Developing the Regression Equations to Determine the Bankfull Discharge from the Basin Characteristics

• Autorzy: Chau Tran Kim , Toan Nguyen The , Duc Do Anh , Linh Nguyen Ha

Identyfikatory

DOI

10.2478/heem-2021-0006

• Języki publikacji: EN

Abstrakty

EN

Bankfull discharge is an important criterion for flash flood warnings. In this study, the authors propose a new approach to determine the bankfull discharge for basins in Ha Giang province, Vietnam. The study combines the field survey to determine the bankfull discharge through the bankfull indicators and develop a multivariate regression equation between the bankfull discharge and the basin characteristics. The results of the study give a simple equation with 2 independent variables. They are the catchment area and the main river length. They show a strong relationship with the bankfull discharge with the R² indexes in developing and validating process equal to 95.3% and 92.7%, respectively. With this approach, the workload is significantly reduced. However, the accuracy and flexibility of the total discharge calculation are enhanced. This will be the foundation to reduce uncertainty in flash flood warnings.

Słowa kluczowe

EN

bankfull discharge; regression equation; catchment characteristics

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2021
• Tom: Vol. 68, nr 2
• Strony: 103--117
• Opis fizyczny: Bibliogr. 36 poz., rys., tab.

Twórcy

autor

Chau Tran Kim

• Thuyloi University, 175 Tay Son, Dong Da, Hanoi

autor

Toan Nguyen The

• Thuyloi University, 175 Tay Son, Dong Da, Hanoi

autor

Duc Do Anh

• Institute for Hydro Power and Renewable Energy, alley 95, Chua Boc, Dong Da, Hanoi

autor

Linh Nguyen Ha

• Hanoi University of Natural Resources and Environment, 41A, Phu Dien, Bac Tu Liem, Hanoi

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).