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| Titel |
Validation of IASI FORLI carbon monoxide retrievals using FTIR data from NDACC |
| VerfasserIn |
T. Kerzenmacher, B. Dils, N. Kumps, T. Blumenstock, C. Clerbaux, P.-F. Coheur, P. Demoulin, O. García, M. George, D. W. T. Griffith, F. Hase, J. Hadji-Lazaro, D. Hurtmans, N. Jones, E. Mahieu, J. Notholt, C. Paton-Walsh, U. Raffalski, T. Ridder, M. Schneider, C. Servais, M. Mazière |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 5, no. 11 ; Nr. 5, no. 11 (2012-11-16), S.2751-2761 |
| Datensatznummer |
250003173
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| Publikation (Nr.) |
 copernicus.org/amt-5-2751-2012.pdf |
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| Zusammenfassung |
| Carbon monoxide (CO) is retrieved daily and globally from space-borne IASI radiance spectra using the Fast Optimal
Retrievals on Layers for IASI (FORLI) software developed at the Université Libre de Bruxelles (ULB). The IASI CO
total column product for 2008 from the most recent FORLI retrieval version (20100815) is evaluated using correlative CO
profile products retrieved from ground-based solar absorption Fourier transform infrared (FTIR) observations at the following
FTIR spectrometer sites from the Network for the Detection of Atmospheric Composition Change (NDACC): Ny-Ålesund, Kiruna,
Bremen, Jungfraujoch, Izaña and Wollongong. In order to have good statistics for the comparisons, we included all IASI data
from the same day, within a 100 km radius around the ground-based stations. The individual ground-based data were
adjusted to the lowest altitude of the co-located IASI CO profiles. To account for the different vertical resolutions
and sensitivities of the ground-based and satellite measurements, the averaging kernels associated with the various retrieved
products have been used to properly smooth coincident data products. It has been found that the IASI CO total column
products compare well on average with the co-located ground-based FTIR total columns at the selected NDACC sites and that there
is no significant bias for the mean values at all stations. |
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