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Type: KMZ Files
Modified: 6/25/2009
Size: 9.57 Mb
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The International Geomagnetic Reference Field Model from NOAA Includes: Magnetic Declination (D), Inclination (I), Horizontal intensity (H), Vertical intensity (Z), and Total Intensity (F) |
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Enhanced Magnetic Model 720
The study of geomagnetism is one of the oldest of the geophysical sciences. Since before the publication of William Gilbert's De Magnete in 1600, people have tried to unravel the mysteries of Earth's magnetic field. The geomagnetic fields have been observed and used from ancient times. Modern uses of geomagnetic data include navigation and mineral exploration. The National Geophysical Data Center maintains archives of geomagnetic data to further the understanding of Earth magnetism and the Sun-Earth environment. Data at NGDC include surface, ocean, airborne and satellite measurements, as well as models of the main field and its secular change, and models of the Space - Earth environment. Data on Earth's ancient magnetic field are available from archeomagnetic and paleomagnetic measurements.
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