Anomalous electron temperatures above the South American magnetic field anomaly
Abstract
With an instrument on board the Japanese satellite EXOS-A electron temperatures of more than 1000 K above the "normal" values have been observed in the night-time topside F-region above the geographic region where the total magnetic field is below 20000 nT. Simultaneously enhanced wave emissions on 45 kHz, 2 MHz and 3 MHz were found and an increase in particle precipitation. The observations are described in detail and several mechanism are discussed which can explain the results.
- Publication:
-
Planetary and Space Science
- Pub Date:
- December 1984
- DOI:
- 10.1016/0032-0633(84)90018-7
- Bibcode:
- 1984P&SS...32.1513O
- Keywords:
-
- Electron Energy;
- F Region;
- Geomagnetism;
- Magnetic Anomalies;
- Night Sky;
- Exos-A Satellite;
- Japanese Spacecraft;
- Particle Precipitation;
- Satellite Sounding;
- South America;
- Vertical Distribution;
- Geophysics