Small-scale features in the Earth's magnetic field observed by Magsat.
A spherical harmonic expansion to degree and order 29 is derived using a selected magnetically quiet sample of Magsat data. Global maps representing the contribution due to terms of the expansion above n = 13 at 400 km altitude are compared with previously published residual anomaly maps and shown to be similar, even in polar regions. An expansion with such a high degree and order displays all but the sharpest features seen by the satellite and gives a more consistent picture of the high-order field structure at a constant altitude than do component maps derived independently. -Authors
Citation Information
Publication Year | 1984 |
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Title | Small-scale features in the Earth's magnetic field observed by Magsat. |
Authors | J.C. Cain, D.R. Schmitz, L. Muth |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Geophysical Research |
Index ID | 70012831 |
Record Source | USGS Publications Warehouse |