Observations and numerical modeling of the Pearl River plume in summer season
Pan, JY; Gu, YZ; Wang, DX; panj@cuhk.edu.hk
2014
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
卷号119期号:4页码:2480-2500
摘要A cruise survey of the Pearl River plume during southeasterly and southwesterly winds, two typical wind patterns in summer in Guangdong coastal waters, is reported and the cruise data are analyzed to unveil the plume dynamics. The Kelvin number is derived from the in situ data, revealing that the Pearl River plume exhibits two different scales in response to the two kinds of the wind forcing. Numerical model simulations based on the regional oceanic modeling system (ROMS) with nesting domains are implemented to explore details of the plume dynamics, validated by cruise observations and tidal gauge sea level data. Modeling results suggest that there is a subtidal, anticyclonic recirculation bulge on the west side out of the estuary mouth under southeasterly winds, showing a recirculating plume in the near-field. When the wind changes to the southwesterly, however, the recirculating plume vanishes. The distinct, supercritical tidal plume front occurs with southeasterly winds prevailing in spring tide due to the strong advection in the tidal plume. The tidal salt deficit flux can reach as high as 12.5% of the mean current flux, and illustrates the combined forcing of tide and wind. Key Points The paper clarifies the Pearl River plume anatomy under two typical winds Spring tide facilitates the supercritical Pearl River tidal plume front Tide determines tidal salt deficit flux strength; wind determines the direction
部门归属[Pan, Jiayi ; Gu, Yanzhen] Chinese Univ Hong Kong, Inst Space & Earth Informat Sci, Shatin, Hong Kong, Peoples R China ; [Wang, Dongxiao] South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
关键词Pearl River Plume Cruise Observations Roms Modeling Near Far-field Wind Forcing Tides
学科领域Oceanography
资助者General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong ; General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong ; General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong ; General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong
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收录类别sci
资助项目LTO
资助者General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong ; General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong ; General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong ; General Research Fund of Hong Kong Research Grants Council (RGC) [CUHK 402912, 403113]; Hong Kong Innovation and Technology Fund [ITS/272/11, ITS/259/12]; Chinese University of Hong Kong
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10559
专题热带海洋环境国家重点实验室(LTO)
通讯作者panj@cuhk.edu.hk
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GB/T 7714
Pan, JY,Gu, YZ,Wang, DX,et al. Observations and numerical modeling of the Pearl River plume in summer season[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2014,119(4):2480-2500.
APA Pan, JY,Gu, YZ,Wang, DX,&panj@cuhk.edu.hk.(2014).Observations and numerical modeling of the Pearl River plume in summer season.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,119(4),2480-2500.
MLA Pan, JY,et al."Observations and numerical modeling of the Pearl River plume in summer season".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 119.4(2014):2480-2500.
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