Effect of Langmuir circulation on upper ocean mixing in the South China Sea

doi:10.1007/s13131-013-0285-5

IOCAS-IR > 海洋环流与波动重点实验室

	Effect of Langmuir circulation on upper ocean mixing in the South China Sea
	Li Shuang1,2 ; Song Jinbao 1; Fan Wei 1; Li, S
	2013-03-01
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
卷号	32 期号:3 页码:28-33
文章类型	Article
摘要	Effect of Langmuir circulation (LC) on upper ocean mixing is investigated by a two-way wave-current coupled model. The model is coupled of the ocean circulation model ROMS (regional ocean modeling system) to the surface wave model SWAN (simulating waves nearshore) via the model-coupling toolkit. The LC already certified its importance by many one-dimensional (1D) research and mechanism analysis work. This work focuses on inducing LC's effect in a three-dimensional (3-D) model and applying it to real field modeling. In ROMS, the Mellor-Yamada turbulence closure mixing scheme is modified by including LC's effect. The SWAN imports bathymetry, free surface and current information from the ROMS while exports significant wave parameters to the ROMS for Stokes wave computing every 6s. This coupled model is applied to the South China Sea (SCS) during September 2008 cruise. The results show that LC increasing turbulence and deepening mixed layer depth (MLD) at order of 0 (10 m) in most of the areas, especially in the north part of SCS where most of our measurements operated. The coupled model further includes wave breaking which will brings more energy into water. When LC works together with wave breaking, more energy is transferred into deep layer and accelerates the MLD deepening. In the north part of the SCS, their effects are more obvious. This is consistent with big wind event in the area of the Zhujiang River Delta. The shallow water depth as another reason makes them easy to influence the ocean mixing as well.; Effect of Langmuir circulation (LC) on upper ocean mixing is investigated by a two-way wave-current coupled model. The model is coupled of the ocean circulation model ROMS (regional ocean modeling system) to the surface wave model SWAN (simulating waves nearshore) via the model-coupling toolkit. The LC already certified its importance by many one-dimensional (1D) research and mechanism analysis work. This work focuses on inducing LC's effect in a three-dimensional (3-D) model and applying it to real field modeling. In ROMS, the Mellor-Yamada turbulence closure mixing scheme is modified by including LC's effect. The SWAN imports bathymetry, free surface and current information from the ROMS while exports significant wave parameters to the ROMS for Stokes wave computing every 6s. This coupled model is applied to the South China Sea (SCS) during September 2008 cruise. The results show that LC increasing turbulence and deepening mixed layer depth (MLD) at order of 0 (10 m) in most of the areas, especially in the north part of SCS where most of our measurements operated. The coupled model further includes wave breaking which will brings more energy into water. When LC works together with wave breaking, more energy is transferred into deep layer and accelerates the MLD deepening. In the north part of the SCS, their effects are more obvious. This is consistent with big wind event in the area of the Zhujiang River Delta. The shallow water depth as another reason makes them easy to influence the ocean mixing as well.
关键词	Langmuir Circulation Upper Ocean Mixing Wave Breaking South China Sea
学科领域	Oceanography
DOI	10.1007/s13131-013-0285-5
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000316239100004
WOS关键词	LARGE-EDDY SIMULATION ; MIXED-LAYER ; BOUNDARY-LAYER ; WAVE ; TURBULENCE ; MODEL ; WIND
WOS标题词	Science & Technology ; Physical Sciences
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16404
专题	海洋环流与波动重点实验室
通讯作者	Li, S
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Zhejiang Univ, Dept Ocean Sci & Engn, Hangzhou 310058, Zhejiang, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Li Shuang,Song Jinbao,Fan Wei,et al. Effect of Langmuir circulation on upper ocean mixing in the South China Sea[J]. ACTA OCEANOLOGICA SINICA,2013,32(3):28-33.
APA	Li Shuang,Song Jinbao,Fan Wei,&Li, S.(2013).Effect of Langmuir circulation on upper ocean mixing in the South China Sea.ACTA OCEANOLOGICA SINICA,32(3),28-33.
MLA	Li Shuang,et al."Effect of Langmuir circulation on upper ocean mixing in the South China Sea".ACTA OCEANOLOGICA SINICA 32.3(2013):28-33.

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