气候变化领域集成服务门户(CCPortal): Directional Characteristic of Wind Stress Vector Under Swell-Dominated Conditions

CCPortal

DOI	10.1029/2020JC016352
	Directional Characteristic of Wind Stress Vector Under Swell-Dominated Conditions
	Chen S.; Qiao F.; Xue Y.; Chen S.; Ma H.
发表日期	2020
ISSN	21699275
卷号	125 期号:7
英文摘要	The wind stress vector over the ocean surface is often misaligned with the wind direction; this misalignment in a swell-dominated regime is not well investigated. Directional characteristic of the wind stress vector under swell-dominated conditions is analyzed through direct flux observations taken over the coastal region in the northern South China Sea. Observational Ogive curves demonstrate that an additional velocity component induced by a strong swell at wind speeds below 4 m/s can be captured at a height of 17 m away from the sea surface. Our results show that swell can cause a deviation in the wind stress from the wind direction, and the stress vectors mostly reside between the wind direction and the opposite swell direction under low to moderate wind and strong background swell conditions. Further directional analysis indicates that the deviation in the stress vector from the wind vector is mainly governed by the speeds and directions of the wind and swell. With the increase in the wind speed and inverse wave age, this deviation decreases and becomes less scattered; additionally, it increases with the angle between the wind and swell directions, and a linear relation is proposed at wind speeds greater than 6 m/s. © 2020. The Authors.
英文关键词	field measurements; ocean swells; stress direction; swell-induced boundary layer; wind stress vector
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186779
作者单位	First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Key Laboratory of Marine Sciences and Numerical Modeling, Ministry of Natural Resources, Qingdao, China
推荐引用方式 GB/T 7714	Chen S.,Qiao F.,Xue Y.,et al. Directional Characteristic of Wind Stress Vector Under Swell-Dominated Conditions[J],2020,125(7).
APA	Chen S.,Qiao F.,Xue Y.,Chen S.,&Ma H..(2020).Directional Characteristic of Wind Stress Vector Under Swell-Dominated Conditions.Journal of Geophysical Research: Oceans,125(7).
MLA	Chen S.,et al."Directional Characteristic of Wind Stress Vector Under Swell-Dominated Conditions".Journal of Geophysical Research: Oceans 125.7(2020).