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VOOZH | about |
|
VOOZH | about |
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.
Show in a web browser window:
Show in Google Earth or other KML viewer:
NorthAmericanMagneticMap.kml (uncompressed KML file 2k byte)
Show in your GIS using OGC web services:
| Service, version | URL | Capabilities document |
|---|---|---|
| WMS, version 1.3.0 | https://www.sciencebase.gov/arcgis/services/mrt/NAmag_webmerc/MapServer/WMSServer?request=GetCapabilities&service=WMS&version=1.3.0 | Capabilities |
| WMTS, version 1.0.0 | https://mrdata.usgs.gov/mapcache/wmts | Capabilities |
Select detailed aeromagnetic surveys by state or county
| Area | Magnetic anomaly Residual total intensity |
Filtered anomaly high-pass 500km |
Residual using satellite baseline |
Size |
|---|---|---|---|---|
| North America | NAmag_origmrg.zip | NAmag_hp500.zip | NAmag_CM.zip | 316 MB |
| Continental US | USmag_origmrg.zip | USmag_hp500.zip | USmag_CM.zip | 46 MB |
| 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)
| Download | Format | Size |
|---|---|---|
| magnetic.gxf.gz | Grid Exchange Format (Albers NAD27), gzipped | 11 MB |
| magnetic.xyz.gz | XYZ text format (Geographic NAD27), gzipped | 23 MB |
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