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Examination of three practical run-up models for assessing tsunami impact on highly populated areas

Muhari, Abdul und Imamura, Fumihiko und Koshimura, Sunchi und Post, Joachim (2011) Examination of three practical run-up models for assessing tsunami impact on highly populated areas. Natural Hazards and Earth System Sciences, 11, Seiten 3107-3123. DOI: 10.5194/nhess-11-3107-2011.

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Offizielle URL: http://www.nat-hazards-earth-syst-sci.net/11/3107/2011/

Kurzfassung

This paper describes the examination of three practical tsunami run-up models that can be used to assess the tsunami impact on human beings in densely populated areas. The first of the examined models applies a uniform bottom roughness coefficient throughout the study area. The second uses a very detailed topographic data set that includes the building height information integrated on a Digital Elevation Model (DEM); and the third model utilizes different bottom roughness coefficients, depending on the type of land use and on the percentage of building occupancy on each grid cell. These models were compared with each other by taking the one with the most detailed topographic data (which is the second) as reference. The analysis was performed with the aim of identifying how specific features of high resolution topographic data can influence the tsunami run-up characteristics. Further, we promote a method to be used when very detailed topographic data is unavailable and discuss the related limitations. To this purpose we demonstrate that the effect of buildings on the tsunami flow can be well modeled by using an equivalent roughness coefficient if the topographic data has no information of building height. The results from the models have been utilized to quantify the tsunami impact by using the tsunami casualty algorithm. The models have been applied in Padang city, Indonesia, which is one of the areas with the highest potential of tsunami risk in the world.

Dokumentart:Zeitschriftenbeitrag
Titel:Examination of three practical run-up models for assessing tsunami impact on highly populated areas
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Muhari, AbdulTsunami Engineering Laboratory, Disaster Control Research Center, Graduate School of Engineering, TOHOKU University, Japan
Imamura, FumihikoTsunami Engineering Laboratory, Disaster Control Research Center, Graduate School of Engineering, TOHOKU University, Japan
Koshimura, SunchiTsunami Engineering Laboratory, Disaster Control Research Center, Graduate School of Engineering, TOHOKU University, Japan
Post, JoachimJoachim.Post@dlr.de
Datum:2 Dezember 2011
Erschienen in:Natural Hazards and Earth System Sciences
Referierte Publikation:Ja
In Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:11
DOI :10.5194/nhess-11-3107-2011
Seitenbereich:Seiten 3107-3123
Status:veröffentlicht
Stichwörter:Modelling, tsunami, risk, disaster, people
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Zivile Kriseninformation und Georisiken
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Deutsches Fernerkundungsdatenzentrum > Zivile Kriseninformation und Georisiken
Hinterlegt von: Dr.rer.nat. Joachim Post
Hinterlegt am:31 Jan 2012 15:48
Letzte Änderung:12 Dez 2013 21:36

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