elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

A strong ice cloud event as seen by a microwave satellite sensor: Simulations and Observations

Sreerekha, T.R. und Buehler, Stefan A. und O'Keeffe, Una und Doherty, Amy und Emde, Claudia und John, Viju O. (2008) A strong ice cloud event as seen by a microwave satellite sensor: Simulations and Observations. Journal of Quantitative Spectroscopy and Radiative Transfer, 109, Seiten 1705-1718. DOI: 10.1016/j.jqsrt.2007.12.023.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Offizielle URL: http://www.elsevier.com/wps/find/journaldescription.cws_home/272/description#description

Kurzfassung

In this article, brightness temperatures observed by channels of the Advanced Microwave Sounding Unit-B (AMSU-B) instrument are compared to those simulated by a radiative transfer model, which can take into account the multiple scattering due to ice particles by using a discrete ordinate iterative solution method. The input fields, namely, the pressure, temperature, humidity, and cloud water content are taken from the short range forecast from the Met Office mesoscale model (UKMES). The comparison was made for a case study on the 25 January 2002 when a frontal system associated with significant cloud was present over the UK. It is demonstrated that liquid clouds have maximum impact on channel 16 of AMSU whereas ice clouds have maximum impact on channel 20. The main uncertainty for simulating microwave radiances is the assumptions about microphysical properties, such as size distribution, shape and orientation of the cloud particles, which are not known in the mesoscale model. The article examines the impact of these parameters on the cloud signal. The polarisation signal due to oriented ice particles at these frequencies is also discussed.

Dokumentart:Zeitschriftenbeitrag
Titel:A strong ice cloud event as seen by a microwave satellite sensor: Simulations and Observations
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Sreerekha, T.R.The Met Office, UK
Buehler, Stefan A.Lulea Univ. of Technology, S
O'Keeffe, UnaThe Met Office, UK
Doherty, AmyThe Met Office, UK
Emde, ClaudiaNICHT SPEZIFIZIERT
John, Viju O.Univ. of Miami, FL, USA
Datum:2008
Erschienen in:Journal of Quantitative Spectroscopy and Radiative Transfer
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:109
DOI :10.1016/j.jqsrt.2007.12.023
Seitenbereich:Seiten 1705-1718
Status:veröffentlicht
Stichwörter:Clouds; Scattering; Microwave Radiative transfer; Polarisation
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W - keine Zuordnung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):W - keine Zuordnung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Fernerkundung der Atmosphäre
Hinterlegt von: Dr.rer.nat. Claudia Emde
Hinterlegt am:04 Dez 2008
Letzte Änderung:20 Okt 2014 14:32

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.