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The reduction, verification and interpretation of Magsat magnetic data over Canada

Author
Vanbeek, G. J.
Published
Jul 1, 1981.
Physical Description
1 electronic document
Additional Creators
Newitt, L. R., Dawson, E., Haines, G. V., Coles, R. L., and Walker, J. K.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
Magnetic anomalies of lithospheric origin are weak at Magsat altitudes (20 to 30 nT at most), and are easily masked by much larger effects caused by field-aligned and other currents at high latitudes. Most of Canada lies under the influence of ionospheric currents in the auroral zone and polar cap. A more refined selection of quiet Magsat data allowed a revised scalar magnetic anomaly map of the whole region north of about 40 deg N latitude. Very preliminary vector anomaly maps and absolute vector component maps were derived. The scalar magnitudes show great promise for mapping the total force and anomaly fields. The Z vector data also appear to be good. The horizontal X and Y vector data are seriously contaminated with external fields and maybe other effects.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19820007611.
Accession ID: 82N15484.
NASA-CR-164904.
E82-10006.
PR-3.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15717255