NRCan's Geodetic Survey Division is responsible for maintaining the Canadian Spatial Reference System (CSRS) which provides fundamental reference values for latitude, longitude, height and gravity, including earth's orientation parameters and rotation rate in space, as the foundation for the nation's evolving positioning and navigation activities. 

For more information, please contact our office.

Height Modernisation

NRCan will release a new vertical reference system for Canada in November 2013: the Canadian Geodetic Vertical Datum of 2013 (CGVD2013). This new datum is superseding the Canadian Geodetic Vertical datum of 1928 (CGVD28), which was adopted by an Order in Council in 1935.

The new vertical datum will be realized by the geoid model CGG2013. The levelling networks will be readjusted in conformity with the new height system to propagate new elevations at the benchmarks. Note: The new heights at the benchmarks may not be accurate for certain regions as the readjustment will be processing legacy data. NRCan is not maintaining the federal levelling networks anymore.

The PowerPoint presentation and text (English and French) of the Webinars on Height Modernisation are available for download from the following FTP link: download link. Visit our site regularly to get the dates of the next webinars on Height Modernization and tools.