A global magnetic anomaly map | Zendy

Regan R. D. | Zendy; Cain J. C. | Zendy; Davis W. M. | Zendy

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A global magnetic anomaly map

Author(s) -

Regan R. D.,

Cain J. C.,

Davis W. M.

Publication year - 1975

Publication title -

journal of geophysical research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/jb080i005p00794

Subject(s) - magnetic anomaly , lithosphere , magnetometer , geology , anomaly (physics) , latitude , longitude , geophysics , geodesy , satellite , altitude (triangle) , tectonics , magnetic field , seismology , physics , geometry , astronomy , condensed matter physics , mathematics , quantum mechanics

A subset of Pogo satellite magnetometer data has been formed that is suitable for analysis of crustal magnetic anomalies. Through the use of a thirteenth‐order field model fit to these data, magnetic residuals have been calculated over the world to latitude limits of ±50°. These residuals, averaged over 1° latitude‐longitude blocks, represent a detailed global magnetic anomaly map derived solely from satellite data. The occurrence of these anomalies on all individual satellite passes independent of local time and their decay as altitude increases imply a definite internal origin. Their wavelength structure and their correlation with known tectonic features further suggest that these anomalies are primarily of geologic origin and have their sources in the lithosphere.

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