Journal article
Time dependent profile retrieval of UV/vis absorbing radicals from balloon-borne limb measurements - A case study on NO2 and O 3
L Kritten, A Butz, M Dorf, T Deutschmann, S Kühl, C Prados-Roman, J Puķite, A Rozanov, R Schofield, K Pfeilsticker
Atmospheric Measurement Techniques | COPERNICUS GESELLSCHAFT MBH | Published : 2010
Abstract
A new "Bayesian" minimization algorithm for the retrieval of the diurnal variation of UV/vis absorbing radicals (O3, NO2, BrO, OClO and HONO) from balloon-borne limb scattered skylight observations is discussed. The method evaluates spectroscopic measurements in combination with radiative transfer calculations to drive a mathematical inversion on a discrete time and height grid. Here, the proposed method is applied to data obtained during two deployments of the mini-DOAS instrument on different balloon payloads in northern Brazil in June 2005. The retrieval is tested by comparing the inferred profiles to in-situ ozone sounding data and to measurements of the ENVISAT/SCIAMACHY satellite instr..
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Awarded by Deutsche Forschungsgemeinschaft (DFG)
Awarded by Deutsches Zentrum fur Luft und Raumfahrt (DLR)
Awarded by European Union (EU)
Awarded by European Space Agency (ESA)
Funding Acknowledgements
Funding for this study came from Deutsche Forschungsgemeinschaft (DFG) (grant Pf 384/5-1), Deutsches Zentrum fur Luft und Raumfahrt (DLR) (contracts BMBF 50EE0017 and VHVI156), the European Union (EU) through the SCOUT-O3 project (contract 505390-GOCE-CT-2004) and the European Space Agency (ESA) (contract 20752/07/I-OL). We thank CNES (Centre National d'Etudes Spatiales, France) and INPE (Instituto Nacional De Pesquisas Espaciais, Brazil) for providing ballooning operations and for setting up the necessary infrastructure. We are grateful to Karla Longo and Saulo R. Freitas (INPE) for assistance given to balloon launches at Timon, Brazil. We thank Pierre Chadoutaud and Alice Belot for providing the ozone sonde data. Thanks to Guido Maucher from MIPAS-B team for allocating the attitude control parameters of the MIPAS-B flight. Thanks to C. Kern for proofreading the manuscript with regard to the English.