Waypoint Geoids

Geoids, provided here for your convenience, must be in WPG format to be used with Waypoint software.  The Waypoint Products Group, NovAtel Inc, and any of its distributors will not accept any liability for any errors in the geoids' accuracy or implementation.  If the user is unsure of the results being produced, results should be checked against government programs that perform similar tasks.  Most can be checked via the Internet.  For more information on the use of Geoids within the Waypoint software please see our Geoids FAQ.

World

Australia

Canada

The Canadian geoid data files are now freely available here, thanks to the Geodetic Survey Division of Geomatics Canada, Natural Resources Canada. Please note that these files are copyright 2001, Her Majesty the Queen in Right of Canada. Natural Resources Canada, Geodetic Survey Division. All rights reserved. No Warranty. These digital files are provided on an "as is" basis and Canada makes no guarantees, representations or warranties respecting these files, either expressed or implied, arising by law or otherwise, including but not limited to, effectiveness, completeness, accuracy or fitness for a particular purpose. Any use whatsoever of these digital files shall constitute acceptance of all terms and conditions detailed in the license included with the product documentation.

For more information on all Canadian geoids please see http://webapp.geod.nrcan.gc.ca/geod/data-donnees/geoid.php

Canadian Geodetic Vertical Datum of 2013 (CGVD2013)

CGG2013a is the Canadian gravimetric geoid model of 2013 - Version A. It is the realization of the Canadian Geodetic Vertical Datum of 2013 (CGVD2013). NAD83(CSRS) and ITRF08 versions are available for download in WPG format.

Canadian Geodetic Vertical Datum of 1928 (CGVD28)

CGVD28 is the former vertical datum for Canada. It was replaced by CGVD2013 as of November 2013. However, CGVD28 will co-exist with CGVD2013 during the transition period.

HTv2.0 (Height Transformation version 2.0) is a hybrid geoid model compatible with CGVD28. It is a distorted geoid model to fit as well as possible with the CGVD28 benchmarks published elevations. HTv2.0 is based on CGG2000. A NAD83(CSRS) epoch 1997.0 version, a 2002.0 version and a 2010.0 version are available for download in WPG format.

Metro Vancouver Geoid

HTMVBC000_Abb is a precise geoid model that covers all of Metro Vancouver, Abbotsford and east to Hope. Please see http://geobc.gov.bc.ca/base-mapping/atlas/gsr/downloads/index.html for more information.

Superseded Gravimetric Geoid Models

CGG2013

CGG2013 is the Canadian gravimetric geoid model of 2013. It is the original realization of the Canadian Geodetic Vertical Datum of 2013 (CGVD2013). NAD83(CSRS) and ITRF08 versions are available for download in WPG format.

CGG2010

This geoid model is not compatible with either CGVD2013 or CGVD28. NAD83(CSRS) and ITRF2005 versions are available for download in WPG format

CGG2005

This geoid model is not compatible with either CGVD2013 or CGVD28. NAD83(CSRS) and ITRF2000 versions are available for download in WPG format.

CGG2000

This geoid model is not compatible with either CGVD2013 or CGVD28. NAD83(CSRS) and ITRF versions are available for download in WPG format.

GSD95

This geoid model is not compatible with either CGVD2013 or CGVD28. A NAD83(CSRS) version is available for download in WPG format.

Caribbean

CARIB97 is available but please see http://www.ngs.noaa.gov/GEOID/CARIB97/ for more information as this geoid is not suitable for direct conversion between NAD83 GPS ellipsoid heights and NAVD88 orthometric heights.  It is therefore suggested that this geoid be used in a relative sense as much as possible (i.e. by using orthometric heights at your base station).

Finland

The FIN2000 geoid model can be used to transform ETRS89 ellipsoidal heights to the Finnish N60 height system.  Although the model goes over Finish borders, users are advised not to use the model outside Finland because of rapidly increasing errors.  For more information please see http://coordtrans.fgi.fi/.
 
The FIN2005 geoid model can be used to transform ETRS89 ellipsoidal heights to the Finnish N2000 height system.  Although the model goes over the Finish boards, users are advised not to use the model outside Finland because of rapidly increasing errors.  For more information please see http://coordtrans.fgi.fi/.

France

Germany

Great Britain and Ireland

OSGM02 is available for Great Britain and Ireland, please see
http://www.ordnancesurvey.co.uk/business-and-government/help-and-support/navigation-technology/os-net/surveying.html for more information.

Japan

GSIGEO2011_v2 is a hybrid geoid model of Japan, which was originally made publicly available on April 1, 2014. Please see http://www.gsi.go.jp/common/000099005.pdf for more information.

JGeoid96 was produced using the DAT files provided by GSI. Because WGS84 has shifted over time, this geoid is best used in a relative fashion.

Mexico

  • GGM10 is a gravimetric geoid model for Mexico computed by the General Direction of Geography and Environment at the INEGI. It covers the region from 14° to 33° in latitudes and from 86° to 119° in west longitude, with a grid resolution of 2.5 arc-minutes. It is based on gravity data collected from 1970 up to June 2010.  See http://www.isgeoid.polimi.it/Geoid/America/Mexico/mexico10_g.html for more information.
  • Mexico97 is available but please see http://www.ngs.noaa.gov/GEOID/MEXICO97/ for more information as this geoid is not suitable for direct conversion between NAD83 GPS ellipsoid heights and NAVD88 orthometric heights.  It is therefore suggested that this geoid be used in a relative sense as much as possible (i.e. by using orthometric heights at your base station).

New Zealand

South Korea

KNGeiod18 is based on a combination of terrestrial and airborne gravity data and can be downloaded here. For more information, see https://kb.osu.edu/bitstream/handle/1811/78611/SES_GeodeticScience_Report_507.pdf?sequence=1&isAllowed=y

USA

Geoid Utilities

The Waypoint Product Group provides a collection of geoid utilities which are used to create WPG files from known ASCII or binary file formats.  Please see section 8 of our Geoids FAQ for more information.