Processes involved in the second-year warming of the 2015 El Nio event as derived from an intermediate ocean model

IOCAS-IR

	Processes involved in the second-year warming of the 2015 El Nio event as derived from an intermediate ocean model
	ZHANG RongHua; GAO Chuan
发表期刊	Science China(Earth Sciences)
ISSN	1674-7313
	2017-09-01
出版年	2017
卷号	v.60 期号:09 页码:37-49
文献类型	CNKI期刊论文
摘要	The tropical Pacific experienced a sustained warm sea surface condition that started in 2014 and a very strong El Nio event in 2015. One striking feature of this event was the horseshoe-like pattern of positive subsurface thermal anomalies that was sustained in the western-central equatorial Pacific throughout 2014–2015. Observational data and an intermediate ocean model are used to describe the sea surface temperature(SST) evolution during 2014–2015. Emphasis is placed on the processes involved in the 2015 El Nio event and their relationships with SST anomalies, including remote effects associated with the propagation and reflection of oceanic equatorial waves(as indicated in sea level(SL) signals) at the boundaries and local effects of the positive subsurface thermal anomalies. It is demonstrated that the positive subsurface thermal anomaly pattern that was sustained throughout 2014–2015 played an important role in maintaining warm SST anomalies in the equatorial Pacific. Further analyses of the SST budget revealed the dominant processes contributing to SST anomalies during 2014–2015. These analyses provide an improved understanding of the extent to which processes associated with the 2015 El Nio event are consistent with current El Nio and Southern Oscillation theories.
关键词	2015 El Nio event Intermediate ocean model Process analyses SST budget
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A009;A010;
CNKI专题名称	气象学;海洋学;
分类号	P732
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	supported by the National Natural Science Foundation of China (Grant Nos. 41690122, 41690120, 41490644, 41490640 & 41475101) ; AoShan Talents Program Supported by Qingdao National Laboratory for Marine Science and Technology (Grant No. 2015ASTP) ; the Chinese Academy of Sciences Strategic Priority Project ; the Western Pacific Ocean System(Grant Nos. XDA11010105 & XDA11020306) ; the National Natural Science Foundation of China-Shandong Joint Fund for Marine Science Research Centers (Grant No. U1406401) ; the National Natural Science Foundation of China Innovative Group Grant (Grant No. 41421005) ; Taishan Scholarship and Qingdao Innovative Program (Grant No. 2014GJJS0101) ; China Postdoctoral Science Foundation ; Qingdao Postdoctoral Application Research Project
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/189212
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 2.LaboratoryforOceanandClimateDynamics,QingdaoNationalLaboratoryforMarineScienceandTechnology 3.UniversityofChineseAcademyofSciences
推荐引用方式 GB/T 7714	ZHANG RongHua,GAO Chuan. Processes involved in the second-year warming of the 2015 El Nio event as derived from an intermediate ocean model. 2017.