Canada - Grid Spacing: 2km - Gravity - Free Air

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.

Simple

Date ( RI_367 )
2010-09-10
Date ( RI_366 )
2010-09-10
RI_413
  Government of Canada; Natural Resources Canada;Lands and Minerals Sector / Geological Survey of Canada / Central
Physical; 615; Booth Street; ; Room 235 , Ottawa , Ontario , K1A 0E9 , Canada
1-613-995-5326
Presentation form
profileDigital; profilNumérique RI_395
Name
Canadian Airborne Geophysical Database (CAGDB)
Issue identification
Canada - Grid Spacing: 2km - Airborne Gravity - Free Air
Status
completed; complété RI_593
Maintenance and update frequency
unknown; inconnu RI_543
Keywords ( RI_528 )
  • gravity surveys
  • gravity surveys
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Earth sciences
  • Geophysics
Use limitation
© Department of Natural Resources Canada. All rights reserved.
Use constraints
copyright; droitAuteur RI_602
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
grid; grille RI_636
Spatial representation type
textTable; texteTable RI_637
Metadata language
eng; CAN
Metadata language
fra; CAN
Topic category
  • Geoscientific information

Extent

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N
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E
W
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Begin date
1926-04-26
End date
2017-09-28
Reference system identifier
http://www.epsg-registry.org / EPSG:3978 / 8.7.4
Distribution format
  • WMS ( 1.3.0 )

RI_412
  Government of Canada; Natural Resources Canada;Lands and Minerals Sector / Geological Survey of Canada / Central
OnLine resource
Canadian Airborne Geophysical Database (CAGDB) English Web service ( OGC:WMS )

Web Service;WMS;eng

OnLine resource
Canadian Airborne Geophysical Database (CAGDB) English Web service ( OGC:WMS )

Web Service;WMS;fra

OnLine resource
Canada 2 km - GRAV - Free Air ( HTTP )

Application;ZIP;eng,fra

File identifier
87602d9b-b566-5881-9e79-249080af8be2 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2021-06-18T16:07:37
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Natural Resources Canada;Lands and Minerals Sector / Geological Survey of Canada / Central
Physical; 615; Booth Street; ; Room 224A , Ottawa , Ontario , K1A 0E9 , Canada
1-613-992-6408
 
 

Overviews

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Spatial extent

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Keywords


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