Initial vector magnetic anomaly map from Magsat

Details Initial vector magnetic anomaly map from Magsat Initial vector magnetic anomaly map from Magsat

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..273l&link_type=abstract

Geophysical Research Letters, vol. 9, Apr. 1982, p. 273-276.

Other

50

Earth Crust, Geomagnetism, Magnetic Anomalies, Magsat Satellites, Planetary Mapping, Auroral Zones, Magnetic Dipoles, Magnetic Induction, Magnetization, Magnetometers, Remanence, Scalars, Vector Analysis

Scientific paper

Global magnetic component anomaly field maps have been derived from the Magsat vector magnetometer data obtained from November 1979 through May 1980. The amplitude of variations of the components over the maps are between 10 and 15 nT, well above the noise in the data. Averaged data, in 2-by-2 deg blocks, exhibit standard errors of the mean of about 1 nT over most of the X and Z maps, and about 2 nT over most of the Y maps. Errors rise to about twice these amounts near the auroral belts. Most of the anomalies in the component data are consistent with a crustal magnetization model which incorporates dipoles aligned only in the direction of the main field. However, there appear to be some regions which require dipoles aligned in some other direction i.e., remanent magnetization.

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