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Investigation into the spatial and temporal tide-river dynamics and the underlying controlled factors along the tidal reach of the Changjiang River
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Jingzheng Huang1, 2, 3, Xianyi Zhang1, 2, 3, Zheng Wu4, Feng Liu1, 2, 3, Huayang Cai1, 2, 3, *, Qingshu Yang1, 2, 3
Haiyang Xuebao | 2020, 42(3) : 25 - 35
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Haiyang Xuebao | 2020, 42(3): 25-35
• Physical Oceanography, Marine Meteorology and Marine Physics •
Investigation into the spatial and temporal tide-river dynamics and the underlying controlled factors along the tidal reach of the Changjiang River
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Jingzheng Huang1, 2, 3, Xianyi Zhang1, 2, 3, Zheng Wu4, Feng Liu1, 2, 3, Huayang Cai1, 2, 3, *, Qingshu Yang1, 2, 3
Affiliations
  • 1 Institute of Estuarine and Coastal Research/School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China
  • 2 State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, Guangzhou 510275, China
  • 3 Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou 510275, China
  • 4 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Published: 2020-03-25 doi: 10.3969/j.issn.0253-4193.2020.03.003
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As tidal waves propagate into the estuary, they are featured by significant longitudinal variation in seasonal scale due to the nonlinear interactions between tide and river discharge. In this study, the variations of tide-river dynamics in terms of tidal damping rate, wave celerity and residual water level slope were explored based on long-term time series of tidal water levels from 2002 to 2014 along the tidal reach of the Changjiang River (including the Tianshenggang, Jiangyin, Zhenjiang, Nanjing, Maanshan and Wuhu stations) in together with the monthly averaged river discharge observed at Datong hydrological stations. Subsequently, the underlying controlled factors that influence the tidal wave propagation were discussed. It was shown that the seasonal difference in tide-river dynamics was gradually reduced in the seaward direction. We identified a transitional zone located between the Tianshenggang and Jiangyin stations, where the seasonal differences in tidal range are 0.01 m and −0.04 m, respectively. Generally, upstream from Jiangyin Station the dynamics character was river-dominated, while in the lower reaches it was mainly controlled by the tidal forcing. In addition, we show that there exists a threshold in river discharge in the upper reaches of the tidal reach of the Changjiang River due to the increase of residual water level and hence water depth caused by the residual water level slope. This phenomenon was particularly true in the upstream reach between Maanshan to Wuhu stations, where the threshold of river discharge was approximately 33 000 m3/s. The results obtained from this study can enhance our understanding of tide-river interaction, and will, hopefully, provide guidelines for water resources management in the tidal reach of the Changjiang River.

Changjiang River Estuary  /  tidal river  /  river discharge  /  tidal damping  /  residual water level
Jingzheng Huang, Xianyi Zhang, Zheng Wu, Feng Liu, Huayang Cai, Qingshu Yang. Investigation into the spatial and temporal tide-river dynamics and the underlying controlled factors along the tidal reach of the Changjiang River[J]. Haiyang Xuebao, 2020 , 42 (3) : 25 -35 . DOI: 10.3969/j.issn.0253-4193.2020.03.003
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Article Info
doi: 10.3969/j.issn.0253-4193.2020.03.003
  • Receive Date：2019-01-24
  • Online Date：2026-03-26
  • Published：2020-03-25
Article Data
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History
  • Received：2019-01-24
  • Revised：2019-06-23
Funding
Affiliations
    1 Institute of Estuarine and Coastal Research/School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China
    2 State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, Guangzhou 510275, China
    3 Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou 510275, China
    4 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
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https://castjournals.cast.org.cn/joweb/hyxb/EN/10.3969/j.issn.0253-4193.2020.03.003
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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