JDR Vol.13 No.5 pp. 967-977
doi: 10.20965/jdr.2018.p0967


Flood and Substance Transportation Analysis Using Satellite Elevation Data: A Case Study in Dhaka City, Bangladesh

Masakazu Hashimoto*1,†, Nozomu Yoneyama*2, Kenji Kawaike*2, Tomonori Deguchi*3, Mohammed Abed Hossain*4, and Hajime Nakagawa*2

*1International Research Institute of Disaster Science (IRIDeS), Tohoku University
468-1 Aoba, Aramaki, Aoba-ku, Sendai 980-0845, Japan

Corresponding author

*2Disaster Prevention Research Institute (DPRI), Kyoto University, Kyoto, Japan

*3Nittetsu Mining Consultants Co., Ltd., Tokyo, Japan

*4Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh

February 13, 2018
June 8, 2018
October 1, 2018
vertical accuracy, DEM, substance transportation analysis, flood analysis

This study investigated the vertical accuracy of satellite elevation data and its effect on flood and substance transportation analysis by using a two-dimensional flood simulation model. SRTM, AW3D, and ASTER GDEM satellite elevation data for East Dhaka, Bangladesh were used for evaluating the vertical accuracy and conducting numerical analyses. A case study in 2007 was simulated for the flooding analysis. The results showed that AW3D had the highest applicability because its vertical accuracy for low-lying areas was better than that of the other products. According to the differences in the flood extent of each satellite elevation data, the simulation results of the substance transportation analysis showed different spreading conditions. Furthermore, differences in the flood velocity and direction affected the distribution of the deposited substance.

Cite this article as:
M. Hashimoto, N. Yoneyama, K. Kawaike, T. Deguchi, M. Hossain, and H. Nakagawa, “Flood and Substance Transportation Analysis Using Satellite Elevation Data: A Case Study in Dhaka City, Bangladesh,” J. Disaster Res., Vol.13 No.5, pp. 967-977, 2018.
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