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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. Copernicus Publications. 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.

elib-URL des Eintrags:https://elib.dlr.de/74710/
Dokumentart:Zeitschriftenbeitrag
Titel:Examination of three practical run-up models for assessing tsunami impact on highly populated areas
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Muhari, AbdulTsunami Engineering Laboratory, Disaster Control Research Center, Graduate School of Engineering, TOHOKU University, JapanNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Imamura, FumihikoTsunami Engineering Laboratory, Disaster Control Research Center, Graduate School of Engineering, TOHOKU University, JapanNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Koshimura, SunchiTsunami Engineering Laboratory, Disaster Control Research Center, Graduate School of Engineering, TOHOKU University, JapanNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Post, JoachimJoachim.Post (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2 Dezember 2011
Erschienen in:Natural Hazards and Earth System Sciences
Referierte Publikation:Ja
Open Access:Ja
Gold 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
Verlag:Copernicus Publications
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 (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Deutsches Fernerkundungsdatenzentrum > Zivile Kriseninformation und Georisiken
Hinterlegt von: Post, Dr.rer.nat. Joachim
Hinterlegt am:31 Jan 2012 15:48
Letzte Änderung:10 Jan 2019 15:49

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