Wave-turbulence interaction and its induced mixing in the upper ocean

doi:10.1029/2009JC005853

	Wave-turbulence interaction and its induced mixing in the upper ocean
	Huang, Chuan Jiang; Qiao, Fangli
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2010-04-30
卷号	115
ISSN号	0148-0227
DOI	10.1029/2009JC005853
英文摘要	In the ocean, interaction among the mean current, the surface waves, and turbulence is a major mechanism for energy transfer from surface waves to the turbulence field. This process is associated with attenuation of surface waves. This paper deals with wave-turbulence interaction and its induced mixing using field observations and a one-dimensional, level 2.5 turbulence closure model. The results show that both the turbulence kinetic energy dissipation rate and the vertical mixing induced by wave-turbulence interaction are a function of u(s0)u()(2) and wave parameters, where u(s0) is the Stokes drift at the sea surface and u() is the friction velocity in water. The former decays with the depth away from the surface in the form of e(2kz), while the latter decays as e(3kz) (k is the wave number). We also analyze the wave decay induced by wave-turbulence interaction. The decay time scale is in proportion to cL/u(*)(2), while in inverse proportion to root delta, where c is a phase speed, L is a wavelength, and delta is a wave steepness. A series of numerical experiments are performed to evaluate the effects of wave-turbulence interaction. The results from the cases with effects of wave-turbulence interaction show significant improvement in simulation of turbulence characteristics compared to the cases in the absence of surface waves. This implies that wave-turbulence interaction is a significant mechanism for generation of turbulence kinetic energy in the upper ocean and plays an important role in regulating vertical mixing and surface wave decay.
资助项目	National Natural Science Foundation of China[40806017] ; National Natural Science Foundation of China[40730842]
WOS关键词	SURFACE GRAVITY-WAVES ; MIXED-LAYER ; BREAKING WAVES ; DISSIPATION MEASUREMENTS ; ENHANCED TURBULENCE ; ENERGY-DISSIPATION ; BOUNDARY-LAYER ; GLOBAL OCEAN ; WATER ; WIND
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000277262700002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27040]
专题	自然资源部第一海洋研究所
通讯作者	Huang, Chuan Jiang
作者单位	State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sci & Numer Modeling, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Huang, Chuan Jiang,Qiao, Fangli. Wave-turbulence interaction and its induced mixing in the upper ocean[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2010,115.
APA	Huang, Chuan Jiang,&Qiao, Fangli.(2010).Wave-turbulence interaction and its induced mixing in the upper ocean.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,115.
MLA	Huang, Chuan Jiang,et al."Wave-turbulence interaction and its induced mixing in the upper ocean".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 115(2010).