Atmospheric Chemistry and Physics
www.atmos-chem-phys.net
1680-7316
1680-7324
7
18
2007
10.5194/acp-7-4763-2007
http://www.atmos-chem-phys.net/7/4763/2007/
http://www.atmos-chem-phys.net/7/4763/2007/acp-7-4763-2007.html
http://www.atmos-chem-phys.net/7/4763/2007/acp-7-4763-2007.pdf
4763
4779
2007-09-20
Comparison of the inversion algorithms applied to the ozone vertical profile retrieval from SCIAMACHY limb measurements
A. Rozanov
alexei.rozanov@iup.physik.uni-bremen.de
K.-U. Eichmann
C. von Savigny
H. Bovensmann
J. P. Burrows
A. von Bargen
A. Doicu
S. Hilgers
S. Godin-Beekmann
T. Leblanc
I. S. McDermid
Institute of Environmental Physics (IUP), University of Bremen, Bremen, Germany
German Aerospace Center (DLR) Oberpfaffenhofen, Oberpfaffenhofen, Germany
Service d'Aéronomie – CNRS, Institut Pierre Simon Laplace, Paris, France
Jet Propulsion Laboratory, Table Mountain Facility, Wrightwood, CA 92397-0367, USA
This paper is devoted to an intercomparison of ozone vertical profiles
retrieved from the measurements of scattered solar radiation performed by the
SCIAMACHY instrument in the limb viewing geometry. Three different inversion
algorithms including the prototype of the operational Level 1 to 2 processor
to be operated by the European Space Agency are considered. Unlike usual
validation studies, this comparison removes the uncertainties
arising when comparing measurements made by different instruments
probing slightly different air masses and focuses on the uncertainties
specific to the modeling-retrieval problem only. The intercomparison was
performed for 5 selected orbits of SCIAMACHY showing a
good overall agreement of the results in the middle stratosphere, whereas
considerable discrepancies were identified in the lower stratosphere and
upper troposphere altitude region. Additionally, comparisons with
ground-based lidar measurements are shown for selected profiles demonstrating
an overall correctness of the retrievals.
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