Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent

doi:10.1007/s13131-022-2022-4

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent
	Sun, Bowen 1,2; Li, Baofu 1; Yan, Jingyu 1; Zhou, Yuqi 1; Zhou, Shuo 1
刊名	ACTA OCEANOLOGICA SINICA
	2022-10-01
卷号	41 期号:10 页码:109-118
关键词	atmospheric response on mesoscale eddy seasonal variation subtropical countercurrent sea surface temperature-wind coupling
ISSN号	0253-505X
DOI	10.1007/s13131-022-2022-4
通讯作者	Li, Baofu(libf@qfnu.edu.cn)
英文摘要	This study investigated the seasonal variation in the atmospheric response to oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent (STCC) and its mechanism, based on satellite altimetric and reanalysis datasets. Although mesoscale eddy in the study area is more active in summer, the sea surface temperature (SST) anomaly associated with mesoscale eddies is more intense and dipolar in winter, which is largely due to the larger background SST gradient. Similarly, the impact of the oceanic eddy on sea surface wind speed and heat flux is strongest in winter, whereas its effect on precipitation rate is more significant in summer. The study revealed that the SST gradient in STCC could impact the atmosphere layer by up to 800 hPa (900 hPa) in boreal winter (summer) through the dominant vertical mixing mechanism. Moreover, the intensity of the SST gradient causes such seasonal variation in mesoscale air-sea coupling in the study region. In brief, a stronger (weaker) background SST gradient field in wintertime (summertime) leads to a larger (smaller) eddy-induced SST anomaly, thus differently impacting atmosphere instability and transitional kinetic energy flux over oceanic eddies, leading to seasonal variation in mesoscale air-sea coupling intensity.
资助项目	Shandong Provincial Natural Science Foundation[ZR2021YQ28] ; Provincial College Student Innovation Training Project[S202110446040]
WOS研究方向	Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000879044400010
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180404]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Li, Baofu
作者单位	1.Qufu Normal Univ, Sch Geog & Tourism, Rizhao 276800, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Sun, Bowen,Li, Baofu,Yan, Jingyu,et al. Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent[J]. ACTA OCEANOLOGICA SINICA,2022,41(10):109-118.
APA	Sun, Bowen,Li, Baofu,Yan, Jingyu,Zhou, Yuqi,&Zhou, Shuo.(2022).Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent.ACTA OCEANOLOGICA SINICA,41(10),109-118.
MLA	Sun, Bowen,et al."Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent".ACTA OCEANOLOGICA SINICA 41.10(2022):109-118.