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| Titel |
2-d chemical sampling of a tropopause fold over the Mediterranean: Observations by the IR limb-imager GLORIA and calculations by chemistry-transport models |
| VerfasserIn |
Sören Johansson, Felix Friedl-Vallon, Michael Höpfner, Jörn Ungermann, Bärbel Vogel, Jens-Uwe Grooß, Rolf Müller, Christopher Diekmann, Jennifer Schröter, Roland Ruhnke, Johannes Orphal |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250147922
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| Publikation (Nr.) |
 EGU/EGU2017-12140.pdf |
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| Zusammenfassung |
| We will present results from measurements obtained by the GLORIA (Gimballed Limb
Observer for Radiance Imaging of the Atmosphere) instrument that has been operated
on the Geophysica research aircraft during a field campaign within the European
StratoClim project in the Mediterranean area with basis in Kalamata, Greece, in
September 2016. The flight at an altitude of 18 km (400 K) reached the eastern
Mediterranean south of Cyprus, where air influence by the Asian Monsoon was
sampled.
We will show retrievals of two-dimensional trace-gas distributions derived from GLORIA
observations performed with high spectral resolution. Targeted gases are, amongst others, O3
and HNO3 as stratospheric tracers and PAN and C2H6 as pollution indicators. We will
present an analysis of retrieval performance including diagnostics of spatial resolution and an
estimated error budget.
For a first scientific analysis, comparisons to atmospheric model simulations from two
atmospheric chemistry-transport models, ICON-ART (ICOsahedral Nonhydrostatic model -
Aerosols and Reactive Trace gases) and CLaMS (Chemical Lagrangian Model of the
Stratosphere) will be discussed. Focus will be on comparisons of the distribution of the trace
gases measured by GLORIA to the model tracers indicating the chemical composition as well
as well as the air mass origin.
Acknowledgements: The research leading to these results has received funding from the
European Community’s Seventh Framework Programme (FP7/2007-2013) under grant
agreement n∘ 603557 |
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