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Mapping damage during the Bam (Iran) earthquake using interferometric coherence

Hoffmann, Jörn (2007) Mapping damage during the Bam (Iran) earthquake using interferometric coherence. International Journal of Remote Sensing, 28 (6), Seiten 1199-1216. Taylor & Francis. DOI: 10.1080/01431160600928567. ISSN 0143-1161.

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Offizielle URL: http://dx.doi.org/10.1080/01431160600928567

Kurzfassung

We use changes in the interferometric coherence to map earthquake damages that occurred in the city of Bam during the Bam earthquake on December 26, 2003. The approach presented here defines a coherence change index that can be interpreted quantitatively in terms of damages during a catastrophic event like a major earthquake. Using five differential interferometric synthetic aperture radar images we compute maps of interferometric coherence. Three coherence change images are computed from these based on different interferograms. These three damage assessments yield very similar results despite the range of times and interferometric baselines spanned. This coherence-based damage assessment also agrees closely with independent damage maps derived from other types of imagery. Using existing or planned synthetic aperture radar (SAR) satellites coherence-based damage assessments could be obtained within days after a catastrophic event, provided the necessary reference images are prepared ahead of time. As SAR sensors can operate independently of weather conditions and daylight this may present a reliable and robust means for damage assessment.

Dokumentart:Zeitschriftenbeitrag
Titel:Mapping damage during the Bam (Iran) earthquake using interferometric coherence
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hoffmann, Jörn joern.hoffmann@dlr.de
Datum:20 März 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 :10.1080/01431160600928567
Seitenbereich:Seiten 1199-1216
Verlag:Taylor & Francis
ISSN:0143-1161
Status:veröffentlicht
Stichwörter:InSAR, damage mapping
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 Prozesse der Landoberfläche (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Deutsches Fernerkundungsdatenzentrum
Hinterlegt von: Dr. Jörn Hoffmann
Hinterlegt am:07 Mai 2007
Letzte Änderung:22 Apr 2013 14:36

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