The influence of energetic particles on the chemistry of the middle atmosphere - the MANUXOVA project
The influence of energetic particles on the chemistry of the middle atmosphere - the MANUXOVA project
复制标题
高能粒子对中层大气化学的影响 - MANUXOVA 项目
DOI:
10.1007/978-94-007-4348-9_15
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Vogel
中科院分区:
文献类型:
--
作者:
Reddmann;Konopka;Stiller;Versick; Vogel
Energetic particle precipitation (EPP) during solar and geomagnetic active periods causes chemical disturbances in the lower thermosphere and in the middle atmosphere. Additional HOx(H, OH, HO2) and NOx(N, NO, NO2) are produced in the middle atmosphere, and enhancements of NOxproduced in these events can be transported to the winter stratosphere. These trace species take part in ozone chemistry and, by chemical-radiative coupling, the dynamical state in the middle atmosphere can be altered. There is evidence both from observations and from chemistry-climate models that the EPP induced signal in the middle atmosphere may then propagate into the troposphere. Thus particle precipitation could connect to possible climate effects. The first step in this functional chain is the impact of EPP on the chemical composition in the middle atmosphere and lower thermosphere, and the downward transport in the polar winter middle atmosphere. The general objective of this project was to assess quantitatively the chemical composition change in the middle atmosphere by combining model simulations and observations. The study relays mainly on the observations of the MIPAS instrument on the ENVISAT satellite, whose data set has been expanded in the context of this project by a newly developed retrieval of the gas H2O2, a reservoir for the members of the HOxfamily. Simulations have been carried out with the two chemical transport models CLaMS and KASIMA, which cover chemistry and transport effects in the stratosphere up to the mesosphere/lower thermosphere region. The impact on the global NOy budget and (the resulting) total ozone change are assessed in these studies. In addition, the ion reaction mechanism for the conversion of N2O5to HNO3based on positive ion chemistry was refined. The detailed comparison of model results and observation for the SPE 2003 showed that models can simulate the impact of EPP on ozone chemistry but deficiencies exist for some minor species.
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DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
S. Klee;M. Winnewisser;A. Perrin;J. Flaud
通讯作者:
J. Flaud
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
W. Kouker
通讯作者:
W. Kouker
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
R. L. Zafra;S. Smyshlyaev
通讯作者:
S. Smyshlyaev
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
G. Stiller;G. Tsidu;T. Clarmann;N. Glatthor;M. Höpfner;S. Kellmann;A. Linden;R. Ruhnke;H. Fischer;M. López‐Puertas;B. Funke;S. Gil
通讯作者:
S. Gil
影响因子:
3.1
作者:
J. Grooß;P. Konopka;R. Müller
通讯作者:
R. Müller