Canada - Grid Spacing: 2km - Gravity - Isostatic Residual
The Canadian Gravity Anomaly Data Base consists of approximately 660 000 gravity observations, including 165 000 on land, acquired between 1944 and the present. The data spacing ranges from less than 1 km to over 20 km, with an average spacing between 5 and 10 km. All measurements were reduced to the IGSN71 datum. Theoretical gravity values were calculated from the Geodetic Reference System 1967 (GRS67) gravity formula. Bouguer anomalies were calculated using a vertical gravity gradient of 0.3086 mGal·m-1 and a crustal density of 2 670 kg·m-3.
- Publisher - Current Organization Name: Natural Resources Canada
- Licence: Open Government Licence - Canada
Data and Resources
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Canadian Airborne Geophysical Database (CAGDB) English Web serviceWMSEnglish web_service WMS
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Canadian Airborne Geophysical Database (CAGDB) English Web serviceWMSFrench web_service WMS
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Canada 2 km - GRAV - Isostatic ResidualZIPEnglish French application ZIP
Contact Information
Delivery Point: Physical; 615; Booth Street; ; Room 235
City: Ottawa
Administrative Area: Ontario
Postal Code: K1A 0E9
Country: Canada
Electronic Mail Address: infogdc@NRCan.gc.ca