DOI: 10.1007/s00382-016-2986-x
Scopus记录号: 2-s2.0-84955621694
论文题名: Influence of climate regime shift on the interdecadal change in tropical cyclone activity over the Pacific Basin during the middle to late 1990s
作者: Hong C.-C. ; Wu Y.-K. ; Li T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期: 2017-07-08 起始页码: 2587
结束页码: 2600
语种: 英语
英文关键词: Climate regime shift
; Interdecadal change
; Pacific Basin
; Tropical cyclone activity
英文摘要: In this study, a new interpretation is proposed for the abrupt decrease in tropical cyclone (TC) activity in the western North Pacific (WNP) after the late 1990s. We hypothesize that this abrupt change constitutes a part of the phenomenon of interdecadal change in TC activity in the Pacific Basin, including the WNP, western South Pacific (WSP), and eastern North Pacific. Our analysis revealed that the climate-regime shift (CRS) in the Pacific during the middle to late 1990s resulted in a La Niña-like mean state, which was responsible for the interdecadal change in TC activity in the late 1990s. Analyses of the TC genesis potential index and numerical experiments revealed that the decline in TC activity in both the WNP and WSP was primarily attributable to the increase of vertical wind shear in the central Pacific due to the La Niña-like associated cold sea surface temperature (SST). Conversely, the La Niña-like associated warm SST in the western Pacific produced anomalous vertical transport of water vapor, increasing moisture levels in the mid-troposphere and TC activity in the western WNP. Furthermore, the CRS modified the mean TC genesis position and shifted the steering flow to the west, resulting in the increased frequency of TC landfalls in Taiwan, southeastern China, and northern Australia after the late 1990s. © 2016, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53499
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, 1 Ai Kuo West Road, Taipei, Taiwan; Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan; IPRC/SOEST, University of Hawaii at Manoa, Honolulu, HI, United States
Recommended Citation:
Hong C.-C.,Wu Y.-K.,Li T.. Influence of climate regime shift on the interdecadal change in tropical cyclone activity over the Pacific Basin during the middle to late 1990s[J]. Climate Dynamics,2016-01-01,47(2017-07-08)