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Stereo cloud-top heights and cloud fraction retrieval from ATSR-2

Muller, Jan Peter und Denis, Marie-Ange und Dundas, Rowan und Mitchell, Karl und Naud, Catherine und Mannstein, Hermann (2007) Stereo cloud-top heights and cloud fraction retrieval from ATSR-2. International Journal of Remote Sensing, 28 (9), Seiten 1921-1938. DOI: 10.1080/01431160601030975.

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Offizielle URL: http://www.informaworld.com/smpp/content~db=all~content=a778791302~frm=titlelink

Kurzfassung

An operational processing system is described for the automated retrieval of cloud-top heights (CTHs) and amounts from the Gridded Brightness Temperature (GBT) 1 km product derived from the dual view of the Along Track Scanning Radiometer (ATSR-2) instrument onboard the ESA ERS-2 satellite. A new stereo matching algorithm, called M4 is described together with the overall processing chain for retrieving cloud-top heights and amounts. M4 is based on the successful stereo matchers, M2 and M3 which have been in operation with the NASA MISR sensor since March 2000 and which have also been applied to mapping cloud fraction in the polar region using ATSR-2 (Cawkwell and Bamber 2002, Cawkwell et al. 2001). Results in companion papers (Naud et al., Denis et al. 2007) describe the accuracy achieved using this algorithm and detailed scene-by-scene results are available from http:// cloudmap.org under results-.UCL-.ATSR-2 Validation. We assess the impact of cloud-top winds on the accuracy of the retrieved cloud-top heights and conclude that for most middle and lower tropospheric clouds, cloud-top winds will have little, if any, noticeable impact. We show how ATSR-2 cloud-top heights at the different wavelengths (particularly visible compared with thermal IR) can sometimes yield information on multi-layer clouds which is unique to ATSR-2. The processing system has recently been applied to three years of ASTR-2 GBT data and results are shown. These results are available from the British Atmospheric Data Centre (http://badc.nerc.ac.uk/data/list_all_datasets. html?source5data).

Dokumentart:Zeitschriftenbeitrag
Titel:Stereo cloud-top heights and cloud fraction retrieval from ATSR-2
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Muller, Jan PeterUCL, Dorking-Surrey, UK
Denis, Marie-AngeDivision Technologies, Puteaux Cedex, F
Dundas, RowanOffice for National Statistics, London, UK
Mitchell, KarlJet Propulsion Lab., Pasadena, CA, USA
Naud, CatherineNASA, New York, NY, USA
Mannstein, HermannNICHT SPEZIFIZIERT
Datum:2007
Erschienen in:International Journal of Remote Sensing
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:28
DOI :10.1080/01431160601030975
Seitenbereich:Seiten 1921-1938
Status:veröffentlicht
Stichwörter:Image processing, matcher, stereo
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Atmosphären- und Klimaforschung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Fernerkundung der Atmosphäre
Hinterlegt von: Dr.rer.nat. Hermann Mannstein
Hinterlegt am:25 Jun 2007
Letzte Änderung:20 Okt 2014 14:31

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