DOI: 10.1007/s00382-014-2275-5
Scopus记录号: 2-s2.0-84932195315
论文题名: Tropical SST forcing on the anomalous WNP subtropical high during July–August 2010 and the record-high SST in the tropical Atlantic
作者: Hong C.-C. ; Lee M.-Y. ; Hsu H.-H. ; Lin N.-H. ; Tsuang B.-J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-03-04 起始页码: 633
结束页码: 650
语种: 英语
英文关键词: El Niño
; North Atlantic Oscillation
; Sea surface temperature anomalies
; Tropical Atlantic
; Western North Pacific subtropical high
英文摘要: In summer of 2010, the western North Pacific subtropical high (WNPSH) was extremely strong and exhibited unusual westward extension, which resulted in record-breaking warmth in Japan and considerably below-normal and westward-shifted tropical cyclone activity in the western North Pacific (WNP). Although a moderate La Niña occurred, the sea surface temperature (SST) in the northern Indian Ocean (NIO) and tropical Atlantic (TA) was considerably high. In this study, we argued that the La Niña cold SST alone was not sufficient to maintain the strong WNPSH of 2010, and that the unusually warm SSTs in the NIO and TA markedly contributed to the enhancement and westward shift of the WNPSH in the boreal summer of that year. We focused on the effects of sea surface temperature anomalies in the tropical Atlantic (TA-SSTAs), which have been seldom explored and are poorly understood compared with the effects of SSTAs in the tropical Pacific and NIO. The warm TA-SST forced a westward-extending overturning circulation, with a sinking branch over the central Pacific Ocean, which produced a remote response similar to the La Niña condition and enhanced the WNPSH. The warm TA-SST also induced the cyclonic anomaly in the tropical eastern North Pacific, a distinct phenomenon not observed in a canonical La Niña event. Furthermore, we demonstrated that the anomalous near-surface circulation associated with the negative North Atlantic Oscillation might play a more dominant role than that of the 2009 El Niño in inducing the record-high SST in the TA in 2010. © 2014, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54067
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth and Life, University of Taipei, Taipei, Taiwan; Central Weather Bureau, Taipei, Taiwan; Research Center for Environmental Changes, Academia Sinica, 128 Academia Road, Section 2 Nankang, Taipei, Taiwan; Department of Environmental Engineering, National Chung Hsing University, Taichung, Taiwan
Recommended Citation:
Hong C.-C.,Lee M.-Y.,Hsu H.-H.,et al. Tropical SST forcing on the anomalous WNP subtropical high during July–August 2010 and the record-high SST in the tropical Atlantic[J]. Climate Dynamics,2015-01-01,45(2017-03-04)