Article (Scientific journals)
Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH4, CO2 and N2O
Dils, Bart; De Mazière, Martine; Muller, Jean-François et al.
2006In Atmospheric Chemistry and Physics, 6, p. 1953-1976
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Keywords :
SCIAMACHY; validation; remote sensing; atmospheric composition
Abstract :
[en] Total column amounts of CO, CH4, CO2 and N2O 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 CH4 and version 0.4 for CO2 and N2O), 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.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Dils, Bart;  Belgian Institute for Space Aeronomy
De Mazière, Martine;  Belgian Institute for Space Aeronomy
Muller, Jean-François;  Belgian Institute for Space Aeronomy
Blumenstock, Thomas;  Forschungszentrum Karlsruhe and University Karlsruhe
Buchwitz, M.;  University of Bremen > Institute of Environmental Physics
de Beek, R.
Demoulin, Philippe ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Duchatelet, Pierre ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Fast, Hans
Frankenberg, Christian
Gloudemans, A.
Griffith, David
Jones, Nicholas
Kerzenmacher, Tobias
Kramer, Isabell
Mahieu, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Mellqvist, Johan
Mittermeier, Richard L.
Notholt, Justus
Rinsland, Curtis P.
Schrijver, H.
Smale, Dan
Strandberg, Anders
Straume, A. G.
Stremme, Wolfgang
Strong, Kimberley
Sussmann, Ralf
Taylor, Jeffrey
van den Broek, M.
Velazco, Voltaire
Wagner, T.
Warneke, Thorsten
Wiacek, A.
Wood, Stephen
More authors (24 more) Less
Language :
English
Title :
Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH4, CO2 and N2O
Publication date :
08 June 2006
Journal title :
Atmospheric Chemistry and Physics
ISSN :
1680-7316
eISSN :
1680-7324
Publisher :
European Geosciences Union, Katlenburg-Lindau, Germany
Volume :
6
Pages :
1953-1976
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 12 December 2008

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