气候变化领域集成服务门户(CCPortal): The influence of wintertime SST variability in the Western North Pacific on ENSO diversity

CCPortal

DOI	10.1007/s00382-020-05193-7
	The influence of wintertime SST variability in the Western North Pacific on ENSO diversity
	Fosu B.; He J.; Wang S.-Y.S.
发表日期	2020
ISSN	0930-7575
起始页码	3641
结束页码	3654
卷号	54
英文摘要	Sea surface temperature anomalies (SSTa) in the Western North Pacific (WNP) have been linked to the development of El Niño Southern Oscillation (ENSO) events a full year in advance. However, the contribution of the WNP precursor to the temporal evolution and spatial complexity of ENSO remains unclear. Using the preindustrial experiment of the Community Earth System Model as the control climate, a partially coupled experiment is conducted in which WNP SSTa are restored to the model climatology. By comparing the perturbed experiment to the control, we are able to clearly characterize ENSO’s response to WNP SST variability. We find that the WNP is predominantly linked to eastern Pacific (EP) ENSO events. Without SST variability in the WNP, central Pacific (CP) ENSO events are more likely to develop. This variation in ENSO flavor is controlled by how the WNP projects onto wind stress anomalies in the western equatorial Pacific, which in turn impacts the discharge and recharge of ocean heat during the ENSO cycle. Specifically, the removal of SSTa in the WNP weakens the buildup of ocean heat in the western equatorial Pacific, which then hinders the development of EP-type events. © 2020, The Author(s).
语种	英语
scopus关键词	climatology; El Nino-Southern Oscillation; heat transfer; sea surface temperature; temperature anomaly; temporal evolution; wind stress; winter; Pacific Ocean; Pacific Ocean (Central); Pacific Ocean (East); Pacific Ocean (Equatorial); Pacific Ocean (North)
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/145516
作者单位	School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; Department of Plants, Soils, and Climate and Utah Climate Center, Utah State University, Logan, UT, United States
推荐引用方式 GB/T 7714	Fosu B.,He J.,Wang S.-Y.S.. The influence of wintertime SST variability in the Western North Pacific on ENSO diversity[J],2020,54.
APA	Fosu B.,He J.,&Wang S.-Y.S..(2020).The influence of wintertime SST variability in the Western North Pacific on ENSO diversity.Climate Dynamics,54.
MLA	Fosu B.,et al."The influence of wintertime SST variability in the Western North Pacific on ENSO diversity".Climate Dynamics 54(2020).