气候变化领域集成服务门户(CCPortal): Sea-level rise impacts on longitudinal salinity for a low-gradient estuarine system

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DOI	10.1007/s10584-019-02369-x
	Sea-level rise impacts on longitudinal salinity for a low-gradient estuarine system
	Mulamba T.; Bacopoulos P.; Kubatko E.J.; Pinto G.F.
发表日期	2019
ISSN	0165-0009
起始页码	533
结束页码	550
卷号	152 期号:2020-03-04
英文摘要	Salinity response to sea-level rise is evaluated for a low-gradient, tidally active estuary, the lower St. Johns River, Florida. A high-resolution numerical model is forced by continuous data of water levels and freshwater inflows for the offshore and upstream boundaries, respectively. The modeling approach is configured for salinity simulation over a 10-year record, 1997–2007, and validated at four salinity-gauging stations inside the river. The initial condition of salinity field was found to be a critical factor in the numerical simulation. Adjustments in the initial salinity condition of ± 10% required 6–9 months for the model salinity solution to dynamically equilibrate with the applied boundary conditions. Model predictions of salinity response to sea-level rise of 0.05, 0.15, and 0.30 m were diagnosed in terms of salinity change. Salinity was found to increase over the entire river, regardless of the magnitude of sea-level rise. Linear rates of salinity increase were predicted as high as 6 ppt m −1 inside the river. The change in salinity was nonuniform throughout the system and exhibited a moderate-to-strong nonlinear component. The results uncover a hotspot in the river where salinity was predicted to increase as much as ~ 2.3 ppt due to the nonlinear system response to sea-level rise. © 2019, Springer Nature B.V.
语种	英语
scopus关键词	Numerical models; Offshore oil well production; Rivers; Water levels; Estuarine systems; Freshwater inflow; Gauging stations; High-resolution numerical models; Initial conditions; Model prediction; Nonlinear components; Salinity simulations; Sea level; estuarine environment; gauge; numerical model; saline intrusion; salinity; sea level change; water chemistry; Florida [United States]; Saint Johns River; United States
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147499
作者单位	Haskell, 111 Riverside Ave., Jacksonville, FL 32202, United States; Independent subcontractor, 1431 Riverplace Blvd. 1201, Jacksonville, FL 32207, United States; Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, 2070 Neil Ave., 417D Hitchcock Hall, Columbus, OH 43210, United States; Marine Science Research Institute, Jacksonville University, 2800 University Blvd. N., Jacksonville, FL 32211, United States
推荐引用方式 GB/T 7714	Mulamba T.,Bacopoulos P.,Kubatko E.J.,et al. Sea-level rise impacts on longitudinal salinity for a low-gradient estuarine system[J],2019,152(2020-03-04).
APA	Mulamba T.,Bacopoulos P.,Kubatko E.J.,&Pinto G.F..(2019).Sea-level rise impacts on longitudinal salinity for a low-gradient estuarine system.Climatic Change,152(2020-03-04).
MLA	Mulamba T.,et al."Sea-level rise impacts on longitudinal salinity for a low-gradient estuarine system".Climatic Change 152.2020-03-04(2019).