The files in this section result from the conversion of datasets originating from National Land Survey of Iceland
2D geodetic transformation from Iceland Datum ISN93 to Iceland Datum ISN2016
Source: National Land Survey of Iceland
Format: GeoTIFF converted from NTv2
License: Creative Commons Attribution 4.0
Credit: (c)2017-2019 Grid created by Guðmundur Valsson.
The transformation is designed so that the ISN2016 points should fit within 1-2 cm accuracy, but in the area around the earthquake area in the South and North of Vatnajökull the accuracy is worse.
Recommended to transform from ISN93 2D geodetic (EPSG:4659) to ISN2016 2D geodetic (EPSG:8086), also this transformation has code in EPSG Dataset (EPSG:9232)
- is_lmi_ISN93_ISN2016.tif
2D geodetic transformation from Iceland Datum ISN2004 to Iceland Datum ISN2016
Source: National Land Survey of Iceland
Format: GeoTIFF converted from NTv2
License: Creative Commons Attribution 4.0
Credit: (c)2017-2019 Grid created by Guðmundur Valsson.
The transformation is designed so that the ISN2016 points should fit within 1-2 cm accuracy, but in the area around the earthquake area in the South and North of Vatnajökull the accuracy is worse.
Recommended to transform from ISN2004 2D geodetic (EPSG:5324) to ISN2016 2D geodetic (EPSG:8086), also this transformation has code in EPSG Dataset (EPSG:9233)
- is_lmi_ISN2004_ISN2016.tif
Source: National Land Survey of Iceland
Format: GeoTIFF converted from GTX
License: Creative Commons Attribution 4.0
Credit: (c)2017-2019 Grid created by Guðmundur Valsson.
Geoid created in cooperation between the National Land Survey of Iceland and DTU Space in December 2010. A gravimetric geoid was fitted to National Height System ISH2004 (EPSG:8089) with over 300 GNSS levelling points with ellipsoidal height in ISN2004 (EPSG:5323). The std. of the fit was 1.7 cm.
Grid to convert from ISN2004 ellipsoidal height (EPSG:5323) to national vertical datum ISH2004 (EPSG:8089) The horizontal grid coordinates are referenced to ISN2004
See the ISL init-file for examples of use.
- is_lmi_Icegeoid_ISN2004.tif
Source: National Land Survey of Iceland
Format: GeoTIFF converted from GTX
License: Creative Commons Attribution 4.0
Credit: (c)2017-2019 Grid created by Guðmundur Valsson.
Icegeoid_ISN2004.tif plus corrections for vertical difference between ISN93(EPSG:4945) and ISN2004 (EPSG:5323).
Grid to convert from ISN93 ellipsoidal height (EPSG:4945) to national vertical datum ISH2004 (EPSG:8089) The horizontal grid coordinates are referenced to ISN93
See the ISL init-file for examples of use.
- is_lmi_Icegeoid_ISN93.tif
Source: National Land Survey of Iceland
Format: GeoTIFF converted from GTX
License: Creative Commons Attribution 4.0
Credit: (c)2017-2019 Grid created by Guðmundur Valsson.
Icegeoid_ISN2004.tif plus corrections for vertical difference between ISN2016(EPSG:8085) and ISN2004 (EPSG:5323).
Grid to convert from ISN2016 ellipsoidal height (EPSG:8085) to national vertical datum ISH2004 (EPSG:8089) The horizontal grid coordinates are referenced to ISN2016
See the ISL init-file for examples of use.
- Icegeoid_ISN2016.tif
Source: National Land Survey of Iceland
Format: GeoTIFF converted from CTable2 and GTX
License: Creative Commons Attribution 4.0
Credit: (c)2017-2019 Grid created by Guðmundur Valsson.
Used in transformations between ISN2016 and global reference frame realisation ITRF2014 with different epochs, also transformation between different epochs within ITRF2014 frame.
See the ISL init-file for examples of use.
- is_lmi_ISN_vel_beta.tif
Source: National Land Survey of Iceland
License: Creative Commons Attribution 4.0
Init file with various transformations and conversions of relevance in Iceland.
- ISL