South foehn and ozone in the Eastern Alps: case study and climatological aspects

The ozone situation in the Eastern Alps was investigated during the south foehn period from 4 - 6 May 1997. The event was studied in detail using surface measurements, soundings and aircraft measurements of meteorological and chemical parameters. A numerical simulation with a prognostic meteorological model (MM5) and a chemistry-transport model with 6 km resolution provided additional insight. The case study was supplemented by a climatological evaluation of a three-year data set. The foehn period was preceeded by an ozone episode in the Po Basin south of the Alps. Advection of residual-layer air masses from that area caused a maximum of the ozone concentration in the beginning. Later on, the ozone concentration in the foehn area was determined by a mixture of regional-scale advection from the lower free troposphere and boundary-layer air form the south. The contribution o boundary-layer air was especially strong in the lee of the deep gap formed by the Brenner Pass and visiblein many parameters. The climatological evaluation showed that during south foehn, ozone concentrations are elevated in the foehn area, especially in the valleys and during nighttime where the usual nocturnal minimum is suppressed.
 
Citation proposal
Petra Seibert (Institute of Meteorology) - Hendrik Feldmann (Institute for Meteorology and Climate Research - Troposphere Research) - Bruno Neininger (School of Engineering) - Martin Bäumle (MetAir AG) - Thomas Trickl (IMK - IFU Institute for Meteorology and Climate Research - Atmospheric Environmental Research IMK - IFU Institute for Meteorology and Climate Research - Atmospheric Environmental Research) (2000) . South foehn and ozone in the Eastern Alps: case study and climatological aspects. Elsevier Science Publishing Company https://geoportal.mountaingenius.org/geonetwork/srv/api/records/c6c56245-6e8d-4a1e-b5fd-296b8df95c6f
 

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Date ( Publication )
2000-01-01T00:00:00
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Hardcopy document
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Name
Atmospheric environment 34
Issue identification
9
Page
1379-1394
Other citation details
Atmospheric environment 34 (2000), Nr.9, S.1379-1394
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ISBN
ISSN
1352-2310
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Completed

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http://www.wau.boku.ac.at  

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  +49 72160824742 
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http://www.imk-tro.kit.edu/  

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http://www.zhaw.ch  

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  +41 18216201 
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http://www.metair.ch  

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  +49 882173573 
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http://imk-ifu.fzk.de/  

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http://www.elsevier.com/wps/find/homepage.cws_home  
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Keywords
  • mountain , trajectory , Lidar , aircraft
Keywords
  • mesoscale meteorological model; , chemistry-transport model
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eng
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UTF8
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  • Climatology, meteorology, atmosphere
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Abstract:"South foehn and ozone in the Eastern Alps: case study and climatological aspects".  

Abstract:"South foehn and ozone in the Eastern Alps: case study and climatological aspects".

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"South foehn and ozone in the Eastern Alps: case study and climatological aspects".

Atmospheric environment 34 (2000), Nr.9, S.1379-1394

Seibert, P., Feldmann, H., Neininger, B., Baumle, M., Trickl, T.

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c6c56245-6e8d-4a1e-b5fd-296b8df95c6f   XML
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eng
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UTF8
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2012-02-24T16:38:04
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ISO 19115:2003/19139
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1.0

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