Geoid models
Geoid models are used in Hydromagic to calculate tides, or the height of the bottom of a river or lake using a RTK receiver and a vertical datum. By default, the installation package of Eye4Software Hydromagic only contains a small selection of geoid models.
We only ship a selection of geoids with the software, because the package would be several hundreds of megabytes when we decide to include all these files. This page allows you to find and download the required geoid model in the ".GEO" format used by Hydromagic. The video below shows how to import the files into Hydromagic:
All .GEO files are converted directly from the geoid files downloaded from official sources.
We are not responsible for the contents of these files, you will use them at your own risk.
Argentina
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| GAR2007.zip | GRS80 | Unknown | Height transformation for Argentina |
Australia
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| AUSGeoid98.zip | GDA94 | AHD | AUSGeoid98 - Australian Geoid 1998 |
| AUSGeoid09_NSW.zip | GDA94 | AHD | AUSGeoid09 - New South Wales and Australian Capital |
| AUSGeoid09_NT.zip | GDA94 | AHD | AUSGeoid09 - Northern Territory |
| AUSGeoid09_QLD.zip | GDA94 | AHD | AUSGeoid09 - Queensland |
| AUSGeoid09_SA.zip | GDA94 | AHD | AUSGeoid09 - South Australia |
| AUSGeoid09_TAS.zip | GDA94 | AHD | AUSGeoid09 - Tasmania |
| AUSGeoid09_VIC.zip | GDA94 | AHD | AUSGeoid09 - Victoria |
| AUSGeoid09_WA.zip | GDA94 | AHD | AUSGeoid09 - Western Australia |
| AUSGeoid2020.zip | GDA2020 | AHD | AUSGeoid2020 - Australia |
Bahrain
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| BahField.zip | ETRS89 | BahField | BahField height model for Bahrain |
Belgium
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| hBG03.zip | ETRS89 | TAW | HBG03 height model for Belgium |
| hBG18.zip | ETRS89 | TAW | HBG18 height model for Belgium |
Bolivia
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| BOLGEO.zip | Height transformation for Bolivia |
Brasil
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| MAPGEO2010_SAD69.zip | WGS84 | SAD69 | Height transformation for Brasil (2010 Version) |
| MAPGEO2010_SIRGAS.zip | WGS84 | SIRGAS2000 | Height transformation for Brasil (2010 Version) |
| MAPGEO2015_SIRGAS.zip | WGS84 | SIRGAS2000 | Height transformation for Brasil (2015 Version) |
Canada
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| CGG2013an83.zip | NAD83(CSRS) | CGVD2013 | Canadian gravimetric geoid model of 2013 – Version A |
| CGG2013ai08.zip | ITRF2008 | CGVD2013 | Canadian gravimetric geoid model of 2013 – Version A |
| CGG2013n83.zip | NAD83(CSRS) | CGVD2013 | Canadian gravimetric geoid model of 2013 |
| CGG2013i08.zip | ITRF2008 | CGVD2013 | Canadian gravimetric geoid model of 2013 |
| CGG2010n83.zip | NAD83(CSRS) | Canadian gravimetric geoid model of 2010 | |
| CGG2010i05.zip | ITRF2005 | Canadian gravimetric geoid model of 2010 | |
| CGG2005n83.zip | NAD83(CSRS) | Canadian gravimetric geoid model of 2005 | |
| CGG2005i00.zip | ITRF2000 | Canadian gravimetric geoid model of 2005 | |
| CGG2000n83.zip | NAD83(CSRS) | Canadian gravimetric geoid model of 2000 | |
| CGG2000i97.zip | ITRF97 | Canadian gravimetric geoid model of 2000 | |
| HT2_1997.zip | NAD83(CSRS) | CGVD28 | Height transformation version 2.0 for Canada (Epoch: 1997.0) |
| HT2_2002.zip | NAD83(CSRS) | CGVD28 | Height transformation version 2.0 for Canada (Epoch: 2002.0) |
| HT2_2010.zip | NAD83(CSRS) | CGVD28 | Height transformation version 2.0 for Canada (Epoch: 2010.0) |
Caribbean
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| car97e.zip | GRS80 | MSL | Geoid model for East Caribbean |
| car97w.zip | GRS80 | MSL | Geoid model for West Caribbean |
Croatia
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| HRG2009.zip | WGS84 | HTRS96 | HRG2009 Height transformation for Croatia |
Denmark
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| dvr90.zip | ETRS89 | DVR90 | Height transformation for Danish Vertical Reference 1990 |
Finland
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| FIN2000.zip | ETRS89 | N60 | Height transformation for the Finnish N60 height system |
| FIN2005N00.zip | ETRS89 | N2000 | Height transformation for the Finnish N2000 height system |
France
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| RAF09.zip | ETRS89 | RAF09 | Surface de conversion RAF09 pour la France continentale |
| RAC09.zip | ETRS89 | RAF09 | Surface de conversion RAC09 pour la Corse |
| RAF18.zip | RGF93 | IGN69 | Surface de conversion RAF18 pour la France continentale |
| RAF18b.zip | RGF93 | IGN69 | Surface de conversion RAF18b pour la France continentale |
| RAF20.zip | RGF93 | IGN69 | Surface de conversion RAF20 pour la France continentale |
French Guiana
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| GGGUY00.zip | RGFG95 | NGG77 | Surface de conversion GGGUY00 pour la Guyane française |
| GGGUY15.zip | RGFG95 | NGG77 | Surface de conversion GGGUY15 pour la Guyane française |
French Polynesia
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| ggpf10-Moorea.zip | Moorea 1981 | RGPF | Moorea 1981 (Morea Sau 2001) to RGPF |
Global
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| EGM84.zip | WGS84 | MSL | WGS 84 Earth Gravitational Model 1984 |
| EGM96.zip | WGS84 | MSL | WGS 84 Earth Gravitational Model 1996 |
Greece
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| HEPOS.zip | GGRS87 | HTRS07 | HEPOS height transformation for Greece |
Hungary
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| eht2014.zip | ETRS89 | EOV | EHT2014 height transformation for Hungary |
Ireland
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| OSGM02_Ireland.zip | ETRS89 | Malin Head | OSGM02 geoid model for the Republic of Ireland |
Israel
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| ILUM2.zip | ILUM2 geoid model for Israel |
Italy
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| ITG2009.zip | ETRS89 | Height transformation for Italy 2009 |
Martinique
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| RAMART2016.zip | NGF-IGN78 | RGF93 | Height transformation for Martinique 2016 |
Mexico
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| GGM10.zip | ITRF08 | ? | Geoide Gravimétrico Mexicano 2010 |
| MEXICO97.zip | GRS80 | NAVD88 | MEXICO97 grids for Mexico |
Morocco
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| MORGEO.zip | GRS80 | Height transformation for Morocco |
Netherlands
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| rdnap2004.zip | ETRS89 | NAP | RDNAPTRANS height model for the Netherlands (2004) |
| rdnap2008.zip | ETRS89 | NAP | RDNAPTRANS height model for the Netherlands (2008) |
| rdnap2018.zip | ETRS89 | NAP | RDNAPTRANS height model for the Netherlands (2018) |
New Zealand
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| nzgeoid2009.zip | WGS84 | NZVD2009 | NZGeoid2009 grid for New Zealand |
| nzgeoid2016.zip | WGS84 | NZVD2016 | NZGeoid2016 grid for New Zealand |
Norway
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| NN2000.zip | ETRS89 | NN2000 | Height transformation for Norways Vertical Datum NN2000 |
Poland
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| PLgeo01.zip | ETRS89 | PL-KRON86-NH | Height transformation for Poland (2001) |
| PLgeo11.zip | ETRS89 | PL-KRON86-NH | Height transformation for Poland (2011) |
| PLgeo21.zip | ETRS89 | EVRF2007 | Height transformation for Poland (2021) |
Portugal
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| pt08.zip | ETRS89 | PT08 | GeodPT08 geoid model for Portugal |
Saint-Pierre et Miquelon
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| ggspm06v1.zip | Danger 1950 | RGSPM06 | Saint-Pierre et Miquelon (GGSPM06), Danger 1950 (Saint-Pierre et Miquelon) to RGSPM06 (Reseau Geodesique de Saint-Pierre et Miquelon 2006) |
Slovakia
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| dvrm.zip | ETRS89 | Bpv | DVRM05 Geoid model for Slovakia - Baltic height system Bpv |
| Slovakia_EVRF2007.zip | ETRS89 | EVRF2007_AMST | EVRS (EVRF2007) Geoid model for Slovakia |
Spain
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| EGM08_REDNAP.zip | WGS84 | REDNAP | IGN Modelo de Geoide EGM08-REDNAP - Peninsula |
| EGM08_CANARIAS.zip | WGS84 | REDNAP | IGN Modelo de Geoide EGM08-REDNAP - Islas Canarias |
South Africa
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| SAGEOID2010.zip | WGS84 | LLD | SAGEOID2010 geoid model for South Africa |
Sweden
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| SWEN08_RH70.zip | GRS80 | RH70 | Swedish national geoid model 2008 (RH70) |
| SWEN08_RH2000.zip | GRS80 | RH2000 | Swedish national geoid model 2008 (RH2000) |
Swiss
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| CHGEO04A.zip | GRS80 | RH70 | CHGEO04 geoid model for Swiss |
United Kingdom
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| OSGM02_Mainland.zip | ETRS89 | Newlyn | OSGM02 Grid for the mainland |
| OSGM02_ScillyIsles.zip | ETRS89 | St Marys | OSGM02 Grid for the Scilly Isles |
| OSGM02_IsleOfMan.zip | ETRS89 | Douglas02 | OSGM02 Grid for the Isle of Man |
| OSGM02_OuterHebrides.zip | ETRS89 | Stornoway | OSGM02 Grid for the Outer Hebrides |
| OSGM02_StKilda.zip | ETRS89 | St Kilda | OSGM02 Grid for St Kilda |
| OSGM02_ShetlandIsles.zip | ETRS89 | Lerwick | OSGM02 Grid for the Shetland Isles |
| OSGM02_OrkneyIsles.zip | ETRS89 | Newlyn | OSGM02 Grid for the Orkney Isles |
| OSGM02_FairIsle.zip | ETRS89 | Fair Isle | OSGM02 Grid for the Fair Isle |
| OSGM02_FlannanIsles.zip | ETRS89 | Flannan Isles | OSGM02 Grid for the Flannan Isles |
| OSGM02_NorthRona.zip | ETRS89 | North Rona | OSGM02 Grid for North Rona |
| OSGM02_SuleSkerry.zip | ETRS89 | Sule Skerry | OSGM02 Grid for Sule Skerry |
| OSGM02_Foula.zip | ETRS89 | Foula | OSGM02 Grid for Foula |
| OSGM02_NorthernIreland.zip | ETRS89 | Belfast | OSGM02 Grid for Northern Ireland |
United States
| File(s) | Source Datum | Destination Datum | Description |
|---|---|---|---|
| GEOID99_ALASKA.zip | NAD83 | NAVD88 | GEOID99 grids for Alaska |
| GEOID99_CONUS.zip | NAD83 | NAVD88 | GEOID99 grids for the conterminous United States |
| GEOID99_HAWAII.zip | NAD83 | NAVD88 | GEOID99 grid for Hawaii |
| GEOID99_PRVI.zip | NAD83 | NAVD88 | GEOID99 grid for Puerto Rico and Virgin Islands |
| GEOID03_ALASKA.zip | NAD83 | NAVD88 | GEOID03 grids for Alaska |
| GEOID03_CONUS.zip | NAD83 | NAVD88 | GEOID03 grids for the conterminous United States |
| GEOID03_HAWAII.zip | NAD83 | NAVD88 | GEOID03 grid for Hawaii |
| GEOID03_PRVI.zip | NAD83 | NAVD88 | GEOID03 grid for Puerto Rico and Virgin Islands |
| GEOID09_ALASKA.zip | NAD83 | NAVD88 | GEOID09 grids for Alaska |
| GEOID09_CONUS.zip | NAD83 | NAVD88 | GEOID09 grids for the conterminous United States |
| GEOID09_GMNI.zip | NAD83 | NAVD88 | GEOID09 grid for Guam and Northern Mariana Islands |
| GEOID09_HAWAII.zip | NAD83 | NAVD88 | GEOID09 grid for Hawaii |
| GEOID09_PRVI.zip | NAD83 | NAVD88 | GEOID09 grid for Puerto Rico and Virgin Islands |
| GEOID09_SAMOA.zip | NAD83 | NAVD88 | GEOID09 grid for American Samoa |
| GEOID12A_ALASKA.zip | NAD83 (2011) | NAVD88 | GEOID12A grids for Alaska |
| GEOID12A_CONUS.zip | NAD83 (2011) | NAVD88 | GEOID12A grids for the conterminous United States |
| GEOID12A_GMNI.zip | NAD83 (MA11) | GUVD04/NMVD03 | GEOID12A grid for Guam and Northern Mariana Islands |
| GEOID12A_HAWAII.zip | NAD83(PA11) | W0 (USGG2012) | GEOID12A grid for Hawaii |
| GEOID12A_PRVI.zip | NAD83 (2011) | PRVD02/VIVD09 | GEOID12A grid for Puerto Rico and Virgin Islands |
| GEOID12A_SAMOA.zip | NAD83 (PA11) | ASVD02 | GEOID12A grid for American Samoa |
| GEOID12B_CONUS.zip | NAD83 (2011) | NAVD88 | GEOID12B grids for the conterminous United States |
| GEOID12B_GMNI.zip | NAD83 (MA11) | GUVD04/NMVD03 | GEOID12B grid for Guam and Northern Mariana Islands |
| GEOID12B_HAWAII.zip | NAD83 (PA11) | W0 (USGG2012) | GEOID12B grid for Hawaii |
| GEOID12B_PRVI.zip | NAD83 (2011) | PRVD02/VIVD09 | GEOID12B grid for Puerto Rico and Virgin Islands |
| GEOID12B_SAMOA.zip | NAD83 (PA11) | ASVD02 | GEOID12A grid for American Samoa |
| GEOID18_CONUS.zip | NAD83 (2011) | NAVD88 | GEOID18 grids for the conterminous United States |
| GEOID18_PRVI.zip | NAD83 (2011) | PRVD02/VIVD09 | GEOID18 grid for Puerto Rico and Virgin Islands |