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Verlagsausgabe
DOI: 10.5445/IR/1000039137
Veröffentlicht am 06.04.2018
Originalveröffentlichung
DOI: 10.5194/acp-10-7285-2010
Scopus
Zitationen: 12
Web of Science
Zitationen: 12

Energetic particle precipitation in ECHAM5/MESSy - Part 2 : Solar proton events

Baumgaertner, A. J. G.; Jöckel, P.; Riede, H.; Stiller, G.; Funke, B.

Abstract:
The atmospheric chemistry general circulation model ECHAM5/MESSy (EMAC) has been extended by processes that parameterize particle precipitation. Several types of particle precipitation that directly affect NOy and HOx concentrations in the middle atmosphere are accounted for and discussed in a series of papers. In part 1, the EMAC parameterization for NOx produced in the upper atmosphere by low-energy electrons is presented. Here, we discuss production of NOy and HOx associated with Solar Proton Events (SPEs). A submodel that parameterizes the effects of precipitating protons, based on flux measurements by instruments on the IMP or GOES satellites, was added to the EMAC model. Production and transport of NOy and HOx, as well as effects on other chemical species and dynamics during the 2003 Halloween SPEs are presented. Comparisons with MIPAS/ENVISAT measurements of a number of species affected by the SPE are shown and discussed. There is good agreement for NO2, but a severe disagreement is found for N2O similar to other studies. We discuss the effects of an altitude dependence of the N/NO production rate on the N2O and NOy changes d ... mehr


Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung (IMK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2010
Sprache Englisch
Identifikator ISSN: 1680-7316, 1680-7324
URN: urn:nbn:de:swb:90-391375
KITopen ID: 1000039137
HGF-Programm 12.04.03; LK 01
Erschienen in Atmospheric chemistry and physics
Band 10
Heft 15
Seiten 7285-7302
URLs Volltext
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