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Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH_4, CO_2 and N_2O

Dils, B. and Frankenberg, C. (2006) Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH_4, CO_2 and N_2O. Atmospheric Chemistry and Physics Discussions, 6 (7). pp. 1953-1976. ISSN 1680-7375. doi:10.5194/acp-6-1953-2006.

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Total column amounts of CO, CH_4, CO_2 and N_2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-transform infrared (FTIR) spectrometers. The SCIAMACHY data considered here have been produced by three different retrieval algorithms, WFM-DOAS (version 0.5 for CO and CH_4 and version 0.4 for CO_2 and N_2O), IMAP-DOAS (version 1.1 and 0.9 (for CO)) and IMLM (version 6.3) and cover the January to December 2003 time period. Comparisons have been made for individual data, as well as for monthly averages. To maximize the number of reliable coincidences that satisfy the temporal and spatial collocation criteria, the SCIAMACHY data have been compared with a temporal 3rd order polynomial interpolation of the ground-based data. Particular attention has been given to the question whether SCIAMACHY observes correctly the seasonal and latitudinal variability of the target species. The present results indicate that the individual SCIAMACHY data obtained with the actual versions of the algorithms have been significantly improved, but that the quality requirements, for estimating emissions on regional scales, are not yet met. Nevertheless, possible directions for further algorithm upgrades have been identified which should result in more reliable data products in a near future.

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Frankenberg, C.0000-0002-0546-5857
Additional Information:© 2006 Author(s). Received: 7 March 2005. Published in Atmos. Chem. Phys. Discuss.: 3 May 2005. Revised: 24 August 2005. Accepted: 3 April 2006. Published: 8 June 2006. This work has been performed in the frame of the Envisat AOID126 “Validation of ENVISAT-1 level-2 products related to lower atmosphere O_3 and NO_y”, and the EC project EVERGREEN. It has been possible thanks to financial support from ESA, the European Commission, the Belgian Federal Science Policy Offices, the Bundesministerium für Bildung und Forschung (BMBF) via DLR-Bonn (50EE0027) and PRODEX. We would also like to thank the various organizations supporting the essential infrastructures and facilities needed to perform the ground-based observations used here. The work could not have been carried out without the scientific and technical support from J.-C. Lambert, T. Jacobs, P. Olamba, J. Granville and P. Gérard at the Belgian Institute for Space Aeronomy. Edited by: H. Kelder.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Funding AgencyGrant Number
European Space Agency (ESA)UNSPECIFIED
European CommissionUNSPECIFIED
Belgian Federal Science Policy OfficeUNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)50EE0027
Belgian Institute for Space AeronomyUNSPECIFIED
Deutsches Zentrum für Luft- und Raumfahrt (DLR)UNSPECIFIED
Issue or Number:7
Record Number:CaltechAUTHORS:20150511-132905794
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Official Citation:Dils, B., De Mazière, M., Müller, J. F., Blumenstock, T., Buchwitz, M., de Beek, R., Demoulin, P., Duchatelet, P., Fast, H., Frankenberg, C., Gloudemans, A., Griffith, D., Jones, N., Kerzenmacher, T., Kramer, I., Mahieu, E., Mellqvist, J., Mittermeier, R. L., Notholt, J., Rinsland, C. P., Schrijver, H., Smale, D., Strandberg, A., Straume, A. G., Stremme, W., Strong, K., Sussmann, R., Taylor, J., van den Broek, M., Velazco, V., Wagner, T., Warneke, T., Wiacek, A., and Wood, S.: Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH4, CO2 and N2O, Atmos. Chem. Phys., 6, 1953-1976, doi:10.5194/acp-6-1953-2006, 2006.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57419
Deposited By: Ruth Sustaita
Deposited On:11 May 2015 21:31
Last Modified:10 Nov 2021 21:12

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