Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems
The streamflow characteristics within the Yangtze River Basin have experienced substantial fluctuations in recent years because of the combined effects of environmental factors and intensive human activities. In this study, at the Datong station, two coastal acoustic tomography (CAT) systems were us...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.1066693/full |
| _version_ | 1797987651099295744 |
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| author | Cong Xiao Xiao-Hua Zhu Xiao-Hua Zhu Xiao-Hua Zhu Zenan Zhu Chuanzheng Zhang Hua Zheng Hua Zheng Zhensheng Zhang Jiwen Zhong Lixin Wei |
| author_facet | Cong Xiao Xiao-Hua Zhu Xiao-Hua Zhu Xiao-Hua Zhu Zenan Zhu Chuanzheng Zhang Hua Zheng Hua Zheng Zhensheng Zhang Jiwen Zhong Lixin Wei |
| author_sort | Cong Xiao |
| collection | DOAJ |
| description | The streamflow characteristics within the Yangtze River Basin have experienced substantial fluctuations in recent years because of the combined effects of environmental factors and intensive human activities. In this study, at the Datong station, two coastal acoustic tomography (CAT) systems were used to track the Yangtze River discharge from July 2018 to January 2021. The stage–discharge relationship presented large uncertainties because of the Three Gorges Dam (TGD) operations, whereas the CAT method performed effectively in discharge monitoring even during extreme flood events. The distribution of downstream discharge was concentrated because of the regulation by the TGD. Analysis of the potential drivers in the downstream river hydrology reveals that the effect of rainfall events (leading to a maximum of ~40% changes) was heavily influenced by the regulation by the TGD (at least 50% contribution). Additionally, the river–tide process is also sensitive to the discharge regulated by the TGD. The discharge induced by tidal waves was negligible (a maximum of 1.11% change). This work demonstrates that an acoustic method can effectively monitor the massive flood discharge in unsteady flow conditions in large rivers, thereby facilitating the management of large-scale dam- and tide-influenced river systems. |
| first_indexed | 2024-04-11T07:50:29Z |
| format | Article |
| id | doaj.art-7b83ff002c7b4862b0d61f62c4f1a513 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-11T07:50:29Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-7b83ff002c7b4862b0d61f62c4f1a5132022-12-22T04:36:05ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-12-01910.3389/fmars.2022.10666931066693Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systemsCong Xiao0Xiao-Hua Zhu1Xiao-Hua Zhu2Xiao-Hua Zhu3Zenan Zhu4Chuanzheng Zhang5Hua Zheng6Hua Zheng7Zhensheng Zhang8Jiwen Zhong9Lixin Wei10State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, ChinaSchool of Oceanography, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaSchool of Oceanography, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaLower Changjiang River Bureau of Hydrological and Water Resources Survey, Hydrology Bureau of Changjiang Water Resources Commission, Nanjing, ChinaLower Changjiang River Bureau of Hydrological and Water Resources Survey, Hydrology Bureau of Changjiang Water Resources Commission, Nanjing, ChinaThe streamflow characteristics within the Yangtze River Basin have experienced substantial fluctuations in recent years because of the combined effects of environmental factors and intensive human activities. In this study, at the Datong station, two coastal acoustic tomography (CAT) systems were used to track the Yangtze River discharge from July 2018 to January 2021. The stage–discharge relationship presented large uncertainties because of the Three Gorges Dam (TGD) operations, whereas the CAT method performed effectively in discharge monitoring even during extreme flood events. The distribution of downstream discharge was concentrated because of the regulation by the TGD. Analysis of the potential drivers in the downstream river hydrology reveals that the effect of rainfall events (leading to a maximum of ~40% changes) was heavily influenced by the regulation by the TGD (at least 50% contribution). Additionally, the river–tide process is also sensitive to the discharge regulated by the TGD. The discharge induced by tidal waves was negligible (a maximum of 1.11% change). This work demonstrates that an acoustic method can effectively monitor the massive flood discharge in unsteady flow conditions in large rivers, thereby facilitating the management of large-scale dam- and tide-influenced river systems.https://www.frontiersin.org/articles/10.3389/fmars.2022.1066693/fullcoastal acoustic tomographydischarge of Yangtze RiverThree Gorges Damprecipitationtidal wave |
| spellingShingle | Cong Xiao Xiao-Hua Zhu Xiao-Hua Zhu Xiao-Hua Zhu Zenan Zhu Chuanzheng Zhang Hua Zheng Hua Zheng Zhensheng Zhang Jiwen Zhong Lixin Wei Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems Frontiers in Marine Science coastal acoustic tomography discharge of Yangtze River Three Gorges Dam precipitation tidal wave |
| title | Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems |
| title_full | Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems |
| title_fullStr | Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems |
| title_full_unstemmed | Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems |
| title_short | Effect of dam discharges and tides to transport of Yangtze River using coastal acoustic tomography systems |
| title_sort | effect of dam discharges and tides to transport of yangtze river using coastal acoustic tomography systems |
| topic | coastal acoustic tomography discharge of Yangtze River Three Gorges Dam precipitation tidal wave |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.1066693/full |
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