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
*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
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.
-  M. A. C. Niroshinie, Y. Nihei, K. Ohtsuki, and S. Okada, “Flood inundation analysis and mitigation with a coupled 1D-2D hydraulic model: a case study in Kochi, Japan,” J. Disaster Res., Vol.10, No.6, pp. 1099-1109, doi:10.20965/jdr.2015.p1099, 2015.
-  B. B. Shrestha, H. Sawano, M. Ohara, and N. Nagumo, “Improvement in flood disaster damage assessment using highly accurate IfSAR DEM,” J. Disaster Res., Vol.11, No.6, pp. 1137-1149, doi:10.20965/jdr.2016.p1137, 2016.
-  Y. Morooka and T. Yamada, “Study on the characteristics of rainfall runoff in the Kinugawa River Basin and the evacuation behavior of the residents at the time of Kanto and Tohoku flood disaster in September, 2015,” J. Disaster Res., Vol.12, No.1, pp. 176-186, doi:10.20965/jdr.2017.p0176, 2017.
-  S. Kudo, A. Yorozuya, H. Koseki, Y. Iwami, and M. Nakatsugawa, “Inundation process in the lower Mekong River Basin,” J. Disaster Res., Vol.11, No.6, pp. 1062-1072, doi:10.20965/jdr.2016.p1062, 2016.
-  H. Inomata, S. Tanaka, K. Fukami, and H. Yamashita, “A study on accuracy of satellite-based topographical data and its applicability to flood inundation simulation,” Annual j. of hydraulic engineering, Vol.54, pp. 925-930, 2010 (in Japanese).
-  M. Hashimoto, T. Suetsugi, Y. Ichikawa, K. Sunada, K. Nishida, and N. Kondo, “Assessing the relationship between inundation and diarrhoeal cases by flood simulations in low-income communities of Dhaka City, Bangladesh,” Hydrological Research Letters, Vol.8, No.3, pp. 96-102, doi:10.3178/hrl.8.96, 2014.
-  M. Hashimoto, K. Kawaike, H. Nakagawa, and N. Yoneyama, “Assessing the affected area of pollutants by flooding in Dhaka City, Bangladesh,” Proc. of the Int. Association for Hydro-Environment Engineering and Research-Asian and Pacific Regional Division (IAHR-APD), 2C001(USB), 2016.
-  M. Masood and K. Takeuchi, “Assessment of flood hazard, vulnerability and risk of mid-eastern Dhaka using DEM and 1D hydrodynamic model,” Natural Hazards, Vol.61, No.2, pp. 757-770, doi:10.1007/s11069-011-0060-x, 2012.
-  M. Hashimoto, T. Suetsugi, K. Sunada, Y. Ichikawa, N. Kondo, and K. Nishida, “Study on sensitivity analysis of main factors for inundation in Dhaka City, Bangladesh,” Advances in River Engineering, Vol.18, pp. 487-492, 2012 (in Japanese).
-  NTT DATA, Remote Sensing Technology Center of Japan, “Home page of AW3D-Technology,” http://www.aw3d.jp/technology/, 2014. [accessed February 1, 2018]
-  NASA, “SRTM mission statistics,” https://www2.jpl.nasa.gov/srtm/statistics.html, 2010. [accessed February 1, 2018]
-  Jspacesystems, “Outline of ASTER GDEM,” http://www.jspacesystems.or.jp/ersdac/GDEM/E/2.html, 2009. [accessed February 1, 2018]
-  Japan Int. Cooperation Agency, Survey of Bangladesh, “The study of urban information management for greater Dhaka City in the people’s republic of Bangladesh (Final Report),” 2004.
-  Y. Iwasa, K. Inoue, and M. Mizutori, “Hydraulic analysis of overland flood flows by means of numerical method,” Disaster Prevention Research Institute Annuals., B, Vol.23, No.B-2, pp. 305-317, 1980 (in Japanese).
-  T. Itakura and T. Kishi, “Open channel flow with suspended sediments,” J. of the Hydraulics Division, Vol.106, No.8, pp. 1325-1343, 1980.
-  W. W. Rubey, “Settling velocities of gravels, sand and silt particles,” American J. of Science, Vol.25, pp. 325-338, 1933.
-  Bangladesh Engineering and Technological Services, “Environmental Impact Assessment on the industrial activities at Hazaribagh Area, Dhaka,” Final Report, 2000.
-  K. Ishida and M. Harada, “Absorption and desorption of chromium (VI) on active carbon,” Bunseki Kagaku, Vol.53, No.10, pp. 1061-1065, 2004 (in Japanese).
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