Marine Magnetic Anomalies - Martin
Marine Magnetic Anomalies - Martin
Marine Magnetic Anomalies - Martin
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IGRF <br />
Ê International Geomagnetic Reference Field <br />
Ê Description of the earths main magnetic field <br />
Ê Combination of models, satellites and base stations <br />
Ê Base stations have good coverage in Europe, not surprisingly, <br />
sparse over the middle of the ocean <br />
Ê Changes from a year to year basis <br />
Ê Earths field on the order 30,000-‐50,000 nT’s
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