Magnetic anomaly map of North America

Online link https://mrdata.usgs.gov/magnetic/
Description 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.
Originators Bankey, Viki; Cuevas, Alejandro; Daniels, David L.; Finn, Carol A.; Hernandez, Israel; Hill, Patricia L.; Kucks, Robert P.; Miles, Warner; Pilkington, Mark; Roberts, Carter W.; Roest, Walter; Rystrom, Victoria L.; Shearer, Sarah; Snyder, Stephen L.; Sweeney, Ronald E.; Velez, Julio; Phillips, Jeffrey D.; and Ravat, Dhananjay
Publication U.S. Geological Survey Open-File Report 02-414
Metadata Questions and answers

Related topics

States or counties

Reduced-size (but fairly large) image showing the entire region covered by the data set
Reduced-size (but fairly large) image showing the entire region covered by the data set

Geospatial Web Services (OGC)

Format Content Service URL
WMS Smoothed Aeromagnetic anomaly image https://mrdata.usgs.gov/wms/aeromag-1.3.0.xml

Download data

Format Content Download package
KML Network link to image service for use in KML processing software such as Google Earth https://mrdata.usgs.gov/magnetic/NorthAmericanMagneticMap.kmz
ArcGIS Grid Magnetic anomaly residual total intensity https://mrdata.usgs.gov/magnetic/NAmag_origmrg.zip
ArcGIS Grid Magnetic anomaly filtered high-pass 500km https://mrdata.usgs.gov/magnetic/NAmag_hp500.zip
ArcGIS Grid Magnetic anomaly residual using satellite baseline https://mrdata.usgs.gov/magnetic/NAmag_CM.zip
Geosoft GRD Magnetic anomaly residual total intensity ftp://ftpext.usgs.gov/pub/cr/co/denver/musette/pub/open-file-reports/ofr-02-0414/NAmag_origmrg.grd
Geosoft GRD Magnetic anomaly filtered anomaly high-pass 500km ftp://ftpext.usgs.gov/pub/cr/co/denver/musette/pub/open-file-reports/ofr-02-0414/NAmag_hp500.grd
Geosoft GRD Magnetic anomaly residual using satellite baseline ftp://ftpext.usgs.gov/pub/cr/co/denver/musette/pub/open-file-reports/ofr-02-0414/NAmag_CM.grd