Dissertation / PhD Thesis

FZJ-2016-05505

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Atomic oxygen derived from SCIAMACHY O($^{1}$S) and OH airglow measurements in the Mesopause region

Zhu, Y. (Corresponding author)FZJ*

2016
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich
ISBN: 978-3-95806-178-1

Please use a persistent id in citations: http://hdl.handle.net/2128/12816

Abstract: Atomic oxygen plays a crucial role in the photochemistry and energy balance of the mesopause region. In particular, it is the most abundant reactive species and an important quantity in the derivation of temperature, ozone and other constituents in this part of the atmosphere. This work deals with the derivation of the atomic oxygen abundance from SCIAMACHY (Scanning Imaging Absorption spectro Meter for Atmospheric CHartographY) O($^{1}$S) green line and OH(9-6) band nightglow measurements from 2003 to 2011. There are two different photochemical models available, which describe O($^{1}$S) green line volume emission rates, namely the ETON and Khomich models. Differences between the two models and their implicationon the derivation of atomic oxygen abundance are discussed. Two atomic oxygen datasets are derived from SCIAMACHY O($^{1}$S) greenline measurements at 90–105 km. Analyses are performed on abundance uncertainties owing to rate constants and background atmosphere (i.g.,temperature and total density), as well as abundance differences (up to around 20%) arising from the different model schemes. One photochemical model is used to simulate SCIAMACHY OH(9-6) band measurements and the resulting atomic oxygen abundance is derived at 80–96 km. Induced abundance uncertainties, as a result of uncertainties in rate constants and background atmosphere, are 20% at 80 km, which rise intensively up to 90% at 96 km.

Note: Universität Wuppertal, Diss., 2016

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Contributing Institute(s):

1. Stratosphäre (IEK-7)

Research Program(s):

1. 244 - Composition and dynamics of the upper troposphere and middle atmosphere (POF3-244) (POF3-244)
2. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2016

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Database coverage:
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