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+# README.au_geoau
+
+The files in this section result from the conversion of datasets originating
+from [ICSM]
+
+## Included grids
+
+### Australia: AGD66 -> GDA94
+
+*Source*: [ICSM]  
+*Format*: GeoTIFF convered from NTv2  
+*License*: [Creative Commons Attribution 4.0]
+
+Full national coverage two-way transformation file – see Appendix B
+in the [GDA2020 Technical Manual] for details.
+
+* A66_National_13_09_01.tif
+
+### Australia: AGD84 -> GDA94
+
+*Source*: [ICSM]  
+*Format*: GeoTIFF convered from NTv2  
+*License*: [Creative Commons Attribution 4.0]
+
+Full coverage two-way transformation file in those states that
+originally adopted AGD84 - West Australia, South Australia, Queensland – see
+Appendix B in the [GDA2020 Technical Manual] for details.
+
+* National_84_02_07_01.tif
+
+### Australia: GDA94 -> GDA2020
+
+*Source*: [ICSM]  
+*Format*: GeoTIFF convered from NTv2  
+*License*: [Creative Commons Attribution 4.0]
+
+Full national coverage two-way transformation files – See Sections 3.2
+and 3.7 in the [GDA2020 Technical Manual] for details.
+Table 3.4 details which grid to use.
+
+* GDA94_GDA2020_conformal.tif
+* GDA94_GDA2020_conformal_and_distortion.tif
+* GDA94_GDA2020_conformal_christmas_island.tif
+* GDA94_GDA2020_conformal_cocos_island.tif
+
+[Creative Commons Attribution 4.0]: https://creativecommons.org/licenses/by/4.0/
+[GDA2020 Technical Manual]: http://www.icsm.gov.au/datum/gda2020-and-gda94-technical-manuals
+[ICSM]: https://github.com/icsm-au/transformation_grids