Monochromatic subvisual stable auroral red arcs
Abstract
The origin of stable auroral red arcs is related to the heat flow from the magnetosphere into the ionosphere during magnetic storms. The inflowing energy produces an increase in the temperature of the electrons in the F region. The heated electrons are responsible for the thermal excitation of the atomic oxygen. The mechanisms involved in the production of the heat energy in the magnetosphere are briefly discussed. The observations of monochromatic stable auroral red arcs and simultaneous measurements conducted with ionospheric probes provide information concerning the location of plasmapauses and the energy transferred from the magnetosphere into the ionosphere.
- Publication:
-
Kleinheubacher Berichte
- Pub Date:
- 1975
- Bibcode:
- 1975KlBer..18...93L
- Keywords:
-
- Auroral Arcs;
- Electron Energy;
- F Region;
- Monochromatic Radiation;
- Red Arcs;
- Atomic Spectra;
- Energy Transfer;
- Geomagnetic Latitude;
- Heat Flux;
- Ionospheric Electron Density;
- Ionospheric Sounding;
- Magnetic Storms;
- Magnetospheric Instability;
- Polar Regions;
- Temperature Effects;
- Geophysics