Yen-Po HuangHui-Ping TsaiLi-Chi Chiang2024-10-252024-10-252024-04-30https://www.scopus.com/record/display.uri?eid=2-s2.0-85194073413&origin=resultslisthttps://scholars.lib.ntu.edu.tw/handle/123456789/722454Article number: 178This research investigates flood susceptibility in the mid- and downstream areas of Taiwan’s Wu River, historically prone to flooding in central Taiwan. The study integrates the Hydrologic Engineering Center—Hydrologic Modeling System (HEC-HMS) for flow simulations with unmanned aerial vehicle (UAV)-derived digital surface models (DSMs) at varying resolutions. Flood simulations, executed through the International River Interface Cooperative (iRIC), assess flood depths using diverse DSM resolutions. Notably, HEC-HMS simulations exhibit commendable Nash–Sutcliffe efficiency (NSE) exceeding 0.88 and a peak flow percentage error (PEPF) below 5%, indicating excellent suitability. In iRIC flood simulations, optimal results emerge with a 2 m resolution UAV-DSM. Furthermore, the study incorporates rainfall data at different recurrence intervals in iRIC flood simulations, presenting an alternative flood modeling approach. This research underscores the efficacy of integrating UAV-DSM into iRIC flood simulations, enabling precise flood depth assessment and risk analysis for flood control management.trueDSMflood simulationHEC-HMSiRICUAV[SDGs]SDG6[SDGs]SDG11[SDGs]SDG13[SDGs]SDG14journal article10.3390/drones80501782-s2.0-85194073413