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Remote sensing of inhomogeneous clouds with MSG/SEVIRI

Zinner, Tobias and Bugliaro, Luca and Mayer, Bernhard (2006) Remote sensing of inhomogeneous clouds with MSG/SEVIRI. In: The 2005 EUMETSAT Meteorological Satellite Conference, pp. 419-425. 2005 EUMETSAT Meteorological Satellite Conference, 2005-09-19 - 2005-09-23, Dubrovnik, (KRO). ISBN 92-9110-073-0. ISSN 1011-3932

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Official URL: http://www.eumetsat.int/

Abstract

Clouds are inherently inhomogeneous on all spatial and temporal scales. The neglect of this fact in standard remote sensing techniques introduces uncertainties in form of biases and noise. The quantification of deviations caused by cloud inhomogeneity and possible solutions are of major concern, considering the potential of remote sensing for a global characterisation of clouds and their interaction with the radiation field. We found that, on average, reliable cloud properties are retrieved by a standard method from MSG/SEVIRI data for overcast pixels. However, larger systematic errors occur for partly cloudy pixels. For individual pixels the uncertainties can be considerable. The high resolution visible (HRV) channel of SEVIRI has the capability to improve the normal/low resolution situation, because it provides some sub-pixel inhomogeneity information. In a EUMETSAT case study on the quantitative exploitation of the HRV in synergy with low resolution spectral channels we studied possible improvements for cloud detection and microphysical property retrievals. The accuracy of the derived optical thickness and effective radius were significantly improved when HRV sub-pixel information was included. Future work is planned on more general cloud situations derived from numerical weather model data.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Remote sensing of inhomogeneous clouds with MSG/SEVIRI
Authors:
AuthorsInstitution or Email of Authors
Zinner, TobiasUNSPECIFIED
Bugliaro, LucaUNSPECIFIED
Mayer, BernhardUNSPECIFIED
Date:February 2006
Journal or Publication Title:The 2005 EUMETSAT Meteorological Satellite Conference
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 419-425
Editors:
EditorsEmail
EUMETSAT, UNSPECIFIED
ISSN:1011-3932
ISBN:92-9110-073-0
Status:Published
Keywords:3D radiative transfer, cloud, independent pixel error, plane-parallel error
Event Title:2005 EUMETSAT Meteorological Satellite Conference
Event Location:Dubrovnik, (KRO)
Event Type:international Conference
Event Dates:2005-09-19 - 2005-09-23
Organizer:EUMETSAT
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt Partikel und Zirren II (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Remote Sensing
Deposited By: Dr.rer.nat. Tobias Zinner
Deposited On:19 Apr 2006
Last Modified:27 Apr 2009 04:43

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