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DOI	10.5194/hess-23-4309-2019
	Analytical model captures intratidal variation in salinity in a convergent; well-mixed estuary
	Xu Y.; Hoitink A.J.F.; Zheng J.; Kästner K.; Zhang W.
发表日期	2019
ISSN	1027-5606
起始页码	4309
结束页码	4322
卷号	23 期号:10
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.
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
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159583
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 o...
推荐引用方式 GB/T 7714	Xu Y.,Hoitink A.J.F.,Zheng J.,et al. Analytical model captures intratidal variation in salinity in a convergent; well-mixed estuary[J],2019,23(10).
APA	Xu Y.,Hoitink A.J.F.,Zheng J.,Kästner K.,&Zhang W..(2019).Analytical model captures intratidal variation in salinity in a convergent; well-mixed estuary.Hydrology and Earth System Sciences,23(10).
MLA	Xu Y.,et al."Analytical model captures intratidal variation in salinity in a convergent; well-mixed estuary".Hydrology and Earth System Sciences 23.10(2019).