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# dk_sdfe_README.txt
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.
* dk_sdfe_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.
* dk_sdfe_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.
* dk_sdfe_fvr09.tif
## 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_sdfe_DK` init-file.
The `.pol` files holds polynomial constants used for transformations between
Danish legacy coordinate reference systems and ETRS89.
* DK
* dk_sdfe_DK_bornholm.pol
* dk_sdfe_DK_bridges.pol
* dk_sdfe_DK_general.pol
* dk_sdfe_DK_jutland.pol
* dk_sdfe_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
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