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| Titel |
Global carbon monoxide vertical distributions from spaceborne high-resolution FTIR nadir measurements |
| VerfasserIn |
B. Barret, S. Turquety, D. Hurtmans, C. Clerbaux, J. Hadji-Lazaro, I. Bey, M. Auvray, P.-F. Coheur |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 5, no. 11 ; Nr. 5, no. 11 (2005-11-02), S.2901-2914 |
| Datensatznummer |
250003136
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| Publikation (Nr.) |
 copernicus.org/acp-5-2901-2005.pdf |
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| Zusammenfassung |
| This paper presents the first global distributions of CO vertical profiles
retrieved from a thermal infrared FTS working in the nadir geometry. It is
based on the exploitation of the high resolution and high quality spectra
measured by the Interferometric Monitor of Greenhouse gases (IMG) which flew
onboard the Japanese ADEOS platform in 1996-1997. The retrievals are
performed with an algorithm based on the Optimal Estimation Method (OEM) and
are characterized in terms of vertical sensitivity and error budget. It is
found that most of the IMG measurements contain between 1.5 and 2.2
independent pieces of information about the vertical distribution of CO from
the lower troposphere to the upper troposphere-lower stratosphere (UTLS). The
retrievals are validated against coincident NOAA/CMDL in situ surface
measurements and NDSC/FTIR total columns measurements. The retrieved global
distributions of CO are also found to be in good agreement with the
distributions modeled by the GEOS-CHEM 3D CTM, highlighting the ability of
IMG to capture the horizontal as well as the vertical structure of the CO
distributions. |
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