DOI: 10.1175/JCLI-D-12-00060.1
Scopus记录号: 2-s2.0-84874797216
论文题名: Attribution of decadal variability in tropical cyclone passage frequency over thewestern north pacific: A new approach emphasizing the genesis location of cyclones
作者: Yokoi S. ; Takayabu Y.N.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 3 起始页码: 973
结束页码: 987
语种: 英语
Scopus关键词: Decadal timescale
; Decadal variability
; East China Sea
; Frequency variability
; Hurricanes/typhoons
; Inter-decadal variability
; Interannual
; Midlatitudes
; New approaches
; North Pacific
; Ocean basins
; Philippines
; Time-scales
; Track data
; Tropical cyclone
; Western North Pacific
; Storms
; Hurricanes
; annual variation
; decadal variation
; hurricane
; mesoscale meteorology
; oceanic circulation
; spatial distribution
; subtropical region
; tropical cyclone
; typhoon
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Variability in tropical cyclone (TC) activity is a matter of direct concern for affected populations. On interannual and longer time scales, variability in TC passage frequency can be associated with total TC frequency over the concerned ocean basin [basinwide frequency (BF)], the spatial distribution of TC genesis in the basin [genesis distribution (GD)], and the preferable track (PT) that can be considered as a function of genesis locations. To facilitate investigation of mechanisms responsible for the variability, the authors propose an approach of decomposing anomalies in the passage frequency into contributions of variability in BF, GD, and PT, which is named the Integration of Statistics on TC Activity by Genesis Location (ISTAGL) analysis. Application of this approach to TC best track data in the western North Pacific (WNP) basin reveals that overall distribution of the passage frequency trends over the 1961-2010 period is mainly due to the PT trends. On decadal time scales, passage frequency variability in midlatitudes is primarily due to PT variability, while the BF andGDalso play roles in the subtropics. The authors further discuss decadal variability over the East China Sea in detail. The authors demonstrate that northward shift of the PT for TCs generated around the Philippines Sea and westward shift for TCs generated in the eastern part of the WNP contribute the variability with almost equal degree. The relationships between these PT shifts and anomalies in environmental circulation fields are also discussed. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52045
Appears in Collections: 气候变化事实与影响
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作者单位: Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan
Recommended Citation:
Yokoi S.,Takayabu Y.N.. Attribution of decadal variability in tropical cyclone passage frequency over thewestern north pacific: A new approach emphasizing the genesis location of cyclones[J]. Journal of Climate,2013-01-01,26(3)