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Temporal variations in the dawn and dusk midlatitude trough position-modeled and measured (ariel 3)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Grebowsky, J. M. Tulunay, Y. K. Chen, A. J. |
| Copyright Year | 1973 |
| Description | The temporal development of the latitudinal position of the 600 km midlatitude electron density trough at dawn and dusk during the period 25-27 May 1967, which encompassed a large magnetic storm, was measured by the RF capacitive probe on the polar orbiting Ariel 3 satellite. The substorm-related changes in the L coordinate of the trough minimum and the point of most rapid change of density gradient on the low latitude side of the trough are similar. Oscillations of the trough position at dusk are in phase with substorm activity whereas movement of the trough at dawn is only apparent with the onset of the large storm. Near dusk there is evidence of structure in the form of a tail-like extension of the plasmasphere at the peak of the storm. Detailed model calculations assuming a spatially invariant equatorial convection E field which varies in step with K sub p index reproduces much of the observed behavior, particularly at dusk, and shows that more than one plasmapause-type transition may be identifiable in the trough region. |
| File Size | 989217 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730015907 |
| Archival Resource Key | ark:/13960/t2x39jq1p |
| Language | English |
| Publisher Date | 1973-05-01 |
| Access Restriction | Open |
| Subject Keyword | Meteorology Radio Frequencies Ariel 3 Satellite Electron Density Concentration Diurnal Variations Capacitors Polar Orbits Plasmapause Magnetic Storms 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 |
