Knowledgebase
World Geoid Models Download
Posted by John Coldrick on 19 September 2011 02:23 PM

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Introduction

A geoid is described as an equipotential surface that best equates to mean sea level of the earth. Geoid models are used to shift ellipsoidal heights (heights derived from GPS) to orthometric heights (heights referenced to mean sea level).

Instructions for FieldGenius

FieldGenius requires a geoid file for your location in order to store orthometric (geoid) elevations. The file should be copied into:

On a mobile device:

<location varies>\MicroSurvey FieldGenius\Programs\Mapping\

On a Tablet computer running Windows 7/8/10 or newer:

C:\ProgramData\MicroSurvey\FieldGenius\<your version>\Mapping\

Note: the "ProgramData" folder is hidden by default. (Click Here to learn how to show hidden folders)

On a Tablet computer running Windows XP or older:

C:\Documents and Settings\All Users\Application Data\MicroSurvey\FieldGenius\<your version>\Mapping\

Note: the "Application Data" folder is hidden by default.

To use the Geoid Models in FieldGenius:

  • From the Main Menu | Settings | Coordinate Systems change the Vertical Systems field to the desired .byn file
  • Your GPS derived coordinates will now have orthometric heights derived from the selected geoid model.

Instructions for MicroSurvey CAD

MicroSurvey CAD, incad and embeddedCAD 2014 and newer support using geoid files for transforming orthometric (geoid) elevations. The geoid file(s) for your region should be copied into:

On Windows Vista/7/8/10 or newer:

C:\ProgramData\MicroSurvey\(Product Name)\yyyy\mscad\Mapping\

Note: the "ProgramData" folder is hidden by default. (Click Here to learn how to show hidden folders)

On Windows XP or earlier:

C:\Documents and Settings\All Users\Application Data\MicroSurvey\(Product Name)\yyyy\mscad\Mapping\

Note: the "Application Data" folder is hidden by default.

Instructions for STAR*NET

MicroSurvey STAR*NET supports using geoid files for transforming orthometric (geoid) elevations.

MicroSurvey STAR*NET 7 (and earlier) requires that you convert the geoid file(s) into STAR*NET's "neutral" .ght format, using the free STAR*Geoid utility.  Not all geoid formats are supported, please refer to your STAR*NET product manual for additional details and instructions.

MicroSurvey STAR*NET V8 and newer allows you to copy the the older .ght, .bin or .byn geoid file(s) for your region directly into the following folder, and then can be selected on the Modeling tab of your Project Options:

On Windows Vista/7/8/10 or newer:

C:\ProgramData\MicroSurvey\StarNet\V8\Mapping\

Note: the "ProgramData" folder is hidden by default. (Click Here to learn how to show hidden folders)

On Windows XP or earlier:

C:\Documents and Settings\All Users\Application Data\MicroSurvey\StarNet\V8\Mapping\

Note: the "Application Data" folder is hidden by default.

Country-specific Geoid Models

Below is a list of which geoid models we support. If you require a geoid model not currently listed below, please contact MicroSurvey.

MicroSurvey continues to add additional coordinate systems and geoid models whenever users require them.

Click on the Country's name to access its downloads page:

Argentina GEOIDE-Ar16
Australia AusGeoid09
Belgium hBG03
Canada
Caspian Sea - BETA
Croatia HRG2009, Trst
Czech Republic S-JTSK
Denmark DVR90
France RAF98 or RAF09
Georgia QM2012
Greece Metrica (Unofficial)
Hungary 2009S or VITEL2014
Ireland OSGM02 or OSGM15
Northern Ireland OSGM02 or OSGM15
Israel ILUM 1.2
Japan Gsigeo2011_ver1
Korea
Korea KNGeoid13 - BETA or KNGeoid14 - BETA
Latvia LatviaLV98 or Latvia2014
Lithuania
Malaysia
Mexico GGM06 or GGM10
Netherlands nlgeo04
New Zealand NZGeoid09 or NZGeoid2016
Norway
Norway NN2000
Portugal PT08
Poland 2011/2014
Senegal GGS12v1
Romania
Singapore SGeoid09
Slovakia DVRM
Slovenia SLOG2000
Spain EGM08 REDNAP
South Africa SA Geoid2010
Sweden SWEN08
Switzerland CHgeo04
United Kingdom OSGM02 or OSGM15
United States of America GEOID12B and others

EGM08 Geoid Model Cutouts

Below is a list of EGM08 cutouts we have created. If you require a regional cutout not currently listed below, please contact MicroSurvey.

MicroSurvey continues to add additional coordinate systems and geoid models whenever users require them.

Click on the Country/Region name to download the BYN file or access a download page:

Click here for a map of available EGM08 Cutouts

The Continent of Africa
Afghanistan / Pakistan
Argentina
Azerbaijan
Balkans
Baltic
Belarus
Belgium
Bolivia / Paraguay
Caribbean
Central America
Chile
Colombia
Costa Rica
Dominican Republic / Haiti
Ecuador
Gabon
Germany
Greece
Guatemala
Hungary
India
IndoChina Region (Myanmar - Thailand - Laos - Cambodia - Vietnam)
Indonesia
Iran
Ireland
Israel
Italy
Kazakhstan
Kenya
Lebanon
Mongolia
Mozambique
Myanmar
Nicaragua
Panama
Peru
Philippines
Poland
Qatar
Russia
Saudi Arabia
Senegal
South America 1 (Venezuela - Guyana - Suriname - French Guiana)
Sri Lanka
Turkey
Uganda

World Geoid Models

EGM96
EGM2008

See also: Grid Shift Downloads

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