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diff --git a/dk_sdfe/README.dk_sdfe b/dk_sdfe/README.dk_sdfe new file mode 100644 index 0000000..cc4f9c8 --- /dev/null +++ b/dk_sdfe/README.dk_sdfe @@ -0,0 +1,106 @@ +# README.dk_sdfe + +The files in this section result from the conversion of datasets originating +from [Agency for Data Supply and Efficiency](https://github.com/NordicGeodesy/NordicTransformations) + +## Included grids + +### Denmark: DVR90 heights -> ETRS89 ellipsoidal heights + +*Source*: [Agency for Data Supply and Efficiency](https://github.com/NordicGeodesy/NordicTransformations) +*Format*: GeoTIFF converted from GTX +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Transform local height system DVR90 (EPSG:5799) to ETRS89 ellipsoidal heights (EPSG:4937). The horizontal +grid coordinates are referenced to ETRS89. + +* dvr90.tif + +### Denmark: DNN heights -> ETRS89 ellipsoidal heights + +*Source*: [Agency for Data Supply and Efficiency](https://github.com/NordicGeodesy/NordicTransformations) +*Format*: GeoTIFF converted from GTX +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Transform local height system DNN (EPSG:5733) to ETRS89 ellipsoidal heights (EPSG:4937). The horizontal +grid coordinates are referenced to ETRS89. + +* dnn.tif + +### Faroe Islands: FVR09 heights -> ETRS89 ellipsoidal heights + +*Source*: [Agency for Data Supply and Efficiency](https://github.com/NordicGeodesy/NordicTransformations) +*Format*: GeoTIFF converted from GTX +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Transform local height system FVR09 (EPSG:5317) to ETRS89 ellipsoidal heights (EPSG:4937). The horizontal +grid coordinates are referenced to ETRS89. + +* fvr09.tif + +### Nordic+Baltic countries: Deformation model + +*Source*: [The Nordic Geodetic Commission](https://github.com/NordicGeodesy/NordicTransformations) +*Format*: CTable2 and GTX +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Deformation model covering the Nordic and Baltic countries. Used in +transformations between global reference frames and the local realisations +of ETRS89 in the Nordic and Baltic countries. See the `NKG` init-file for +examples of use. + +* nkgrf03vel_realigned_xy.ct2 +* nkgrf03vel_realigned_z.gtx + +## Included init-files + +### Denmark: System definitions related to ETRS89 + +*Source*: [Agency for Data Supply and Efficiency](https://github.com/NordicGeodesy/NordicTransformations) +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Init files with various transformations and conversions of relevance in +Denmark. All definitions in the init file uses the local ETRS89 reference +frame as a pivot datum. More information can be found in the +[NordicTransformations](https://github.com/NordicGeodesy/NordicTransformations) +repository. While the `.pol` files are init-files they are not supposed to be +by themselves. The exist purely as helper files for the `DK` init-file. +The `.pol` files holds polynomial constants used for transformations between +Danish legacy coordinate reference systems and ETRS89. + +* DK +* DK_bornholm.pol +* DK_bridges.pol +* DK_general.pol +* DK_jutland.pol +* DK_zealand.pol + +### The Faroe Islands: System definitions related to ETRS89 + +*Source*: [Agency for Data Supply and Efficiency](https://github.com/NordicGeodesy/NordicTransformations) +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Init file with various transformations and conversions of relevance in +The Faroe Islands. All definitions in the init file uses the local ETRS89 +reference frame as a pivot datum. More information can be found in the +[NordicTransformations](https://github.com/NordicGeodesy/NordicTransformations) +repository. + +* FO + +### Nordic+Baltic countries: ITRFxx -> Local ETRS89 realizations + +*Source*: [The Nordic Geodetic Commission](https://github.com/NordicGeodesy/NordicTransformations) +*License*: [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) + +Transformations to and from the common Nordic referenc frame NKG_ETRF00. +This init-file describes transformations between global reference frames +and NKG_ETRF00 as well as transformations from NKG_ERTF00 to the local +realisations of ETRS89 in each of the countries involved with NKG. + +All transformations in this init-file uses the common Nordic frame as a +pivot datum. Exempt from this dogma are transformations with labels +starting with ``_``. Those transformations are "private" to this file and are +only used as steps in more complicated transformations. + +* NKG |