HR: 0830h
AN: SA41B-0438    [PDF]
TI: Upper Atmosphere Temperature Effects of Energetic Electron Precipitation During Substorms
AU: * Nesse, H
EM: hilde.nesse@fi.uib.no
AF: University of Bergen, Department of Physics, Allegaten 55, Bergen, 5007 Norway
AU: Stadsnes, J
EM: johan.stadsnes@fi.uib.no
AF: University of Bergen, Department of Physics, Allegaten 55, Bergen, 5007 Norway
AU: Mertens, C J
EM: c.j.mertens@larc.nasa.gov
AF: NASA Langley Research Center, 21 Langley Blvd., Mail Stop 401B, Hampton, VA 23681-2199 United States
AU: Saetre, C
EM: camilla.satre@fi.uib.no
AF: University of Bergen, Department of Physics, Allegaten 55, Bergen, 5007 Norway
AU: Aasnes, A
EM: arne.asnes@fi.uib.no
AF: University of Bergen, Department of Physics, Allegaten 55, Bergen, 5007 Norway
AU: Aksnes, A
EM: arve.aksnes@fi.uib.no
AF: University of Bergen, Department of Physics, Allegaten 55, Bergen, 5007 Norway
AU: Ostgaard, N
EM: nikost@ssl.berkeley.edu
AF: Space Sciences Laboratory, University of California, Berkeley, Centennial Drive at Grizzly Peak Blvd., Berkeley, CA 94720-7450 United States
AB: From X-ray measurements with PIXIE on the Polar satellite we infer the global distribution of precipitating energetic electrons. These electrons ionize, dissociate, and excite atmospheric species, and initiate chemical and physical processes that lead to neutral gas heating in the thermosphere. The particle precipitation may also cause temperature changes in the upper mesosphere. Neutral gas temperatures are measured by the SABER instrument on the TIMED satellite. We study the effects of energetic electron precipitation on the temperature in the lower thermosphere and upper mesosphere during a substorm event on 30 October 2002.
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0342 Middle atmosphere--energy deposition
DE: 0358 Thermosphere--energy deposition
DE: 2407 Auroral ionosphere (2704)
DE: 2455 Particle precipitation
SC: SPA - Aeronomy [SA]
MN: 2003 Fall Meeting