SATO Keisuke
Department / Course College of Science and Engineering Department of Civil and Environmental Engineering
Title / Position Associate Professor
Date 2020/11/07
Presentation Theme Applicability of HSPF to Drought Risk Assessment in the Yom River Basin, Thailand
Conference the Water and Environment Technology Conference Online2020
Promoters Japan Society on Water Environment (JSWE)
Location Online
Conference Type International
Presentation Type Speech (General)
Contribution Type Collaborative
Country 日本
Holding period 2020/11/07 ~ 2020/11/08
Publisher and common publisher Ayumi OKABAYASHI, Taishi YAZAWA, Seiji HASHIMOTO, Keisuke SATO
Details In Southeast Asia, Integrated Water Resources Management (IWRM) is needed because droughts damage agriculture and lives of residents. This research aims to apply Hydrological Simulation Program-FORTRAN (HSPF) to drought risk assessment in the Yom River Basin, Thailand. In this research, the HSPF model was first constructed after collecting the weather and topography data of the target basin. Then, drought risk of each sub-basin was assessed by the average drought duration which is estimated by the simulated river discharge.
As a result of the drought risk assessment, it was revealed that the areas with high drought risk were concentrated on the eastern downstream of the basin based on several drought thresholds, such as low-flow and drought-flow discharges derived from the flow duration curve. In these areas, there are concerns over med- to long-term drought which lasts for over a month.