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Initial scalar magnetic anomaly map from MAGSAT
Author(s) -
Langel R. A.,
Phillips J. D.,
Horner R. J.
Publication year - 1982
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl009i004p00269
Subject(s) - anomaly (physics) , magnetic anomaly , latitude , geodesy , geophysics , scalar (mathematics) , geology , geographic coordinate system , altitude (triangle) , physics , mathematics , geometry , condensed matter physics
A scalar magnetic anomaly map between ±50° geographic latitude was derived from MAGSAT data acquired during the November 1979 to June 1980 mission lifetime. Separation of anomaly fields from core and external fields was accomplished utilizing techniques developed for POGO data (Mayhew, 1979; Langel et al., 1980). Comparison with a similar map from POGO data shows that the basic anomaly patterns are essentially reproducible except in a few regions such as the Atlantic and Pacific at latitudes south of −15°. Increased resolution due to a lower measurement altitude is evident in the MAGSAT map.