气候变化领域集成服务门户(CCPortal): Recurrence of wintertime SST anomalies in the Bay of Bengal: characteristics and causes

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DOI	10.1007/s00382-021-05693-0
	Recurrence of wintertime SST anomalies in the Bay of Bengal: characteristics and causes
	Qiu Y.; Lin X.; Jing C.
发表日期	2021
ISSN	0930-7575
起始页码	2017
结束页码	2037
英文摘要	This study investigates the winter-to-winter recurrence (WWR) of sea surface temperature anomaly (SSTA) in the Bay of Bengal (BOB) and its causes. During 1948–2016, 36% years show WWRs, which occurred over the BOB north of 13° N. The WWR of net surface heat flux (Qnet), especially the latent heat flux (Qlat) associated with change of winter monsoon wind speed, is essential for all the SSTA WWR events. The interdecadal wintertime warming (cooling) of BOB SST before (after) 1976, which is induced by the weakened (enhanced) monsoon wind and latent heat flux associated with the Interdecadal Pacific Oscillation (IPO) and decadal variability of the Indian Ocean, are the causes for the observed interdecadal variability of warm (cold) SSTA WWR. However, nearly half (48%) of the WWR events are significantly contributed from the subsurface processes, which is equivalent to ~ 26% (42%) contribution to Qnet for the warm (cold) SSTA WWR events. Different from the mid-latitude subsurface re-emergence mechanism that depends critically on wintertime mixed layer deepening, the BOB subsurface effects on WWR of SSTA are associated with shoaling/deepening thermocline, forced remotely by winds along the equator and Ekman pumping within the BOB. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
英文关键词	Bay of Bengal; Interdecadal Pacific oscillation; Recurrence; SST
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183553
作者单位	Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
推荐引用方式 GB/T 7714	Qiu Y.,Lin X.,Jing C.. Recurrence of wintertime SST anomalies in the Bay of Bengal: characteristics and causes[J],2021.
APA	Qiu Y.,Lin X.,&Jing C..(2021).Recurrence of wintertime SST anomalies in the Bay of Bengal: characteristics and causes.Climate Dynamics.
MLA	Qiu Y.,et al."Recurrence of wintertime SST anomalies in the Bay of Bengal: characteristics and causes".Climate Dynamics (2021).