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学科主题: Oceanography
题名: Wind impact on pollutant transport in a shallow estuary
作者: Xu, HZ ; Lin, J ; Shen, J ; Wang, DX
通讯作者: jlin3@ncsu.edu
关键词: Pamlico River Estuary (PRE) ; mean age ; residence time ; gravitational circulation ; salt intrusion
刊名: ACTA OCEANOLOGICA SINICA
发表日期: 2008
卷: 27, 期:3, 页:147-160
收录类别: sci
部门归属: [Xu Hongzhou; Lin Jing] N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA; [Xu Hongzhou; Wang Dongxiao] Chinese Acad Sci, S China Sea Inst Oceanol, Key Labs Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China; [Xu Hongzhou; Lin Jing] E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China; [Shen Jian] Coll William & Mary, Virginia Inst Marine Sci, Gloucester Point, VA 23062 USA
项目归属: LED
摘要: A three-dimensional numerical model, EFDC (environmental fluid dynamics code) is applied to the Pamlico River Estuary (PRE) in eastern North Carolina of the United States to examine the wind impact on pollutant age distributions and residence time. A series of model experiments, representing base case, remote-wind-induced water level set-up and local winds cases are conducted. Model results indicate that the pollutant mean age and the system residence time are function,; of gravitational circulation in the PRE. The system responses to remote-wind-induced water level set-up arc different in different portions of the PRE. Under such condition, dissolved substances ill file upstream portion of the PRE have a younger age and shorter residence time (compared with the base case), by contrast, they have a older age and longer residence time in the downstream portion of the PRE. Upriver and downriver local winds appear to have opposite impacts on pollutant age distributions. The substances are retained much longer within the PRE under upriver wind than those under downriver wind. The model results also suggest that across - river winds may lead to longer residence time through enhanced turbulence Mixing, which slows down the gravitational circulation in the PRE.
WOS记录号: WOS:000259383400015
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5967
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
Xu, HZ; Lin, J; Shen, J; Wang, DX.Wind impact on pollutant transport in a shallow estuary,ACTA OCEANOLOGICA SINICA,2008,27(3):147-160
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文件名: W ind impact on pollutant transport in a shallow estuary.pdf
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