Gravity

Some gravity related useful links

• Gravity equations information page from Geological Survey of Canada: http://gsc.nrcan.gc.ca/gravity/formulae_e.php
• Global Gravity Field Models from International Centre for Global Earth Models: http://icgem.gfz-potsdam.de/ICGEM/modelstab.html
• Global Topography/Bathimetry Models from NOAA's National Geophysical Data Center:
  • ETOPO1: http://www.ngdc.noaa.gov/mgg/global/global.html
  • ETOPO2: http://www.ngdc.noaa.gov/mgg/global/etopo2.html

Instructions for importing these into the GIS can be found on the Marine Science wiki page.

Topo/Bathy data are used in several gravity related equations.

The USGS has a collection of software, however it dates of 1997. This Open-File Report (97-725) is named Potential-Field Geophysical Software for the PC, version 2.2 and supersedes Open-File Report 95-77, A bibliography of some geophysical computer programs, databases, and maps from the U.S. Geological Survey, 1971-1994.

The Colorado School of Mines also has software libraries.