globalchange  > 气候变化与战略
DOI: 10.5194/hess-23-4309-2019
论文题名:
Analytical model captures intratidal variation in salinity in a convergent; well-mixed estuary
作者: Xu Y.; Hoitink A.J.F.; Zheng J.; Kästner K.; Zhang W.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2019
卷: 23, 期:10
起始页码: 4309
结束页码: 4322
语种: 英语
Scopus关键词: Advection ; Analytical models ; Economic geology ; Forecasting ; Salt water intrusion ; Advection-diffusion equation ; Eco-environments ; Mixing coefficient ; Pearl River delta ; Resource potentials ; Salinity variations ; Spatio-temporal variation ; Well-mixed estuary ; Estuaries ; advection-diffusion equation ; estuarine environment ; runoff ; saline intrusion ; salinity ; spatial distribution ; spatiotemporal analysis ; China ; Guangdong ; Zhujiang Delta
英文摘要: Knowledge of the processes governing salt intrusion in estuaries is important, since it influences the eco-environment of estuaries as well as its water resource potential in many ways. Analytical models of salinity variation offer a simple and efficient method for studying salt intrusion in estuaries. In this paper, an unsteady analytical solution is presented to predict the spatio-temporal variation in salinity in convergent estuaries. It is derived from a one-dimensional advection-diffusion equation for salinity, adopting a constant mixing coefficient and a single-frequency tidal wave, which can directly reflect the influence of the tidal motion and the interaction between the tide and runoff. The deduced analytical solution is illustrated with an application to the Humen estuary of the Pearl River Delta (PRD) and proves to be an efficient and accurate approach for predicting the salt intrusion in convergent estuaries. The unsteady analytical solution is tested against observations from six study sites to validate its capability to predict intratidal variation in salt intrusion. The results show that the proposed unsteady analytical solution can be successfully used to reproduce the spatial distribution and temporal processes governing salinity dynamics in convergent, well-mixed estuaries. The proposed method provides a quick and convenient approach for deciding on water-fetching methods to make good use of water resources. © Author(s) 2019.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162873
Appears in Collections:气候变化与战略

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作者单位: Xu, Y., Key Laboratory of Coastal Disasters and Defense, Ministry of Education, Hohai University, Nanjing, 210098, China, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, 210098, China, Key Laboratory of the Pearl River Estuarine Dynamics and Associated Process Regulation, Ministry of Water Resources, Guangzhou, 510611, China; Hoitink, A.J.F., Hydrology and Quantitative Water Management Group, Department of Environmental Sciences, Wageningen University, Wageningen, Netherlands; Zheng, J., College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, 210098, China, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China; Kästner, K., Hydrology and Quantitative Water Management Group, Department of Environmental Sciences, Wageningen University, Wageningen, Netherlands; Zhang, W., College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, 210098, China, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China

Recommended Citation:
Xu Y.,Hoitink A.J.F.,Zheng J.,et al. Analytical model captures intratidal variation in salinity in a convergent; well-mixed estuary[J]. Hydrology and Earth System Sciences,2019-01-01,23(10)
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