Amin, M. Baitullah Al and Sarino, Sarino and Haki, Helmi and Ilmiaty, Reini Silvia and Marlina, Ayu (2018) DEVELOPMENT OF FLOOD INUNDATION MAP USING UAV-BASED DEM ON RESIDENTIAL AREA. In: 21st Congress of International Association for Hydro-Environment Engineering and Research (IAHR), Asia Pacific Division (APD), 2-5 Sept 2018, Yogyakarta, Indonesia.

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This paper presents the hydraulic modeling and simulation to develop a flood inundation map in residential areas using high-resolution digital elevation model (DEM) generated by the Unmanned Aerial Vehicle (UAV) survey. The research was done at Bukit Sejahtera and Tanjung Rawa residential areas located in Palembang City, South Sumatra Province, Indonesia with a total area of about 200 ha. The new HEC-RAS 5.0 was used as a hydrodynamic model to simulate the combined one and two-dimensional flow routing based on 5-year return period of flood hydrographs for upstream boundary conditions and the highest tide level for downstream boundary condition. The results show that the UAV survey can produce a high-resolution DEM. The grid size of UAV-based DEM was generated in this study is 0.1x0.1m, so it can be said to have a high spatial resolution. The simulated flood depths compared with measured data show a good trend and corresponding values. However, a more detailed calibration cannot be performed because of the limitation of measurable data. Nevertheless, the results of this study have demonstrated the enormous potential use of UAV in the future to acquire high-resolution elevation data for generating a detailed and accurate flood inundation map. The authors believe that the utilization of UAVs will be more extensive for flood control and management strategies, especially in Indonesia due to its flexibility, reliability and affordable cost. The characteristic of flood depths in the study area is also discussed in this paper.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Flood mapping, hydrodynamic model, GIS, UAV
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General)
T Technology > TC Hydraulic engineering. Ocean engineering > TC1-978 Hydraulic engineering
Divisions: 03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User: M. Baitullah Al Amin
Date Deposited: 27 Sep 2019 11:55
Last Modified: 27 Sep 2019 11:55

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