Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s

IOCAS-IR

	Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s
	Yang YX(杨宇星); Wang FM(王法明)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2012-07-15
出版年	2012
卷号	v.30 期号:04 页码:180-185
文献类型	CNKI期刊论文
摘要	Based on 48-year (1958-2006) ocean reanalysis data of Simple Ocean Data Assimilation and 23-year (1984-2006) global ocean-surface heat flux products developed by the Objectively Analyzed Air-Sea Heat Flux Project, meridional variation of the western Pacific Warm Pool (WPWP) is addressed. The results show that there is a significant expansion of the northern edge of the WPWP in the late 1990s and early 2000s. This variation is mainly within 120°E-160°E by 8°N-20°N, we define this region (120°E-160°E by 8°N-20°N) as the core region. Furthermore, analyses on upper ocean heat budget show that the short wave radiation plays a key role in the northward expansion of the northern edge of the WPWP in the core region. It is proved that the northward expansion may be caused by the change of the mixed layer which became shallower in 1994-2006 compared with 1984-1993 in the study region. The short wave radiation flux distribution within the shallower mixed layer leads to a positive anomaly in seawater temperature, promoting the northward expansion of the WPWP.
关键词	western Pacific Warm Pool (WPWP) northward expansion mixed layer
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A010;
CNKI专题名称	海洋学;
分类号	P732
收录类别	中科院核心
语种	英文;
资助项目(基金）	Supported by the National Basic Research Program of China (973 Program)(Nos.2010CB950402,2012CB417402) ; the National Natural Science Foundation of China (No.41106018)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/191192
专题	中国科学院海洋研究所
作者单位	KeyLaboratoryofOceanCirculationandWave,InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Yang YX,Wang FM. Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s. 2012.