Cover: Spherical Harmonic Analyses for the Spheroidal Earth.

Spherical Harmonic Analyses for the Spheroidal Earth.

Published 1964

by Anne B. Kahle, J. W. Kern, Ernest H. Vestine

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The assumption that the earth is a true sphere leads to errors in the coefficients derived from most spherical harmonic analyses of the surface geomagnetic field. Presented in this memorandum are two methods for correcting the coefficients. The corrections are shown to be significant.

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