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Verlagsausgabe
DOI: 10.5445/IR/1000079847
Veröffentlicht am 19.02.2018

NO$_{y}$ production, ozone loss and changes in net radiative heating due to energetic particle precipitation in 2002–2010

Sinnhuber, Miriam; Berger, Uwe; Funke, Bernd; Nieder, Holger; Reddmann, Thomas; Stiller, Gabriele; Versick, Stefan; Clarmann, Thomas von; Wissing, Jan Maik

Abstract:
We analyze the impact of energetic particle precipitation on the stratospheric nitrogen budget, ozone abundances and net radiative heating using results from three global chemistry-climate models considering solar protons and geomagnetic forcing due to auroral or radiation belt electrons. Two of the models cover the atmosphere up to the lower thermosphere, the source region of auroral NO production. Geomagnetic forcing in these models is included by prescribed ionization rates. One model reaches up to about 80 km, and geomagnetic forcing is included by applying an upper boundary condition of auroral NO mixing ratios parameterized as a function of geomagnetic activity. Despite the differences in the implementation of the particle effect, the resulting modeled NOy in the upper mesosphere agrees well between all three models, demonstrating that geomagnetic forcing is represented in a consistent way either by prescribing ionization rates or by prescribing NOy at the model top.

Compared with observations of stratospheric and mesospheric NOy from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument for the y ... mehr


Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1680-7316, 1680-7324
URN: urn:nbn:de:swb:90-798472
KITopen ID: 1000079847
HGF-Programm 12.04.05; LK 01
Erschienen in Atmospheric chemistry and physics
Band 18
Heft 2
Seiten 1115–1147
Projektinformation SOLIC (BMBF, 01LG1219C)
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
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