Cover: Integral and Spherical Harmonic Analyses of the Geo-magnetic Field for 1955.0.

Integral and Spherical Harmonic Analyses of the Geo-magnetic Field for 1955.0.

by Ernest H. Vestine, W. L. Sibley, J. W. Kern, J. L. Carlstedt

Purchase Print Copy

 FormatList Price Price
Add to Cart Paperback75 pages $25.00 $20.00 20% Web Discount

Spherical-harmonic analyses of American and Soviet isomagnetic charts for 1955.0. An integration method is developed from Poisson's integral, and for it, a new surface grid based on a spherical icosahedron's subdivisions. Also discussed are the changes since 1835 in the earth's magnetic moment and dipole axis and an extrapolation of the geomagnetic field into the earth's mantle and below.

This report is part of the RAND Corporation Research memorandum series. The Research Memorandum was a product of the RAND Corporation from 1948 to 1973 that represented working papers meant to report current results of RAND research to appropriate audiences.

This document and trademark(s) contained herein are protected by law. This representation of RAND intellectual property is provided for noncommercial use only. Unauthorized posting of this publication online is prohibited; linking directly to this product page is encouraged. Permission is required from RAND to reproduce, or reuse in another form, any of its research documents for commercial purposes. For information on reprint and reuse permissions, please visit

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.