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Flood Detection in Urban Areas Using TerraSAR-X

Mason, David C. und Speck, Rainer und Devereux, Bernard und Schumann, Guy J.-P. und Neal, Jeffrey C. und Bates, Paul D. (2010) Flood Detection in Urban Areas Using TerraSAR-X. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), Seiten 882-894. IEEE. DOI: 10.1109/TGRS.2009.2029236. ISSN 0196-2892 .

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Offizielle URL: http://www.ieee.org

Kurzfassung

Flooding is a major hazard in both rural and urban areas worldwide, but it is in urban areas that the impacts are most severe. An investigation of the ability of high-resolution TerraSAR-X synthetic aperture radar (SAR) data to detect flooded regions in urban areas is described. The study uses a TerraSAR-X image of a one-in-150-year flood near Tewkesbury, U.K., in 2007, for which contemporaneous aerial photography exists for validation. The German Aerospace Center (DLR) SAR end-to-end simulator (SETES) was used in conjunction with airborne scanning laser altimetry (LiDAR) data to estimate regions of the image in which water would not be visible due to shadow or layover caused by buildings and taller vegetation. A semiautomatic algorithm for the detection of floodwater in urban areas is described, together with its validation using aerial photographs. Of the urban water pixels that are visible to TerraSAR-X, 76% were correctly detected, with an associated false positive rate of 25%. If all the urban water pixels were considered, including those in shadow and layover regions, these figures fell to 58% and 19%, respectively. The algorithm is aimed at producing urban flood extents with which to calibrate and validate urban flood inundation models, and these findings indicate that TerraSAR-X is capable of providing useful data for this purpose.

Dokumentart:Zeitschriftenbeitrag
Titel:Flood Detection in Urban Areas Using TerraSAR-X
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Mason, David C.University of Reading, U.K., dcm@ mail.nerc-essc.ac.uk
Speck, Rainerrainer.speck@dlr.de
Devereux, BernardUniversity of Cambridge, U.K.
Schumann, Guy J.-P.University of Bristol, U.K.
Neal, Jeffrey C.University of Bristol, U.K.
Bates, Paul D.University of Bristol, U.K.
Datum:Februar 2010
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:48
DOI :10.1109/TGRS.2009.2029236
Seitenbereich:Seiten 882-894
Verlag:IEEE
ISSN:0196-2892
Status:veröffentlicht
Stichwörter:Algorithms, hydrology, image processing, simulation, SETES
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 Sicherheitsrelevante Erdbeobachtung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Aufklärung und Sicherheit
Hinterlegt von: Dr.-Ing. Rainer Speck
Hinterlegt am:18 Dez 2009 08:16
Letzte Änderung:07 Feb 2013 20:23

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