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| Titel |
Multispectral information from TANSO-FTS instrument – Part 2: Application to aerosol effect on greenhouse gas retrievals |
| VerfasserIn |
H. Herbin, L. C. Labonnote, P. Dubuisson |
| 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 ; 6, no. 11 ; Nr. 6, no. 11 (2013-11-28), S.3313-3323 |
| Datensatznummer |
250085122
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| Publikation (Nr.) |
 copernicus.org/amt-6-3313-2013.pdf |
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| Zusammenfassung |
| This article is the second in a series of studies investigating the benefits
of multispectral measurements to improve the atmospheric parameter
retrievals. In the first paper, we presented an information content
(IC) analysis from the thermal infrared (TIR) and shortwave infrared (SWIR)
bands of Thermal And Near infrared Sensor for carbon Observations–Fourier Transform Spectrometer (TANSO-FTS) instrument dedicated to greenhouse gas retrieval in
clear sky conditions. This second paper presents the potential of the
spectral synergy from TIR to visible for aerosol characterization, and
their impact on the retrieved CO2 and CH4 column concentrations.
The IC is then used to determine the most informative spectral channels for
the simultaneous retrieval of greenhouse gas total columns and aerosol
parameters. The results show that a channel selection spanning the four
bands can improve the computation time and retrieval accuracy. Therefore,
the spectral synergy allows obtaining up to almost seven different aerosol
parameters, which is comparable to the most informative dedicated
instruments. Moreover, a channel selection from the TIR to visible bands
allows retrieving CO2 and CH4 total columns simultaneously in
the presence of one aerosol layer with a similar accuracy to using all
channels together to retrieve each gas separately in clear sky conditions. |
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