The reduction, verification and interpretation of MAGSAT magnetic data over Canada
- Walker, J. K.
- Mar 1, 1981.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Coles, R. L., Dawson, E., Vanbeek, G. J., Newitt, L. R., and Haines, G. V.
- hdl.handle.net , Connect to this object online.
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
- Procedures were established to select quiet, least-disturbed MAGSAT data in an effort to study the magnetic field originating in the solid Earth. A preliminary map of scalar field anomalies over Canada and adjacent regions was produced. Data from Fort Churchill magnetic observatory (an auroral zone station) were used in classifying MAGSAT passes as quiet, unsettled, or disturbed. Determinations of long-term quiet levels at Canadian magnetic observatories are being made. For the time interval of each MAGSAT pass, the deviations of the mean hourly values of the magnetic field components are determined from these quiet levels, in particular for Fort Churchill. Primary processing all CHRONINT tapes received to date, involved decoding orbit records, decimating data records, selecting time intervals and latitude intervals, and producing output tapes carrying records with data point time, position and magnetic information. Subsequent processing converts the coordinate system from geocentric to geodetic and removes a reference field.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19820014721.
Accession ID: 82N22595.
- No Copyright.
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