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Contributions from geomagnetic inverse theory to the study of hydromagnetic conditions near the core-mantle boundary
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Backus, George E. |
| Copyright Year | 1991 |
| Description | 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. |
| File Size | 279039 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940014380 |
| Archival Resource Key | ark:/13960/t0gv0hd9p |
| Language | English |
| Publisher Date | 1991-11-18 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Core-mantle Boundary Geomagnetism Advection Magnetohydrodynamics Planetary Magnetic Fields Earth Mantle Earth Core Boundaries Boundary Layers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
