Nature of surface flow in the earth's central core : [prepared for National Aeronautics and Space Administration]
Purchase Print Copy
|Add to Cart||Paperback36 pages||$20.00||$16.00 20% Web Discount|
The contribution to secular change made by the nonuniform velocity of the fluid at the surface of the earth's core in the presence of the earth's main field is described. It is shown that contributions to secular change made by temporal changes in the flow pattern of the fluid may be important. Results are discussed qualitatively in relation to dynamo theories of the earth's main field. It is also shown that surface fluid motions that can very nearly reproduce secular change also show features compatible with the generator models of Bullard, Herzenberg, Parker, and Tverskoy. The degree of compatibility found does not allow a preferred choice among these various generators.
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 www.rand.org/pubs/permissions.
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.