DOI: 10.1007/s00382-015-2536-y
Scopus记录号: 2-s2.0-84947493411
论文题名: Interdecadal change in typhoon genesis condition over the western North Pacific
作者: Choi Y. ; Ha K.-J. ; Ho C.-H. ; Chung C.E.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-11-12 起始页码: 3243
结束页码: 3255
语种: 英语
英文关键词: Genesis condition
; Interdecadal change
; SST gradient
; Typhoon activity
; Typhoon frequency
; Vertical wind shear
英文摘要: The interdecadal changes in typhoon (categories 1–3) frequency and its genesis condition over the western North Pacific during the period of 1979–2011 are investigated with consideration for discrepancies among best track datasets. To tide over data uncertainty, a detection-produced dataset is utilized as a homogeneous dataset with five available best track datasets. Typhoon experienced interdecadal changes around the mid-1990s and the mid-2000s in their genesis conditions. Even under the oceanic warm state, typhoon frequency has decreased since the mid-1990s, showing a northwestward movement of its genesis location over the main formation region. The eastward gradient of vertical wind shear is the most significant factor for the change in typhoon genesis condition in recent decades. The vertical wind shear behavior is strongly linked with zonal asymmetry of local SST. We demonstrate that a westward gradient of local SST is the most important modulator of the recent typhoon behavior through the movement of favorable genesis location. The present results indicate that the horizontal distribution, not magnitude, of local SST can be a key factor for prediction of future typhoon activity, thus contributing to natural disaster mitigation and climate change adaptation strategies. © 2015, Springer-Verlag Berlin Heidelberg. 资助项目: NRF, National Research Foundation of Korea
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53932
Appears in Collections: 过去全球变化的重建
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作者单位: Division of Earth Environmental System, Pusan National University, Busan, South Korea; Climate Physics Laboratory, School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Division of Atmospheric Sciences, Desert Research Institute, Reno, United States
Recommended Citation:
Choi Y.,Ha K.-J.,Ho C.-H.,et al. Interdecadal change in typhoon genesis condition over the western North Pacific[J]. Climate Dynamics,2015-01-01,45(2017-11-12)