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Magnetic space-based field measurementsSatellite measurements of the geomagnetic field began with the launch of Sputnik 3 in May 1958 and have continued sporadically in the intervening years. A list of spacecraft that have made significant contributions to an understanding of the near-earth geomagnetic field is presented. A new era in near-earth magnetic field measurements began with NASA's launch of Magsat in October 1979. Attention is given to geomagnetic field modeling, crustal magnetic anomaly studies, and investigations of the inner earth. It is concluded that satellite-based magnetic field measurements make global surveys practical for both field modeling and for the mapping of large-scale crustal anomalies. They are the only practical method of accurately modeling the global secular variation. Magsat is providing a significant contribution, both because of the timeliness of the survey and because its vector measurement capability represents an advance in the technology of such measurements.
Document ID
19810061837
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Langel, R. A.
(NASA Goddard Space Flight Center Geophysics Branch, Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
March 1, 1981
Subject Category
Geophysics
Report/Patent Number
AAS PAPER 81-077
Meeting Information
Meeting: Goddard Memorial Symposium on International Space Technical Applications
Location: Arlington, VA
Start Date: March 26, 1981
End Date: March 27, 1981
Sponsors: American Astronautical Society
Accession Number
81A46241
Distribution Limits
Public
Copyright
Other

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