www.atmos-meas-tech.net/4/1319/2011/ doi:10.5194/amt-4-1319-2011 © Author(s) 2011. This work is distributed under the Creative Commons Attribution 3.0 License. BrO vertical distributions from SCIAMACHY limb measurements: comparison of algorithms and retrieval results 1Institute of Environmental Physics (IUP), University of Bremen, Bremen, Germany 2Max Planck Institute for Chemistry, Mainz, Germany 3Institute of Environmental Physics, University of Heidelberg, Heidelberg, Germany 4German Aerospace Center (DLR) Oberpfaffenhofen, Oberpfaffenhofen, Germany 5LATMOS, CNRS, UVSQ, Guyancourt, France 6Belgian Institute for Space Aeronomy (IASB-BIRA), Brussels, Belgium 7Jülich Research Center, Jülich, Germany 8Environment Canada, Toronto, Canada 9Meteorological Institute, Free University of Berlin, Berlin, Germany *now at: Senatsverwaltung für Gesundheit, Umwelt und Verbraucherschutz, Berlin, Germany Abstract. This study presents two scientific and one operational retrieval algorithms used to obtain vertical distributions of bromine monoxide (BrO) from observations of the scattered solar light performed by the SCIAMACHY instrument in limb viewing geometry. The study begins with a discussion of the theoretical basis of all algorithms followed by an investigation of the retrieval sensitivity. Simulations with three different radiative transfer models allow us to analyze influence of the forward model implementation upon the retrieval results. By means of synthetic retrievals we analyze major sources of uncertainties in the resulting BrO profiles such as different BrO cross sections, their temperature dependence, and stratospheric aerosols. Finally, the reliability of SCIAMACHY BrO profile retrievals is demonstrated comparing results from different algorithms to each other and to balloon-borne observations. Final Revised Paper (PDF, 1871 KB) Discussion Paper (AMTD) Special Issue Citation: Rozanov, A., Kühl, S., Doicu, A., McLinden, C., Puķīte, J., Bovensmann, H., Burrows, J. P., Deutschmann, T., Dorf, M., Goutail, F., Grunow, K., Hendrick, F., von Hobe, M., Hrechanyy, S., Lichtenberg, G., Pfeilsticker, K., Pommereau, J. P., Van Roozendael, M., Stroh, F., and Wagner, T.: BrO vertical distributions from SCIAMACHY limb measurements: comparison of algorithms and retrieval results, Atmos. Meas. Tech., 4, 1319-1359, doi:10.5194/amt-4-1319-2011, 2011. Bibtex EndNote Reference Manager XML |
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