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UP: Fachverband Umweltphysik
UP 4: Postersession
UP 4.6: Poster
Tuesday, February 26, 2013, 17:15–18:30, Poster EG
Decadal trends in ozone, bromine monoxide, and nitrogen dioxide from SCIAMACHY limb measurements and multi-instrument comparisons — •Claus Gebhardt1, Alexei Rozanov1, René Hommel1, Mark Weber1, John P. Burrows1, Doug Degenstein2, Lucien Froidevaux3, and Anne M. Thompson4 — 1University of Bremen, Institute of Environmental Physics, Bremen, Germany — 2University of Saskatchewan, Saskatoon, Canada — 3Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA — 4Department of Meteorology, Pennsylvania State University, Pennsylvania, USA
The SCIAMACHY/ENVISAT satellite instrument (2002-12) has monitored Earth’ atmosphere globally for almost one decade. In its limb viewing geometry, it recorded vertical profiles of the atmospheric limb scatter. O3, BRO, and NO2 are among the retrieved species. Their vertical profiles are obtained in 1 km altitude steps. Longterm changes as well as periodically varying features are present in their time series. The longterm changes are statistically described by trends. The trend profiles of SCIAMACHY limb ozone extend throughout the stratosphere.
In our talk, we compare trend profiles of stratospheric O3 from SCIAMACHY to other measurements ranging from contemporary satellite instruments to different measurement techniques. We further present trend profiles of BRO and NO2. Being crosslinked through chemical reactions, there are relations between the trend profiles of O3, BRO, and NO2.