A Method for Estimating the Hydrodynamic Values of Anastomosing Rivers: The Expression of Channel Morphological Parameters
文献类型：期刊论文
| 作者 | Wang, Suiji1,2 |
| 刊名 | WATER
 |
| 出版日期 | 2024 |
| 卷号 | 16期号:1页码:16 |
| 关键词 | anastomosing river hydrodynamic parameters calculation method shape factor scale factor gradient factor |
| DOI | 10.3390/w16010163 |
| 通讯作者 | Wang, Suiji(wangsj@igsnrr.ac.cn) |
| 英文摘要 | An anastomosing river is a stable multiple-channel system separated by inter-channel wetlands, and there are serious difficulties in observing the hydrodynamics of such river patterns in situ. Therefore, there are few reports on the hydrodynamic data of such rivers, for example, the upper Columbia and Pearl Rivers. In order to obtain the hydrodynamic parameter values at flow cross-sections of anastomosing rivers, without having to observe hydraulic radius, this study proposes a method called the Expression of Channel Morphological Parameters (ECMP) for hydrodynamic estimation. The calculation formula of the ECMP method is based on the shape factor (width-depth ratio), scale factor (mean depth), and gradient factor of the channel cross-sections of anastomosing rivers below a given water level as independent variables. This method can be used to calculate the mean velocity, discharge, specific stream power, and gross stream power of the flow cross-section at different water levels, only requiring the measurements of channel morphological parameters such as the mean depth, width-depth ratio, and gradient at the channel cross-section below the corresponding water level. The applicability of the ECMP method was verified using measured hydrological data. The results showed that the ECMP method is a practical estimation method with higher accuracy that is convenient for calculating the hydrodynamic parameters of anastomosing rivers. It can also be used to reconstruct ancient anastomosing rivers using the channel morphological parameters revealed from the fill sediments in ancient channels. |
| WOS关键词 | UPPER COLUMBIA RIVER ; 1ST GREAT BEND ; BRITISH-COLUMBIA ; SEDIMENTATION-RATES ; EVOLUTION ; YANGTZE ; SYSTEM ; DISCHARGE ; PLANFORM ; ORIGIN |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001140686700001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/202424]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Suiji |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Suiji. A Method for Estimating the Hydrodynamic Values of Anastomosing Rivers: The Expression of Channel Morphological Parameters[J]. WATER,2024,16(1):16. |
| APA | Wang, Suiji.(2024).A Method for Estimating the Hydrodynamic Values of Anastomosing Rivers: The Expression of Channel Morphological Parameters.WATER,16(1),16. |
| MLA | Wang, Suiji."A Method for Estimating the Hydrodynamic Values of Anastomosing Rivers: The Expression of Channel Morphological Parameters".WATER 16.1(2024):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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