Real-time correction of channel-bed roughness and water level in river network hydrodynamic modeling for accurate forecasting

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成果类型：

期刊论文

作者：

Chen, Yifan;Cao, Feifeng;Cheng, Weiping;Liu, Bin;Yu, Pubing

通讯作者：

Chen, YF

作者机构：

[Chen, Yifan; Chen, YF; Yu, Pubing] Zhejiang Inst Hydraul & Estuary, Zhejiang Inst Marine Planning & Design, Hangzhou 310017, Peoples R China.

[Chen, Yifan; Chen, YF] Zhejiang Prov Key Lab Hydraul Disaster Prevent & M, Hangzhou 310017, Peoples R China.

[Cao, Feifeng] Zhejiang Univ Technol, Coll Civil Engn, Hangzhou 310023, Peoples R China.

[Cheng, Weiping] Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou 310058, Peoples R China.

[Liu, Bin] Changsha Univ Sci & Technol, Coll Traff & Transportat Engn, Changsha 410114, Peoples R China.

通讯机构：

[Chen, YF ] Z

Zhejiang Inst Hydraul & Estuary, Zhejiang Inst Marine Planning & Design, Hangzhou 310017, Peoples R China.

Zhejiang Prov Key Lab Hydraul Disaster Prevent & M, Hangzhou 310017, Peoples R China.

语种：

英文

期刊：

Scientific Reports

ISSN：

2045-2322

年：

2023

卷：

期：

页码：

20660

DOI：

10.1038/s41598-023-42791-x

基金类别：

This research was funded by National Natural Science Foundation of China, Grant number 12002310 and 51609213, Zhejiang Key Research and Development Program, Grant number 2021C03017, General Scientific Research Projects of Education of Zhejiang Province, Grant number Y201941076, and Natural Science Foundation of Zhejiang Province, Grant number LZ22E090003.

机构署名：

本校为其他机构

院系归属：

交通运输工程学院

摘要：

The accuracy and reliability of hydrodynamic models are sensitive to both hydraulic state variables and model parameters, particularly the bed roughness, while their simultaneous real-time corrections and corresponding effects still need to be well-established and understood. This paper presents a real-time data assimilation model that corrects channel-bed roughness and water level in a river network hydrodynamic model, ensuring its accuracy and reliability. Experiments and parameter analysis evaluated the effect of initial roughness and observation noise level on model performance. Correcting...

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Real-time correction of channel-bed roughness and water level in river network hydrodynamic modeling for accurate forecasting

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