgi_rdtrans2018.tif</a> - Netherlands - Amersfoort (EPSG:4289) to ETRS89 (EPSG:4258). Last modified: 2020-01-24</li>
 </ul><hr><h3><a href="https://www.linz.govt.nz/">Land Information New Zealand</a></h3><ul>
-<li><a href="nz_linz_README.txt">nz_linz_README.txt</a>. Last modified: 2020-01-24</li>
+<li><a href="nz_linz_README.txt">nz_linz_README.txt</a>. Last modified: 2020-05-29</li>
 <li><a href="nz_linz_auckht1946-nzvd2016.tif">nz_linz_auckht1946-nzvd2016.tif</a> - New Zealand - Auckland - NZVD2016 height (EPSG:7839) to Auckland 1946 height (EPSG:5759). Last modified: 2020-02-02</li>
 <li><a href="nz_linz_blufht1955-nzvd2016.tif">nz_linz_blufht1955-nzvd2016.tif</a> - New Zealand - Bluff - NZVD2016 height (EPSG:7839) to Bluff 1955 height (EPSG:5760). Last modified: 2020-02-02</li>
 <li><a href="nz_linz_dublht1960-nzvd2016.tif">nz_linz_dublht1960-nzvd2016.tif</a> - New Zealand - Dunedin-Bluff - NZVD2016 height (EPSG:7839) to Dunedin-Bluff 1960 height (EPSG:4458). Last modified: 2020-02-02</li>
@@ -608,6 +617,69 @@ map.on('singleclick', function(evt) {
 <li><a href="nz_linz_motuht1953-nzvd2016.tif">nz_linz_motuht1953-nzvd2016.tif</a> - New Zealand - Moturiki - NZVD2016 height (EPSG:7839) to Moturiki 1953 height (EPSG:5764). Last modified: 2020-02-02</li>
 <li><a href="nz_linz_napiht1962-nzvd2016.tif">nz_linz_napiht1962-nzvd2016.tif</a> - New Zealand - Napier - NZVD2016 height (EPSG:7839) to Napier 1962 height (EPSG:5765). Last modified: 2020-02-02</li>
 <li><a href="nz_linz_nelsht1955-nzvd2016.tif">nz_linz_nelsht1955-nzvd2016.tif</a> - New Zealand - Nelson - NZVD2016 height (EPSG:7839) to Nelson 1955 height (EPSG:5766). Last modified: 2020-02-02</li>
+<li><a href="nz_linz_nzgd2000-20000101.json">nz_linz_nzgd2000-20000101.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20000101). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-20130801.json">nz_linz_nzgd2000-20130801.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20130801). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-20140201.json">nz_linz_nzgd2000-20140201.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20140201). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-20150101.json">nz_linz_nzgd2000-20150101.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20150101). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-20160701.json">nz_linz_nzgd2000-20160701.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20160701). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-20171201.json">nz_linz_nzgd2000-20171201.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20171201). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-20180701.json">nz_linz_nzgd2000-20180701.json</a> - New Zealand Deformation Model.
+Defines the secular model (National Deformation Model)
+and patches for significant deformation events since 2000.
+ (version 20180701). Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-c120100904-grid01.tif">nz_linz_nzgd2000-c120100904-grid01.tif</a> - NZGD2000 deformation model - Darfield earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-c220110222-grid01.tif">nz_linz_nzgd2000-c220110222-grid01.tif</a> - NZGD2000 deformation model - Christchurch February earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-c320110613-grid01.tif">nz_linz_nzgd2000-c320110613-grid01.tif</a> - NZGD2000 deformation model - Christchurch June earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-c420111223-grid01.tif">nz_linz_nzgd2000-c420111223-grid01.tif</a> - NZGD2000 deformation model - Christchurch earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ch20160214-grid01.tif">nz_linz_nzgd2000-ch20160214-grid01.tif</a> - NZGD2000 deformation model - Christchurch Valentines Day earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-cs20130721-grid01.tif">nz_linz_nzgd2000-cs20130721-grid01.tif</a> - NZGD2000 deformation model - Mw 6.6 Cook Strait earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-cs20130721-grid02.tif">nz_linz_nzgd2000-cs20130721-grid02.tif</a> - NZGD2000 deformation model - Mw 6.6 Cook Strait earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ds20090715-grid011.tif">nz_linz_nzgd2000-ds20090715-grid011.tif</a> - NZGD2000 deformation model - Dusky Sound (Fiordland) earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ds20090715-grid012.tif">nz_linz_nzgd2000-ds20090715-grid012.tif</a> - NZGD2000 deformation model - Dusky Sound (Fiordland) earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ds20090715-grid013.tif">nz_linz_nzgd2000-ds20090715-grid013.tif</a> - NZGD2000 deformation model - Dusky Sound (Fiordland) earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ds20090715-grid014.tif">nz_linz_nzgd2000-ds20090715-grid014.tif</a> - NZGD2000 deformation model - Dusky Sound (Fiordland) earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-gs20071016-grid01.tif">nz_linz_nzgd2000-gs20071016-grid01.tif</a> - NZGD2000 deformation model - Fiordland (George Sound) earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid01.tif">nz_linz_nzgd2000-ka20161114-grid01.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid02.tif">nz_linz_nzgd2000-ka20161114-grid02.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Size: 1.0 MB. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid03.tif">nz_linz_nzgd2000-ka20161114-grid03.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid04.tif">nz_linz_nzgd2000-ka20161114-grid04.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake postearthquake month 0-1, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid05.tif">nz_linz_nzgd2000-ka20161114-grid05.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake postearthquake month 0-1, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid06.tif">nz_linz_nzgd2000-ka20161114-grid06.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake postearthquake month 0-1, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid07.tif">nz_linz_nzgd2000-ka20161114-grid07.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake months1-3 post-earthquake, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid08.tif">nz_linz_nzgd2000-ka20161114-grid08.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake months1-3 post-earthquake, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid09.tif">nz_linz_nzgd2000-ka20161114-grid09.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake months1-3 post-earthquake, 14 November 2016. Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; . Version: Model 002, 23 June 2017. . Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid10.tif">nz_linz_nzgd2000-ka20161114-grid10.tif</a> - NZGD2000 deformation model - Event: Kaikoura earthquake, 14 November 2016. Refinement for horizontal difference between observations and model. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid11.tif">nz_linz_nzgd2000-ka20161114-grid11.tif</a> - NZGD2000 deformation model - Kaikoura earthquake second refinement grid - horizontal. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ka20161114-grid12.tif">nz_linz_nzgd2000-ka20161114-grid12.tif</a> - NZGD2000 deformation model - Kaikoura earthquake second refinement grid -vertical. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-lg20130816-grid01.tif">nz_linz_nzgd2000-lg20130816-grid01.tif</a> - NZGD2000 deformation model - Mw 6.6 Lake Grassmere earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-lg20130816-grid02.tif">nz_linz_nzgd2000-lg20130816-grid02.tif</a> - NZGD2000 deformation model - Mw 6.6 Lake Grassmere earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-mq20041223-grid011.tif">nz_linz_nzgd2000-mq20041223-grid011.tif</a> - NZGD2000 deformation model - Macquarie Plate earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-mq20041223-grid012.tif">nz_linz_nzgd2000-mq20041223-grid012.tif</a> - NZGD2000 deformation model - Macquarie Plate earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-mq20041223-grid013.tif">nz_linz_nzgd2000-mq20041223-grid013.tif</a> - NZGD2000 deformation model - Macquarie Plate earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-mq20041223-grid014.tif">nz_linz_nzgd2000-mq20041223-grid014.tif</a> - NZGD2000 deformation model - Macquarie Plate earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-mq20041223-grid015.tif">nz_linz_nzgd2000-mq20041223-grid015.tif</a> - NZGD2000 deformation model - Macquarie Plate earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-mq20041223-grid016.tif">nz_linz_nzgd2000-mq20041223-grid016.tif</a> - NZGD2000 deformation model - Macquarie Plate earthquake. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ndm-grid01.tif">nz_linz_nzgd2000-ndm-grid01.tif</a> - NZGD2000 deformation model - Secular deformation model derived from GNS model 1998b. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-ndm-grid02.tif">nz_linz_nzgd2000-ndm-grid02.tif</a> - NZGD2000 deformation model - Secular deformation model derived from NUVEL-1A rotation rates. Last modified: 2020-05-29</li>
+<li><a href="nz_linz_nzgd2000-si20030821-grid01.tif">nz_linz_nzgd2000-si20030821-grid01.tif</a> - NZGD2000 deformation model - Secretary Island (Fiordland) earthquake. Last modified: 2020-05-29</li>
 <li><a href="nz_linz_nzgd2kgrid0005.tif">nz_linz_nzgd2kgrid0005.tif</a> - New Zealand - NZGD49 (EPSG:4272) to NZGD2000 (EPSG:4167). Last modified: 2020-01-24</li>
 <li><a href="nz_linz_nzgeoid2009.tif">nz_linz_nzgeoid2009.tif</a> - New Zealand - NZGD2000 (EPSG:4959) to NZVD2009 height (EPSG:4440). Size: 4.1 MB. Last modified: 2020-01-24</li>
 <li><a href="nz_linz_nzgeoid2016.tif">nz_linz_nzgeoid2016.tif</a> - New Zealand - NZGD2000 (EPSG:4959) to NZVD2016 height (EPSG:7839). Size: 5.0 MB. Last modified: 2020-01-24</li>
@@ -740,7 +812,7 @@ map.on('singleclick', function(evt) {
 <li><a href="us_noaa_wyhpgn.tif">us_noaa_wyhpgn.tif</a> - USA - Wyoming - NAD83 (EPSG:4269) to NAD83(HARN) (EPSG:4152). Last modified: 2020-01-24</li>
 </ul>
 <p>
-Total size of content: 491 MB
+Total size of content: 495 MB
 </p>
 
 <h2>Logs</h2>
diff --git a/index.html.in b/index.html.in
index 5ef3948..854a856 100644
--- a/index.html.in
+++ b/index.html.in
@@ -171,6 +171,7 @@ types_enabled['horizontal'] = true;
 types_enabled['geoid'] = true;
 types_enabled['vertical_adjustments'] = true;
 types_enabled['velocity'] = true;
+types_enabled['deformation_model'] = true;
 types_enabled['other'] = true;
 function refresh_source() {
     featureSource.clear();
@@ -194,11 +195,16 @@ function refresh_source() {
                 feature.properties.type == 'VELOCITY') {
                 ok_type = true;
             }
+            if( types_enabled['deformation_model'] &&
+                feature.properties.type == 'DEFORMATION_MODEL') {
+                ok_type = true;
+            }
             if( types_enabled['other'] &&
-            feature.properties.type != 'HORIZONTAL_OFFSET' &&
+                feature.properties.type != 'HORIZONTAL_OFFSET' &&
                 feature.properties.type != 'VERTICAL_OFFSET_GEOGRAPHIC_TO_VERTICAL' &&
                 feature.properties.type != 'VERTICAL_OFFSET_VERTICAL_TO_VERTICAL' &&
-                feature.properties.type != 'VELOCITY') {
+                feature.properties.type != 'VELOCITY' &&
+                feature.properties.type != 'DEFORMATION_MODEL') {
                 ok_type = true;
             }
             var ok_agency = agencies_enabled[feature.properties.source_id];
@@ -239,6 +245,7 @@ create_checkbox('horizontal', 'Horizontal shift grids', type_control, types_enab
 create_checkbox('geoid', 'Geoid models', type_control, types_enabled);
 create_checkbox('vertical_adjustments', 'Vertical shifts', type_control, types_enabled);
 create_checkbox('velocity', 'Velocity grids', type_control, types_enabled);
+create_checkbox('deformation_model', 'Deformation models', type_control, types_enabled);
 create_checkbox('other', 'Other grids', type_control, types_enabled);
 
 /**
@@ -305,6 +312,8 @@ map.on('singleclick', function(evt) {
     requests = [];
     map.forEachFeatureAtPixel(evt.pixel, function(feature, layer) {
         var props = feature.getProperties();
+        if( props.url.indexOf('.tif') < 0 )
+            return;
         count ++;
         //content_innerHTML += '<p><a href="' + props.name + '">' + props.name + '</a></p>';
         details_innerHTML += '<hr>';
diff --git a/nz_linz/nz_linz_README.txt b/nz_linz/nz_linz_README.txt
index d55943a..13928e7 100644
--- a/nz_linz/nz_linz_README.txt
+++ b/nz_linz/nz_linz_README.txt
@@ -15,6 +15,23 @@ The New Zealand grids are published under the
 
 ## Included grids
 
+### NZGD2000 to ITRF96 transformation
+
+*Filename*: nz_linz_nzgd2000-(version).json
+*Reference*: https://www.linz.govt.nz/data/geodetic-system/datums-projections-and-heights/geodetic-datums/new-zealand-geodetic-datum-2000-nzgd2000/nzgd2000-deformation-model
+
+This is a set of deformation model files for each of the versions of the NZGD2000 datum.
+Each version is identified by a nominal publication date in yyyymmdd date format (for example nz_linz_nzgd2000-20180701.json. 
+The JSON files define the deformation model using a set of GeoTiff files, each of which is names with the prefix nz_linz_nzgd2000.
+Note that the transformation from ITRF96 to other realisations such as ITRF2008 should use the NZ specific transformations, for example EPSG:9082 to transform
+between between ITRF2008 and ITRF96.  These are documented in 
+https://www.linz.govt.nz/file/itrftonzgd2000pdf.
+
+Example of conversion from NZGD2000 to ITRF96 at epoch 2016.5
+
+  echo '173 -41 0 2016.5' | \
+     cct -t 2016.5 -d 8 +proj=defmodel +model=nz_linz_nzgd2000-20180701.json 
+
 ### NZGD1949 to NZGD2000 transformation  
 
 *Filename*: nz_linz_nzgd2kgrid0005.tif  
diff --git a/nz_linz/nz_linz_nzgd2000-20000101.json b/nz_linz/nz_linz_nzgd2000-20000101.json
new file mode 100644
index 0000000..eb885de
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20000101.json
@@ -0,0 +1,90 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20000101",
+  "publication_date": "2000-01-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20000101_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
+  "reference_epoch": "2001-01-01T00:00:00Z",
+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
+  "horizontal_offset_method": "addition",
+  "extent": {
+    "type": "bbox",
+    "parameters": {
+      "bbox": [165.0,-48.0,180.0,-32.0]
+    }
+  },
+  "time_extent": {
+    "first": "1900-01-01T00:00:00Z",
+    "last": "2050-01-01T00:00:00Z"
+  },
+  "components": [
+    {
+      "description": "Secular deformation model derived from GNS model 1998b",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [165.0,-48.0,180.0,-32.0]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ndm-grid01.tif",
+        "md5_checksum": "86262382059a2ab6005558ee644642c8"
+      },
+      "time_function": {
+        "type": "velocity",
+        "parameters": {
+          "reference_epoch": "2000-01-01T00:00:00Z"
+        }
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/nz_linz/nz_linz_nzgd2000-20130801.json b/nz_linz/nz_linz_nzgd2000-20130801.json
new file mode 100644
index 0000000..0dba1e0
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20130801.json
@@ -0,0 +1,514 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20130801",
+  "publication_date": "2013-08-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20130801_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
+  "reference_epoch": "2001-01-01T00:00:00Z",
+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
+  "horizontal_offset_method": "addition",
+  "extent": {
+    "type": "bbox",
+    "parameters": {
+      "bbox": [158.0,-58.0,194.0,-25.0]
+    }
+  },
+  "time_extent": {
+    "first": "1900-01-01T00:00:00Z",
+    "last": "2050-01-01T00:00:00Z"
+  },
+  "components": [
+    {
+      "description": "Secular deformation model derived from NUVEL-1A rotation rates\nSecular deformation model derived from GNS model 2011 V4",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [158.0,-58.0,194.0,-25.0]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ndm-grid02.tif",
+        "md5_checksum": "4120882dea2e3c6a878202a6959bb6f3"
+      },
+      "time_function": {
+        "type": "velocity",
+        "parameters": {
+          "reference_epoch": "2000-01-01T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Secretary Island (Fiordland) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [165.85,-47.625,172.3,-43.5]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-si20030821-grid01.tif",
+        "md5_checksum": "0ec03ecf72777fac34df1719c2fe09f9"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2003-08-21T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Macquarie Plate earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
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+        }
+      }
+    },
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+          "model": [
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
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+          ]
+        }
+      }
+    },
+    {
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+        }
+      }
+    },
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+        }
+      }
+    },
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+        }
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+    },
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+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
+      }
+    },
+    {
+      "description": "Christchurch February earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
+      }
+    },
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+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
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+        "parameters": {
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+        }
+      }
+    },
+    {
+      "description": "Christchurch earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
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+        }
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/nz_linz/nz_linz_nzgd2000-20140201.json b/nz_linz/nz_linz_nzgd2000-20140201.json
new file mode 100644
index 0000000..e301da1
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20140201.json
@@ -0,0 +1,564 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20140201",
+  "publication_date": "2014-02-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20140201_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
+  "reference_epoch": "2001-01-01T00:00:00Z",
+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
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+  "extent": {
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+    "parameters": {
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+    "last": "2050-01-01T00:00:00Z"
+  },
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+        }
+      }
+    },
+    {
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+        }
+      }
+    },
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+      },
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+          "after_last": "zero",
+          "model": [
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
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+        }
+      },
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+        "interpolation_method": "bilinear",
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+        "md5_checksum": "65975868bb53148233b65a40a6f1ce5a"
+      },
+      "time_function": {
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+          "after_last": "zero",
+          "model": [
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
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+      "extent": {
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+        }
+      },
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+        "filename": "nz_linz_nzgd2000-ds20090715-grid014.tif",
+        "md5_checksum": "5c157a6632225a3299bf78ec663dab26"
+      },
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
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+      "uncertainty_type": "none",
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+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        }
+      },
+      "spatial_model": {
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+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c120100904-grid01.tif",
+        "md5_checksum": "e585b8230dc8a11917dd6bbf0372e745"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
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+        }
+      }
+    },
+    {
+      "description": "Christchurch February earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
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+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
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+        "md5_checksum": "ba61dca0e88a4fd87c19262bbd3e7450"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-02-22T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch June earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
+      },
+      "spatial_model": {
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+        "interpolation_method": "bilinear",
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+        "md5_checksum": "96f18fe3d433bf25f9f57ae722bd7460"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-06-13T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
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+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-12-23T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Cook Strait earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
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+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
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+        "md5_checksum": "ce1df6d56bf8b4249ba6552cfe776c6c"
+      },
+      "time_function": {
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+        "parameters": {
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+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Lake Grassmere earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-lg20130816-grid01.tif",
+        "md5_checksum": "1cfe74b5a78e48d07c9841f1ffb826b1"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2013-08-16T00:00:00Z"
+        }
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/nz_linz/nz_linz_nzgd2000-20150101.json b/nz_linz/nz_linz_nzgd2000-20150101.json
new file mode 100644
index 0000000..834209a
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20150101.json
@@ -0,0 +1,564 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20150101",
+  "publication_date": "2015-01-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20150101_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
+  "reference_epoch": "2001-01-01T00:00:00Z",
+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
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+    "last": "2050-01-01T00:00:00Z"
+  },
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+        "parameters": {
+          "step_epoch": "2007-10-16T00:00:00Z"
+        }
+      }
+    },
+    {
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+      "time_function": {
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+        }
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
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+      },
+      "time_function": {
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+        }
+      }
+    },
+    {
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+      },
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
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+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        }
+      },
+      "spatial_model": {
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+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c120100904-grid01.tif",
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+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2010-09-04T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch February earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "interpolation_method": "bilinear",
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+        "md5_checksum": "ba61dca0e88a4fd87c19262bbd3e7450"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-02-22T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch June earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
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+        "md5_checksum": "96f18fe3d433bf25f9f57ae722bd7460"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-06-13T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-44.25,173.65,-42.75]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c420111223-grid01.tif",
+        "md5_checksum": "ba3112904f5828722289fa1aa9fd9915"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-12-23T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Cook Strait earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-cs20130721-grid01.tif",
+        "md5_checksum": "ce1df6d56bf8b4249ba6552cfe776c6c"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2013-07-21T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Lake Grassmere earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-lg20130816-grid01.tif",
+        "md5_checksum": "1cfe74b5a78e48d07c9841f1ffb826b1"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2013-08-16T00:00:00Z"
+        }
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/nz_linz/nz_linz_nzgd2000-20160701.json b/nz_linz/nz_linz_nzgd2000-20160701.json
new file mode 100644
index 0000000..5cd6df7
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20160701.json
@@ -0,0 +1,589 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20160701",
+  "publication_date": "2016-07-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20160701_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
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+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
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+    "last": "2050-01-01T00:00:00Z"
+  },
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
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+          "after_last": "zero",
+          "model": [
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
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+      "vertical_uncertainty": 0.01,
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+        }
+      },
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+      },
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
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+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        }
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+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2010-09-04T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch February earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c220110222-grid01.tif",
+        "md5_checksum": "ba61dca0e88a4fd87c19262bbd3e7450"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-02-22T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch June earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c320110613-grid01.tif",
+        "md5_checksum": "96f18fe3d433bf25f9f57ae722bd7460"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-06-13T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-44.25,173.65,-42.75]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c420111223-grid01.tif",
+        "md5_checksum": "ba3112904f5828722289fa1aa9fd9915"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-12-23T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Cook Strait earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-43.375,176.5,-39.5]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-cs20130721-grid02.tif",
+        "md5_checksum": "a0cb6d7871d5cffc51e121de1b154dfa"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2013-07-21T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Lake Grassmere earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [170.95,-44.0,176.65,-39.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-lg20130816-grid02.tif",
+        "md5_checksum": "9531a13d493c005f4102770f75118d92"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2013-08-16T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch Valentines Day earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.7,-44.125,173.65,-42.875]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ch20160214-grid01.tif",
+        "md5_checksum": "3e51d726576358ec9fd1a0c20bd02e85"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-02-14T00:00:00Z"
+        }
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/nz_linz/nz_linz_nzgd2000-20171201.json b/nz_linz/nz_linz_nzgd2000-20171201.json
new file mode 100644
index 0000000..e87228d
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20171201.json
@@ -0,0 +1,869 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20171201",
+  "publication_date": "2017-12-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20171201_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
+  "reference_epoch": "2001-01-01T00:00:00Z",
+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
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+  "extent": {
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+    "parameters": {
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+    "last": "2050-01-01T00:00:00Z"
+  },
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+        "md5_checksum": "65975868bb53148233b65a40a6f1ce5a"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-1.34},
+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Dusky Sound (Fiordland) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [164.65,-51.375,179.5,-39.625]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ds20090715-grid014.tif",
+        "md5_checksum": "5c157a6632225a3299bf78ec663dab26"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-1.34},
+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Darfield earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [168.1,-46.75,176.2,-40.375]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c120100904-grid01.tif",
+        "md5_checksum": "e585b8230dc8a11917dd6bbf0372e745"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2010-09-04T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch February earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [170.8,-44.5,173.8,-42.375]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c220110222-grid01.tif",
+        "md5_checksum": "ba61dca0e88a4fd87c19262bbd3e7450"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-02-22T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch June earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.4,-44.375,173.65,-42.625]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c320110613-grid01.tif",
+        "md5_checksum": "96f18fe3d433bf25f9f57ae722bd7460"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-06-13T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-44.25,173.65,-42.75]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c420111223-grid01.tif",
+        "md5_checksum": "ba3112904f5828722289fa1aa9fd9915"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-12-23T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Cook Strait earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-43.375,176.5,-39.5]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-cs20130721-grid02.tif",
+        "md5_checksum": "a0cb6d7871d5cffc51e121de1b154dfa"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2013-07-21T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Lake Grassmere earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [170.95,-44.0,176.65,-39.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-lg20130816-grid02.tif",
+        "md5_checksum": "9531a13d493c005f4102770f75118d92"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2013-08-16T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch Valentines Day earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.7,-44.125,173.65,-42.875]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ch20160214-grid01.tif",
+        "md5_checksum": "3e51d726576358ec9fd1a0c20bd02e85"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-02-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [165.85,-47.625,179.05,-34.0]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid01.tif",
+        "md5_checksum": "d14be97de204f5b17c8052e6e5289bd4"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [172.525,-42.90625,174.925,-41.28125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid02.tif",
+        "md5_checksum": "71d95d8ead7c68de034a62d11a2f5368"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [166.3,-47.625,179.05,-34.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid03.tif",
+        "md5_checksum": "5761fe541b3f54829d84041febae320b"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake postearthquake month 0-1,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [169.6,-43.75,176.35,-39.0]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid04.tif",
+        "md5_checksum": "d32e8f41e672f52f1ea07744d3aebd38"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "zero",
+          "after_last": "constant",
+          "model": [
+            {"epoch":"2016-11-14T00:00:00Z","scale_factor":0.0},
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":1.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake postearthquake month 0-1,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [172.45,-43.0,174.925,-41.28125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid05.tif",
+        "md5_checksum": "929daa6b723f9f410db35c61887f972f"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-11-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake postearthquake month 0-1,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.85,-43.75,176.05,-40.5]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid06.tif",
+        "md5_checksum": "6733adf1b038113a459ebb2a3621fdc0"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-11-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\nRefinement for horizontal difference between observations and model",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.1,-43.5,177.4,-38.625]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid10.tif",
+        "md5_checksum": "595b70df573a2acc08ca902a58669302"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake months1-3 post-earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [169.6,-43.75,176.35,-38.875]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid07.tif",
+        "md5_checksum": "25102ae59639311f331309a1db5e481d"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "zero",
+          "after_last": "constant",
+          "model": [
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":0.0},
+            {"epoch":"2017-02-14T00:00:00Z","scale_factor":1.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake months1-3 post-earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [172.45,-43.0,174.925,-41.28125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid08.tif",
+        "md5_checksum": "d5bb90fed04a852b712e12d2d6cd5903"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2017-02-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake months1-3 post-earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.4,-43.625,175.9,-40.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid09.tif",
+        "md5_checksum": "5fd95407a15b207086c4170cc23a05a3"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2017-02-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/nz_linz/nz_linz_nzgd2000-20180701.json b/nz_linz/nz_linz_nzgd2000-20180701.json
new file mode 100644
index 0000000..b79da6e
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-20180701.json
@@ -0,0 +1,919 @@
+{
+  "file_type": "deformation_model_master_file",
+  "format_version": "1.0",
+  "name": "NZGD2000 deformation model",
+  "version": "20180701",
+  "publication_date": "2018-07-01T00:00:00Z",
+  "license": "Creative Commons Attribution 4.0 International",
+  "description": "New Zealand Deformation Model.\nDefines the secular model (National Deformation Model)\nand patches for significant deformation events since 2000.\n",
+  "authority": {
+    "name": "Land Information New Zealand",
+    "url": "http://www.linz.govt.nz",
+    "address": "Level 7, Radio New Zealand House\r\n155 The Terrace\r\nPO Box 5501\r\nWellington 6145",
+    "email": "customersupport@linz.govt.nz"
+  },
+  "links": [
+    {
+      "href": "https://www.linz.govt.nz/nzgd2000",
+      "rel": "about",
+      "type": "text/html",
+      "title": "About the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000_deformation_model",
+      "rel": "source",
+      "type": "application/zip",
+      "title": "Authoritative source of the NZGD2000 deformation model"
+    },
+    {
+      "href": "https://creativecommons.org/licenses/by/4.0/",
+      "rel": "license",
+      "type": "text/html",
+      "title": "Creative Commons Attribution 4.0 International license"
+    },
+    {
+      "href": "https://www.geodesy.linz.govt.nz/download/nzgd2000/metadata/nzgd2000_deformation_20180701_metadata.xml",
+      "rel": "metadata",
+      "type": "application/xml",
+      "title": " ISO 19115 XML encoded metadata regarding the deformation model"
+    }
+  ],
+  "source_crs": "EPSG:4959",
+  "target_crs": "EPSG:7907",
+  "definition_crs": "EPSG:4959",
+  "reference_epoch": "2001-01-01T00:00:00Z",
+  "uncertainty_reference_epoch": "2018-12-01T00:00:00Z",
+  "horizontal_offset_unit": "metre",
+  "vertical_offset_unit": "metre",
+  "horizontal_uncertainty_type": "circular 95% confidence limit",
+  "horizontal_uncertainty_unit": "metre",
+  "vertical_uncertainty_type": "95% confidence limit",
+  "vertical_uncertainty_unit": "metre",
+  "horizontal_offset_method": "addition",
+  "extent": {
+    "type": "bbox",
+    "parameters": {
+      "bbox": [158.0,-58.0,194.0,-25.0]
+    }
+  },
+  "time_extent": {
+    "first": "1900-01-01T00:00:00Z",
+    "last": "2050-01-01T00:00:00Z"
+  },
+  "components": [
+    {
+      "description": "Secular deformation model derived from NUVEL-1A rotation rates\nSecular deformation model derived from GNS model 2011 V4",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [158.0,-58.0,194.0,-25.0]
+        }
+      },
+      "spatial_model": {
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+      "uncertainty_type": "none",
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+      "description": "Macquarie Plate earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
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+        }
+      }
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+      "description": "Macquarie Plate earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
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+        "parameters": {
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+      "spatial_model": {
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+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-mq20041223-grid015.tif",
+        "md5_checksum": "73e8b8976d1ee7f89cd2877fce64733c"
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+      "time_function": {
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+          "step_epoch": "2004-12-23T00:00:00Z"
+        }
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+    },
+    {
+      "description": "Macquarie Plate earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [158.8,-53.0,179.5,-40.125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-mq20041223-grid016.tif",
+        "md5_checksum": "152a8c97a9237d22fa77c9571ac0f546"
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+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2004-12-23T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Fiordland (George Sound) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-gs20071016-grid01.tif",
+        "md5_checksum": "7fa88760633267e788419dbf41824b8e"
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+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2007-10-16T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Dusky Sound (Fiordland) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [164.65,-51.375,179.5,-39.625]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ds20090715-grid011.tif",
+        "md5_checksum": "cfb5dabe570827d64c8e51488722e067"
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+      "time_function": {
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+        "parameters": {
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+          "after_last": "zero",
+          "model": [
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+        }
+      }
+    },
+    {
+      "description": "Dusky Sound (Fiordland) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
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+      "vertical_uncertainty": 0.01,
+      "extent": {
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+      "time_function": {
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+          "model": [
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+      }
+    },
+    {
+      "description": "Dusky Sound (Fiordland) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+      "spatial_model": {
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+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ds20090715-grid013.tif",
+        "md5_checksum": "65975868bb53148233b65a40a6f1ce5a"
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+      "time_function": {
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+        "parameters": {
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+          "after_last": "zero",
+          "model": [
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+            {"epoch":"2009-07-15T00:00:00Z","scale_factor":-0.29},
+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+        }
+      }
+    },
+    {
+      "description": "Dusky Sound (Fiordland) earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
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+        "parameters": {
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+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ds20090715-grid014.tif",
+        "md5_checksum": "5c157a6632225a3299bf78ec663dab26"
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+        "parameters": {
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+          "after_last": "zero",
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+            {"epoch":"2011-09-01T00:00:00Z","scale_factor":0.0}
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+        }
+      }
+    },
+    {
+      "description": "Darfield earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+      },
+      "spatial_model": {
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+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c120100904-grid01.tif",
+        "md5_checksum": "e585b8230dc8a11917dd6bbf0372e745"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2010-09-04T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch February earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
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+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c220110222-grid01.tif",
+        "md5_checksum": "ba61dca0e88a4fd87c19262bbd3e7450"
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+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-02-22T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch June earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.4,-44.375,173.65,-42.625]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c320110613-grid01.tif",
+        "md5_checksum": "96f18fe3d433bf25f9f57ae722bd7460"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-06-13T00:00:00Z"
+        }
+      }
+    },
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+      "description": "Christchurch earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-44.25,173.65,-42.75]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-c420111223-grid01.tif",
+        "md5_checksum": "ba3112904f5828722289fa1aa9fd9915"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2011-12-23T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Cook Strait earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.55,-43.375,176.5,-39.5]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-cs20130721-grid02.tif",
+        "md5_checksum": "a0cb6d7871d5cffc51e121de1b154dfa"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2013-07-21T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Mw 6.6 Lake Grassmere earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [170.95,-44.0,176.65,-39.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-lg20130816-grid02.tif",
+        "md5_checksum": "9531a13d493c005f4102770f75118d92"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2013-08-16T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Christchurch Valentines Day earthquake",
+      "displacement_type": "3d",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.7,-44.125,173.65,-42.875]
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+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ch20160214-grid01.tif",
+        "md5_checksum": "3e51d726576358ec9fd1a0c20bd02e85"
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+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-02-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [165.85,-47.625,179.05,-34.0]
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+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid01.tif",
+        "md5_checksum": "d14be97de204f5b17c8052e6e5289bd4"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [172.525,-42.90625,174.925,-41.28125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid02.tif",
+        "md5_checksum": "71d95d8ead7c68de034a62d11a2f5368"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [166.3,-47.625,179.05,-34.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid03.tif",
+        "md5_checksum": "5761fe541b3f54829d84041febae320b"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake postearthquake month 0-1,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [169.6,-43.75,176.35,-39.0]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid04.tif",
+        "md5_checksum": "d32e8f41e672f52f1ea07744d3aebd38"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "zero",
+          "after_last": "constant",
+          "model": [
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+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":1.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake postearthquake month 0-1,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [172.45,-43.0,174.925,-41.28125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid05.tif",
+        "md5_checksum": "929daa6b723f9f410db35c61887f972f"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-11-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake postearthquake month 0-1,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.85,-43.75,176.05,-40.5]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid06.tif",
+        "md5_checksum": "6733adf1b038113a459ebb2a3621fdc0"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-11-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake,  14 November 2016\nRefinement for horizontal difference between observations and model",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.1,-43.5,177.4,-38.625]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid10.tif",
+        "md5_checksum": "595b70df573a2acc08ca902a58669302"
+      },
+      "time_function": {
+        "type": "step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Kaikoura earthquake second refinement grid - horizontal",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.5,-43.425,175.76,-40.56]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid11.tif",
+        "md5_checksum": "b16bad259031e98607967e0fd2fb5541"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Kaikoura earthquake second refinement grid -vertical",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.9,-43.365,176.2,-40.395]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid12.tif",
+        "md5_checksum": "cf80f1716f8744eeb6181bb596800c68"
+      },
+      "time_function": {
+        "type": "reverse_step",
+        "parameters": {
+          "step_epoch": "2016-11-14T00:00:00Z"
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake months1-3 post-earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [169.6,-43.75,176.35,-38.875]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid07.tif",
+        "md5_checksum": "25102ae59639311f331309a1db5e481d"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "zero",
+          "after_last": "constant",
+          "model": [
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":0.0},
+            {"epoch":"2017-02-14T00:00:00Z","scale_factor":1.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake months1-3 post-earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "horizontal",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [172.45,-43.0,174.925,-41.28125]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid08.tif",
+        "md5_checksum": "d5bb90fed04a852b712e12d2d6cd5903"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2017-02-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    },
+    {
+      "description": "Event: Kaikoura earthquake months1-3 post-earthquake,  14 November 2016\n Source model: Geodetic source model, based on GPS, InSAR, and LiDAR data; elastic half-space assumption; \n Version: Model 002, 23 June 2017\n",
+      "displacement_type": "vertical",
+      "uncertainty_type": "none",
+      "horizontal_uncertainty": 0.01,
+      "vertical_uncertainty": 0.01,
+      "extent": {
+        "type": "bbox",
+        "parameters": {
+          "bbox": [171.4,-43.625,175.9,-40.25]
+        }
+      },
+      "spatial_model": {
+        "type": "GeoTIFF",
+        "interpolation_method": "bilinear",
+        "filename": "nz_linz_nzgd2000-ka20161114-grid09.tif",
+        "md5_checksum": "5fd95407a15b207086c4170cc23a05a3"
+      },
+      "time_function": {
+        "type": "piecewise",
+        "parameters": {
+          "before_first": "constant",
+          "after_last": "zero",
+          "model": [
+            {"epoch":"2016-12-14T00:00:00Z","scale_factor":-1.0},
+            {"epoch":"2017-02-14T00:00:00Z","scale_factor":0.0}
+          ]
+        }
+      }
+    }
+  ]
+}
diff --git a/nz_linz/nz_linz_nzgd2000-c120100904-grid01.tif b/nz_linz/nz_linz_nzgd2000-c120100904-grid01.tif
new file mode 100644
index 0000000..b809ff2
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-c120100904-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-c220110222-grid01.tif b/nz_linz/nz_linz_nzgd2000-c220110222-grid01.tif
new file mode 100644
index 0000000..1cf8401
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-c220110222-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-c320110613-grid01.tif b/nz_linz/nz_linz_nzgd2000-c320110613-grid01.tif
new file mode 100644
index 0000000..3b9fee9
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-c320110613-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-c420111223-grid01.tif b/nz_linz/nz_linz_nzgd2000-c420111223-grid01.tif
new file mode 100644
index 0000000..eda8954
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-c420111223-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ch20160214-grid01.tif b/nz_linz/nz_linz_nzgd2000-ch20160214-grid01.tif
new file mode 100644
index 0000000..6330fc9
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ch20160214-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-cs20130721-grid01.tif b/nz_linz/nz_linz_nzgd2000-cs20130721-grid01.tif
new file mode 100644
index 0000000..7c6beed
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-cs20130721-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-cs20130721-grid02.tif b/nz_linz/nz_linz_nzgd2000-cs20130721-grid02.tif
new file mode 100644
index 0000000..76cb4a3
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-cs20130721-grid02.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ds20090715-grid011.tif b/nz_linz/nz_linz_nzgd2000-ds20090715-grid011.tif
new file mode 100644
index 0000000..b8ee596
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ds20090715-grid011.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ds20090715-grid012.tif b/nz_linz/nz_linz_nzgd2000-ds20090715-grid012.tif
new file mode 100644
index 0000000..11fc604
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ds20090715-grid012.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ds20090715-grid013.tif b/nz_linz/nz_linz_nzgd2000-ds20090715-grid013.tif
new file mode 100644
index 0000000..f07e91b
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ds20090715-grid013.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ds20090715-grid014.tif b/nz_linz/nz_linz_nzgd2000-ds20090715-grid014.tif
new file mode 100644
index 0000000..6a5cc61
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ds20090715-grid014.tif
diff --git a/nz_linz/nz_linz_nzgd2000-gs20071016-grid01.tif b/nz_linz/nz_linz_nzgd2000-gs20071016-grid01.tif
new file mode 100644
index 0000000..5a33df1
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-gs20071016-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid01.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid01.tif
new file mode 100644
index 0000000..cfc0ad2
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid02.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid02.tif
new file mode 100644
index 0000000..e6c17b9
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid02.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid03.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid03.tif
new file mode 100644
index 0000000..bb67367
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid03.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid04.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid04.tif
new file mode 100644
index 0000000..b70ada2
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid04.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid05.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid05.tif
new file mode 100644
index 0000000..cb3461e
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid05.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid06.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid06.tif
new file mode 100644
index 0000000..0eef9b2
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid06.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid07.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid07.tif
new file mode 100644
index 0000000..ca7456c
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid07.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid08.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid08.tif
new file mode 100644
index 0000000..6a7b2ff
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid08.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid09.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid09.tif
new file mode 100644
index 0000000..614d3d4
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid09.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid10.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid10.tif
new file mode 100644
index 0000000..413c47a
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid10.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid11.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid11.tif
new file mode 100644
index 0000000..3549205
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid11.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ka20161114-grid12.tif b/nz_linz/nz_linz_nzgd2000-ka20161114-grid12.tif
new file mode 100644
index 0000000..93b21a4
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ka20161114-grid12.tif
diff --git a/nz_linz/nz_linz_nzgd2000-lg20130816-grid01.tif b/nz_linz/nz_linz_nzgd2000-lg20130816-grid01.tif
new file mode 100644
index 0000000..8a791e9
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-lg20130816-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-lg20130816-grid02.tif b/nz_linz/nz_linz_nzgd2000-lg20130816-grid02.tif
new file mode 100644
index 0000000..729a8dc
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-lg20130816-grid02.tif
diff --git a/nz_linz/nz_linz_nzgd2000-mq20041223-grid011.tif b/nz_linz/nz_linz_nzgd2000-mq20041223-grid011.tif
new file mode 100644
index 0000000..00be77e
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-mq20041223-grid011.tif
diff --git a/nz_linz/nz_linz_nzgd2000-mq20041223-grid012.tif b/nz_linz/nz_linz_nzgd2000-mq20041223-grid012.tif
new file mode 100644
index 0000000..b876185
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-mq20041223-grid012.tif
diff --git a/nz_linz/nz_linz_nzgd2000-mq20041223-grid013.tif b/nz_linz/nz_linz_nzgd2000-mq20041223-grid013.tif
new file mode 100644
index 0000000..1df1f3c
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-mq20041223-grid013.tif
diff --git a/nz_linz/nz_linz_nzgd2000-mq20041223-grid014.tif b/nz_linz/nz_linz_nzgd2000-mq20041223-grid014.tif
new file mode 100644
index 0000000..8c20e20
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-mq20041223-grid014.tif
diff --git a/nz_linz/nz_linz_nzgd2000-mq20041223-grid015.tif b/nz_linz/nz_linz_nzgd2000-mq20041223-grid015.tif
new file mode 100644
index 0000000..c39cccc
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-mq20041223-grid015.tif
diff --git a/nz_linz/nz_linz_nzgd2000-mq20041223-grid016.tif b/nz_linz/nz_linz_nzgd2000-mq20041223-grid016.tif
new file mode 100644
index 0000000..6eaa8a5
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-mq20041223-grid016.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ndm-grid01.tif b/nz_linz/nz_linz_nzgd2000-ndm-grid01.tif
new file mode 100644
index 0000000..072f977
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ndm-grid01.tif
diff --git a/nz_linz/nz_linz_nzgd2000-ndm-grid02.tif b/nz_linz/nz_linz_nzgd2000-ndm-grid02.tif
new file mode 100644
index 0000000..b38dfdf
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-ndm-grid02.tif
diff --git a/nz_linz/nz_linz_nzgd2000-si20030821-grid01.tif b/nz_linz/nz_linz_nzgd2000-si20030821-grid01.tif
new file mode 100644
index 0000000..f07d50b
--- /dev/null
+++ b/nz_linz/nz_linz_nzgd2000-si20030821-grid01.tif
diff --git a/regenerate_index_html.py b/regenerate_index_html.py
index 6c3527a..f0896fc 100755
--- a/regenerate_index_html.py
+++ b/regenerate_index_html.py
@@ -53,6 +53,28 @@ lyr.CreateField(ogr.FieldDefn('full_bbox', ogr.OFTRealList))
 lyr.CreateField(ogr.FieldDefn('file_size', ogr.OFTInteger64))
 lyr.CreateField(ogr.FieldDefn('sha256sum', ogr.OFTString))
 
+def polygon_from_bbox(xmin, ymin, xmax, ymax):
+    geom = ogr.Geometry(ogr.wkbPolygon)
+    ring = ogr.Geometry(ogr.wkbLinearRing)
+    # Add small epsilon to help unioning polygons touching by edge
+    eps = 1e-12
+    ring.AddPoint_2D(xmin-eps, ymin-eps)
+    ring.AddPoint_2D(xmin-eps, ymax+eps)
+    ring.AddPoint_2D(xmax+eps, ymax+eps)
+    ring.AddPoint_2D(xmax+eps, ymin+eps)
+    ring.AddPoint_2D(xmin-eps, ymin-eps)
+    geom.AddGeometry(ring)
+    return geom
+
+def normalize_lon(xmin, xmax):
+    if xmin > 180:
+        xmin -= 360
+        xmax -= 360
+    elif xmax < -180:
+        xmin += 360
+        xmax += 360
+    return xmin, xmax
+
 total_size = 0
 set_files = set()
 for dirname in sorted(dirnames):
@@ -89,7 +111,7 @@ for dirname in sorted(dirnames):
 
         ds = gdal.OpenEx(full_filename)
         if ds:
-            imageDesc = ds.GetMetadataItem('TIFFTAG_IMAGEDESCRIPTION')
+            imageDesc = ds.GetMetadataItem('TIFFTAG_IMAGEDESCRIPTION').replace('\r\n', '. ').replace('\n', '. ').replace('. .', '.').replace('  ', ' ')
             if imageDesc:
                 pos = imageDesc.find('. Converted from')
                 if pos >= 0:
@@ -139,33 +161,11 @@ for dirname in sorted(dirnames):
                 sr = osr.SpatialReference()
                 assert sr.SetFromUserInput(target_crs_wkt) == 0
                 feat['target_crs_name'] = sr.GetName()
-            elif ds.GetMetadataItem('TYPE') != 'VELOCITY':
-                assert False
-
-            def normalize_lon(xmin, xmax):
-                if xmin > 180:
-                    xmin -= 360
-                    xmax -= 360
-                elif xmax < -180:
-                    xmin += 360
-                    xmax += 360
-                return xmin, xmax
+            elif ds.GetMetadataItem('TYPE') not in ('VELOCITY', 'DEFORMATION_MODEL'):
+                assert False, (full_filename, target_crs_epsg_code, target_crs_wkt)
 
             xmin, xmax = normalize_lon(xmin, xmax)
 
-            def polygon_from_bbox(xmin, ymin, xmax, ymax):
-                geom = ogr.Geometry(ogr.wkbPolygon)
-                ring = ogr.Geometry(ogr.wkbLinearRing)
-                # Add small epsilon to help unioning polygons touching by edge
-                eps = 1e-12
-                ring.AddPoint_2D(xmin-eps, ymin-eps)
-                ring.AddPoint_2D(xmin-eps, ymax+eps)
-                ring.AddPoint_2D(xmax+eps, ymax+eps)
-                ring.AddPoint_2D(xmax+eps, ymin+eps)
-                ring.AddPoint_2D(xmin-eps, ymin-eps)
-                geom.AddGeometry(ring)
-                return geom
-
             subds_list = ds.GetSubDatasets()
             if subds_list:
                 geom = None
@@ -200,6 +200,28 @@ for dirname in sorted(dirnames):
 
             feat.SetGeometry(geom)
 
+        elif full_filename.endswith('.json'):
+
+            json_content = json.loads(open(full_filename, 'rb').read().decode('UTF-8'))
+            if 'file_type' in json_content and json_content['file_type'] == 'deformation_model_master_file':
+                feat['type'] = 'DEFORMATION_MODEL'
+
+                feat['source_crs_code'] = json_content['source_crs']
+                sr = osr.SpatialReference()
+                assert sr.SetFromUserInput(feat['source_crs_code']) == 0
+                feat['source_crs_name'] = sr.GetName()
+
+                feat['target_crs_code'] = json_content['target_crs']
+                sr = osr.SpatialReference()
+                assert sr.SetFromUserInput(feat['target_crs_code']) == 0
+                feat['target_crs_name'] = sr.GetName()
+
+                feat['description'] = json_content['description'].replace('\\n', ' ') + ' (version ' + json_content['version'] + ')'
+                desc = feat['description']
+                xmin, ymin, xmax, ymax = json_content['extent']['parameters']['bbox']
+                geom = polygon_from_bbox(xmin, ymin, xmax, ymax)
+                feat.SetGeometry(geom)
+
         feat['url'] = cdn_url + '/' + f
         feat['name'] = f
         feat['source'] = agency['agency']
diff --git a/travis/expected_main.lst b/travis/expected_main.lst
index 13e0e6c..1009632 100644
--- a/travis/expected_main.lst
+++ b/travis/expected_main.lst
@@ -156,6 +156,48 @@ nz_linz_lyttht1937-nzvd2016.tif
 nz_linz_motuht1953-nzvd2016.tif
 nz_linz_napiht1962-nzvd2016.tif
 nz_linz_nelsht1955-nzvd2016.tif
+nz_linz_nzgd2000-20000101.json
+nz_linz_nzgd2000-20130801.json
+nz_linz_nzgd2000-20140201.json
+nz_linz_nzgd2000-20150101.json
+nz_linz_nzgd2000-20160701.json
+nz_linz_nzgd2000-20171201.json
+nz_linz_nzgd2000-20180701.json
+nz_linz_nzgd2000-c120100904-grid01.tif
+nz_linz_nzgd2000-c220110222-grid01.tif
+nz_linz_nzgd2000-c320110613-grid01.tif
+nz_linz_nzgd2000-c420111223-grid01.tif
+nz_linz_nzgd2000-ch20160214-grid01.tif
+nz_linz_nzgd2000-cs20130721-grid01.tif
+nz_linz_nzgd2000-cs20130721-grid02.tif
+nz_linz_nzgd2000-ds20090715-grid011.tif
+nz_linz_nzgd2000-ds20090715-grid012.tif
+nz_linz_nzgd2000-ds20090715-grid013.tif
+nz_linz_nzgd2000-ds20090715-grid014.tif
+nz_linz_nzgd2000-gs20071016-grid01.tif
+nz_linz_nzgd2000-ka20161114-grid01.tif
+nz_linz_nzgd2000-ka20161114-grid02.tif
+nz_linz_nzgd2000-ka20161114-grid03.tif
+nz_linz_nzgd2000-ka20161114-grid04.tif
+nz_linz_nzgd2000-ka20161114-grid05.tif
+nz_linz_nzgd2000-ka20161114-grid06.tif
+nz_linz_nzgd2000-ka20161114-grid07.tif
+nz_linz_nzgd2000-ka20161114-grid08.tif
+nz_linz_nzgd2000-ka20161114-grid09.tif
+nz_linz_nzgd2000-ka20161114-grid10.tif
+nz_linz_nzgd2000-ka20161114-grid11.tif
+nz_linz_nzgd2000-ka20161114-grid12.tif
+nz_linz_nzgd2000-lg20130816-grid01.tif
+nz_linz_nzgd2000-lg20130816-grid02.tif
+nz_linz_nzgd2000-mq20041223-grid011.tif
+nz_linz_nzgd2000-mq20041223-grid012.tif
+nz_linz_nzgd2000-mq20041223-grid013.tif
+nz_linz_nzgd2000-mq20041223-grid014.tif
+nz_linz_nzgd2000-mq20041223-grid015.tif
+nz_linz_nzgd2000-mq20041223-grid016.tif
+nz_linz_nzgd2000-ndm-grid01.tif
+nz_linz_nzgd2000-ndm-grid02.tif
+nz_linz_nzgd2000-si20030821-grid01.tif
 nz_linz_nzgd2kgrid0005.tif
 nz_linz_nzgeoid2009.tif
 nz_linz_nzgeoid2016.tif