Mineral Resources On-Line Spatial Data

Airborne measurement of the earth's magnetic field over all of North America provides gridded data describing the magnetic anomaly caused by variations in earth materials and structure.

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North America	Detailed surveys	Alaska surveys

Show in your GIS using OGC WMS:

http://mrdata.usgs.gov/cgi-bin/mapserv?map=aeromag.map&request=GetCapabilities&service=WMS&version=1.1.1

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Get the entire data set

Area	Magnetic anomaly Residual total intensity	Filtered anomaly high-pass 500km	Residual using satellite baseline	Size
North America	NAmag_origmrg.grd NAmag_origmrg.grd.gi	NAmag_hp500.grd NAmag_hp500.grd.gi	NAmag_CM.grd NAmag_CM.grd.gi	227 MB
Continental US	USmag_origmrg.grd USmag_origmrg.grd.gi	USmag_hp500.grd USmag_hp500.grd.gi	USmag_CM.grd USmag_CM.grd.gi	33 MB

(*.grd format is compatible with Oasis montaj viewer software)

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://tin.er.usgs.gov/magnetic/index.shtml
Page Contact Information: Peter Schweitzer
Page Last Modified: Wednesday, 28-Oct-2009 13:11:26 EDT