Schüssler, Olena und Loyola, Diego und Doicu, Adrian und Spurr, Robert (2014) Information Content in the Oxygen A-Band for the Retrieval of Macrophysical Cloud Parameters. IEEE Transactions on Geoscience and Remote Sensing, 52 (6), Seiten 3246-3255. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2013.2271986. ISSN 0196-2892.
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Offizielle URL: http://ieeexplore.ieee.org/xpl/abstractMetrics.jsp?arnumber=6563202
Kurzfassung
Current and future satellite sensors provide measurements in and around the oxygen A-band on a global basis. These data are commonly used for the determination of cloud and aerosol properties. In this paper, we assess the information content in the oxygen A-band for the retrieval of macrophysical cloud parameters using precise radiative transfer simulations covering a wide range of geophysical conditions in conjunction with advance inversion techniques. The information content of the signal with respect to the retrieved parameters is analyzed in a stochastic framework using two common criteria: the degrees of freedom for a signal and the Shannon information content. It is found that oxygen A-band measurements with moderate spectral resolution (0.2 nm) provide two pieces of independent information that allow the accurate retrieval of cloud-top height together with either cloud optical thickness or cloud fraction. Additionally, our results confirm previous studies indicating that the retrieval of cloud geometrical thickness (CGT) from single-angle measurements is not reliable in this spectral region. Finally, a sensitivity study shows that the retrieval of macrophysical cloud parameters is slightly sensitive to the uncertainty in the CGT and very sensitive to the uncertainty in the surface albedo.
elib-URL des Eintrags: | https://elib.dlr.de/88947/ | ||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
Titel: | Information Content in the Oxygen A-Band for the Retrieval of Macrophysical Cloud Parameters | ||||||||||||||||||||
Autoren: |
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Datum: | Juni 2014 | ||||||||||||||||||||
Erschienen in: | IEEE Transactions on Geoscience and Remote Sensing | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||
Band: | 52 | ||||||||||||||||||||
DOI: | 10.1109/TGRS.2013.2271986 | ||||||||||||||||||||
Seitenbereich: | Seiten 3246-3255 | ||||||||||||||||||||
Herausgeber: |
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Verlag: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||||
ISSN: | 0196-2892 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | Information content of hyperspectral measurements, oxygen A-band, retrieval of macrophysical cloud parameters | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Atmosphären- und Klimaforschung | ||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Methodik der Fernerkundung > Atmosphärenprozessoren | ||||||||||||||||||||
Hinterlegt von: | Schüssler, Olena | ||||||||||||||||||||
Hinterlegt am: | 28 Apr 2014 09:03 | ||||||||||||||||||||
Letzte Änderung: | 29 Nov 2023 12:59 |
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