期刊论文详细信息
Water
Flood Damage Modeling on the Basis of Urban Structure Mapping Using High-Resolution Remote Sensing Data
Tina Gerl1  Mathias Bochow2 
[1] Section Hydrology, Helmholtz Centre Potsdam—German Research Centre for Geosciences GFZ, Telegrafenberg, Potsdam 14473, Germany; E-Mail:;Section Remote Sensing, Helmholtz Centre Potsdam—German Research Centre for Geosciences GFZ, Telegrafenberg, Potsdam 14473, Germany; E-Mail:
关键词: flood risk;    flood loss estimation;    FLEMOps;    regression tree;    remote sensing;    land use/land cover classification;    urban structure types;   
DOI  :  10.3390/w6082367
来源: mdpi
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【 摘 要 】

The modeling of flood damage is an important component for risk analyses, which are the basis for risk-oriented flood management, risk mapping, and financial appraisals. An automatic urban structure type mapping approach was applied on a land use/land cover classification generated from multispectral Ikonos data and LiDAR (Light Detection And Ranging) data in order to provide spatially detailed information about the building stock of the case study area of Dresden, Germany. The multi-parameter damage models FLEMOps (Flood Loss Estimation Model for the private sector) and regression-tree models have been adapted to the information derived from remote sensing data and were applied on the basis of the urban structure map. To evaluate this approach, which is suitable for risk analyses, as well as for post-disaster event analyses, an estimation of the flood losses caused by the Elbe flood in 2002 was undertaken. The urban structure mapping approach delivered a map with a good accuracy of 74% and on this basis modeled flood losses for the Elbe flood in 2002 in Dresden were in the same order of magnitude as official damage data. It has been shown that single-family houses suffered significantly higher damages than other urban structure types. Consequently, information on their specific location might significantly improve damage modeling, which indicates a high potential of remote sensing methods to further improve risk assessments.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.

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