| タイトル | Contributions from geomagnetic inverse theory to the study of hydromagnetic conditions near the core-mantle boundary |
| 本文（外部サイト） | http://hdl.handle.net/2060/19940014380 |
| 著者（英） | Backus, George E. |
| 著者所属（英） | Scripps Institution of Oceanography |
| 発行日 | 1991-11-18 |
| 言語 | eng |
| 内容記述 | The Final Report on contributions from geomagnetic inverse theory to the study of hydromagnetic conditions near the core-mantle boundary (CMB) is presented. The original proposal was to study five questions concerning what the surface and satellite magnetic data imply about hydromagnetic and electromagnetic conditions near the CMB. The five questions are: (1) what do the surface and satellite data imply about the geomagnetic field B near the surface of the earth; (2) how does one extrapolate B down through the conducting mantle to the CMB; (3) if B on the CMB is visible, how accurately does it satisfy the frozen-flux approximation; (4) if frozen flux is a good approximation on the CMB, what can be inferred about the fluid velocity v in the upper core; and (5) if v at the CMB is visible, does it suggest any dynamical properties of the core, such as vertical advection, Alfven-inertial waves, link instabilities, or mantle effects. A summary of the research is provided. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 94N18853
NASA-CR-194303
NAS 1.26:194303 |
| 権利 | No Copyright |
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