Simulating Typhoon Floods with Gauge Data and Mesoscale-Modeled Rainfall in a Mountainous Watershed | Zendy

MingHsu Li | Zendy; MingJen Yang | Zendy; Ruitang Soong | Zendy; Hsiao-Ling Huang | Zendy

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Simulating Typhoon Floods with Gauge Data and Mesoscale-Modeled Rainfall in a Mountainous Watershed

Author(s) -

MingHsu Li,

MingJen Yang,

Ruitang Soong,

Hsiao-Ling Huang

Publication year - 2005

Publication title -

journal of hydrometeorology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.733

H-Index - 123

eISSN - 1525-755X

pISSN - 1525-7541

DOI - 10.1175/jhm423.1

Subject(s) - mm5 , environmental science , typhoon , mesoscale meteorology , flood myth , rain gauge , hydrograph , runoff model , climatology , surface runoff , watershed , precipitation , meteorology , wind speed , hydrology (agriculture) , atmospheric sciences , geology , geography , ecology , geotechnical engineering , archaeology , machine learning , computer science , biology

A physically based distributed hydrological model was applied to simulate typhoon floods over a mountainous watershed in Taiwan. The meteorological forcings include the observed gauge rainfall data and the predicted rainfall data from a mesoscale meteorological model, the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale Model (MM5). This study investigates the flood responses of three Typhoons: Zeb (1998), Nari (2001), and Herb (1996), which possessed unique meteorological features and that all produced severe floods. The predicted basin-averaged rainfall hydrographs by the MM5 are compared with that interpreted by rain gauge data to reveal the discrepancies in rainfall peak amounts and time lags, and to explore their subsequent effects on flood generation. The simulated flood hydrographs at the Hsia-Yun station, which is upstream of the Shihmen Reservoir, are compared with observed flood discharges in terms of the amount and time lag of...

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