Energetic particles in the atmosphere: A Monte-Carlo simulation

Autor(en): Schroeter, J.
Heber, B.
Steinhilber, F.
Kallenrode, M. B.
Herausgeber: Zurbuchen, TH
Smart, DF
BlancoCano, X
Lastovicka, J
Stichwörter: Astronomy & Astrophysics; atmosphere; CHEMISTRY; Engineering; Engineering, Aerospace; Geology; Geosciences, Multidisciplinary; ION; ionization; Meteorology & Atmospheric Sciences; Monte-Carlo simulation; PRECIPITATING ELECTRONS; solar energetic particles; SOLAR PROTON EVENTS
Erscheinungsdatum: 2006
Herausgeber: ELSEVIER SCIENCE LTD
Journal: PARTICLE ACCELERATION, SPACE PLASMA PHYSICS, SOLAR RADIATION AND THE EARTH'S ATMOSPHERE AND CLIMATE
ADVANCES IN SPACE RESEARCH-SERIES
Volumen: 37
Ausgabe: 8
Startseite: 1597
Seitenende: 1601
Zusammenfassung: 
Precipitating solar energetic particles (SEPs) ionize the atmosphere. They produce NO, and HO, which in turn destroy ozone. Here, we present Monte-Carlo simulations of the SEP interaction with the atmosphere. Compared to continuous energy loss models, the Monte-Carlo method leads to a shift of ionization to lower altitudes because secondaries, in particular X-rays produced by electron bremsstrahlung, are considered. In addition, the inclusion of ionization by solar electrons leads to modifications in ion production profiles with the magnitude of the effect depending on the properties of the parent solar event. Implications of our results for atmospheric chemistry modeling are briefly sketched. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.
Beschreibung: 
35th COSPAR Scientific Assembly, Paris, FRANCE, JUL 18-25, 2004
ISSN: 02731177
DOI: 10.1016/j.asr.2005.05.085

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