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SAR Derived Fields of Mesoscale Cyclones

Brusch, Stephan and Lehner, Susanne and Reppucci, Antonio (2008) SAR Derived Fields of Mesoscale Cyclones. In: Proceedings of IGARSS'08 (2), II-489-II-492. IGARSS 2008, 2008-07-06 - 2008-07-11, Boston, Massachusetts (USA). ISBN 978-1-4244-2807-6. ISSN DOI: 10.1109/IGARSS.2008.4779035

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Abstract

In this study we show how satellite images taken by space-borne radar sensors can be used to determine mesoscale high resolution wind fields in synergy with cloud parameters from optical data. The aim of this study is to use Synthetic Aperture Radar (SAR) and Medium Resolution Imaging Spectrometer (MERIS) onboard the ENVIronmental SATellite (ENVISAT) in synergy to analyse severe weather systems. We investigated the fine scale structure of a severe weather case on Nov 1, 2006 over the North Sea using satellite data. The satellite data are compared with numerical model results of the German Weather Service "Lokal Modell", LM and the High Resolution Limited Area Model, HIRLAM. LM and HIRLAM show differences in mesoscale turbulent behaviour. Maximum wind speeds of up to 25 m/s are measured by SAR and are confirmed by the models. Significant differences are observed in the location of the maxima. Due to the high resolution ENVISAT ASAR measurements provide very detailed information on small scale atmospheric features, which seem to be not well captured by the analyzed numerical models in particular in coastal areas.

Document Type:Conference or Workshop Item (Speech)
Title:SAR Derived Fields of Mesoscale Cyclones
Authors:
AuthorsInstitution or Email of Authors
Brusch, Stephanstephan.brusch@dlr.de
Lehner, SusanneSusanne.Lehner@dlr.de
Reppucci, AntonioUNSPECIFIED
Date:2008
Journal or Publication Title:Proceedings of IGARSS'08
Refereed publication:No
In ISI Web of Science:No
Page Range:II-489-II-492
Editors:
EditorsEmail
IEEE, UNSPECIFIED
ISSN:DOI: 10.1109/IGARSS.2008.4779035
ISBN:978-1-4244-2807-6
Status:Published
Keywords:Synthetic aperture radar (SAR), numerical high resolution model, wind field
Event Title:IGARSS 2008
Event Location:Boston, Massachusetts (USA)
Event Type:international Conference
Event Dates:2008-07-06 - 2008-07-11
Organizer:IEEE
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 - Vorhaben Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung (old)
Location: Berlin-Adlershof , Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Marine Remote Sensing
Deposited By: Bärbel Bolowski
Deposited On:03 Mar 2009
Last Modified:06 May 2013 16:03

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