Effects of Swell Waves on Atmospheric Boundary Layer Turbulence: A Low Wind Field Study

doi:10.1029/2019JC015153

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Effects of Swell Waves on Atmospheric Boundary Layer Turbulence: A Low Wind Field Study
	Zou, Zhongshui 7,8; Song, Jinbao 8; Li, Peiliang 8; Huang, Jian 6; Zhang, Jun A.4,5; Wan, Zhanhong 8; Li, Shuiqing 1,2,3
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2019-08-01
卷号	124 期号:8 页码:5671-5685
关键词	swell waves wind stress atmospheric boundary layer turbulence air-sea interactions
ISSN号	2169-9275
DOI	10.1029/2019JC015153
通讯作者	Song, Jinbao(songjb@zju.edu.cn) ; Huang, Jian(hj@grmc.gov.cn)
英文摘要	The effect of swell waves on atmospheric boundary layer turbulence under low winds was explored using data from a fixed platform located in the South China Sea. The wind spectra, cospectra, and Ogive curve measured at a height of 8 m above the mean sea surface provided direct evidence that wind stress was affected by swell waves. To interpret such phenomena, an improved approach was derived based on the fact that the total wind stress was the vector sum of turbulent stress and wave-coherent stress. Different from the approaches of earlier studies, our approach did not align the turbulent stress with the mean wind speed. The influence of swell waves on the magnitude and direction of the total wind stress was analyzed using our approach. The results showed that the wave-coherent stress derived from our data accounted for 32% of the total wind stress. The magnitude and angle of the wind stress changed by swell waves depended on the relative angle between the turbulent stress and swell direction. Plain Language Summary A better understanding of the interactions between ocean waves and the atmospheric boundary layer (ABL) is crucial for predicting the future state of air-sea interactions and the long-term development of the climate. Many recent studies have shown that the behavior of the ABL under swell waves (ocean waves with old ages) is significantly different from that under young waves. In this study, we focus on the effect of swell waves on ABL turbulence by using observational data from a fixed platform located in the South China Sea. We show that swell waves can not only induce upward momentum but also absorb momentum. The change in the wind stress vector by swell waves also depends on the relative angle between the turbulent stress and swell direction. To interpret these phenomena, an improved approach is given here based on the fact that the total wind stress is the vector sum of turbulent stress and wave-coherent stress.
资助项目	National Natural Science Foundation of China[41806028] ; National Natural Science Foundation of China[41830533] ; National Natural Science Foundation of China[41606024] ; China Postdoctoral Science Foundation[2019 M65206] ; National Basic Research Program of China, Monitoring and Forecasting of Finescale Structure and Impact Assessment of Landfalling Typhoons[2015CB452800]
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000490464200019
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/163422]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Song, Jinbao; Huang, Jian
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Shandong, Peoples R China 4.NOAA, Hurricane Res Div, AOML, Miami, FL USA 5.Univ Miami, Cooperat Inst Marine & Atmospher Studies, Miami, FL USA 6.CMA, Guangzhou Inst Trop & Marine Meteorol, Guangzhou, Guangdong, Peoples R China 7.Zhejiang Univ, Ocean Res Ctr Zhou Shan, Zhoushan, Peoples R China 8.Zhejiang Univ, Ocean Coll, Zhoushan, Peoples R China
推荐引用方式 GB/T 7714	Zou, Zhongshui,Song, Jinbao,Li, Peiliang,et al. Effects of Swell Waves on Atmospheric Boundary Layer Turbulence: A Low Wind Field Study[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2019,124(8):5671-5685.
APA	Zou, Zhongshui.,Song, Jinbao.,Li, Peiliang.,Huang, Jian.,Zhang, Jun A..,...&Li, Shuiqing.(2019).Effects of Swell Waves on Atmospheric Boundary Layer Turbulence: A Low Wind Field Study.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,124(8),5671-5685.
MLA	Zou, Zhongshui,et al."Effects of Swell Waves on Atmospheric Boundary Layer Turbulence: A Low Wind Field Study".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 124.8(2019):5671-5685.