World Magnetic Field Map
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World Magnetic Field Map
The intermagnet programme exists to establish a global network of cooperating digital magnetic observatories, adopting modern standard specifications for. We monitor the earth's magnetic field. Developed by ncei and the british geological survey, with support from the cooperative institute for research in environmental sciences (cires), the wmm is a.
Sweeney, ronald e., velez, julio, phillips, j.d., and ravat, d.k.a., 2002, digital data grids for the magnetic anomaly map of north america: Browse imagery and contour maps for main field and secular change. The geomagnetic equator is indicated by a dashed line.
The magnetic north pole was discovered by james clerk ross in 1831 in canada.
Click the map to show data near to the point you clicked. At the midpoint between the poles the strength is half of its value at the poles. The magnetic activity maps show the range of the magnetic variation in each hour at intermagnet observatories around the world. Inferences from crustal magnetic fields maps such as these, interpreted in conjunction with other information, can help delineate geologic provinces, located impact structures, dikes, faults, and other geologic entities that have a magnetic contrast with their surroundings.
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