Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob

doi:10.1175/JCLI-D-17-0149.1

	Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob
	Liang, Yu-Chiao 1; Yu, Jin-Yi 1; Saltzman, Eric S.1; Wang, Fan 2
刊名	JOURNAL OF CLIMATE
	2017-11-01
卷号	30 期号:22 页码:9041-9057
ISSN号	0894-8755
DOI	10.1175/JCLI-D-17-0149.1
文献子类	Article
英文摘要	During 2013-15, prolonged near-surface warming in the northeastern Pacific was observed and has been referred to as the Pacific warm blob. Here, statistical analyses are conducted to show that the generation of the Pacific blob is closely related to the tropical Northern Hemisphere (TNH) pattern in the atmosphere. When the TNH pattern stays in its positive phase for extended periods of time, it generates prolonged blob events primarily through anomalies in surface heat fluxes and secondarily through anomalies in wind-induced ocean advection. Five prolonged (>= 24 months) blob events are identified during the past six decades (1948-2015), and the TNH-blob relationship can be recognized in all of them. Although the Pacific decadal oscillation and El Nino can also induce an arc-shaped warming pattern near the Pacific blob region, they are not responsible for the generation of Pacific blob events. The essential feature of Pacific blob generation is the TNH-forced Gulf of Alaska warming pattern. This study also finds that the atmospheric circulation anomalies associated with the TNH pattern in the North Atlantic can induce SST variability akin to the so-called Atlantic cold blob, also through anomalies in surface heat fluxes and wind-induced ocean advection. As a result, the TNH pattern serves as an atmospheric conducting pattern that connects some of the Pacific warm blob and Atlantic cold blob events. This conducting mechanism has not previously been explored.
WOS关键词	GEOPOTENTIAL HEIGHT FIELD ; MIDLATITUDE WEATHER ; ATMOSPHERIC CIRCULATION ; TELECONNECTION PATTERNS ; DECADAL OSCILLATION ; CALIFORNIA DROUGHT ; CLIMATE-CHANGE ; NE PACIFIC ; WINTER ; TEMPERATURE
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER METEOROLOGICAL SOC
WOS记录号	WOS:000416488200011
资助机构	NSF's Climate and Large-scale Dynamics Program(AGS-1505145) ; NSF IR/D program
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10467]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Yu, Jin-Yi
作者单位	1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA 2.Chinese Acad Sci, Inst Oceanog, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Liang, Yu-Chiao,Yu, Jin-Yi,Saltzman, Eric S.,et al. Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob[J]. JOURNAL OF CLIMATE,2017,30(22):9041-9057.
APA	Liang, Yu-Chiao,Yu, Jin-Yi,Saltzman, Eric S.,&Wang, Fan.(2017).Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob.JOURNAL OF CLIMATE,30(22),9041-9057.
MLA	Liang, Yu-Chiao,et al."Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob".JOURNAL OF CLIMATE 30.22(2017):9041-9057.