DOI: 10.1175/JCLI-D-11-00430.1
Scopus记录号: 2-s2.0-84866996971
论文题名: Changes in western Pacific tropical cyclones associated with the El Niño-southern oscillation cycle
作者: Li R.C.Y. ; Zhou W.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 17 起始页码: 5864
结束页码: 5878
语种: 英语
Scopus关键词: Climate variability
; Correlation studies
; Dominant factor
; Empirical orthogonal function analysis
; ENSO
; ENSO cycle
; Environmental factors
; Interannual variability
; Moist static energy
; Oscillation cycles
; Relative vorticity
; Transition period
; Transition phase
; Tropical cyclone
; Tropical depressions
; Tropical storms
; Vertical wind shear
; Western Pacific
; Atmospheric pressure
; Climatology
; Factor analysis
; Hurricanes
; Wavelet analysis
; Nickel compounds
; annual variation
; climate variation
; correlation
; El Nino-Southern Oscillation
; environmental factor
; hurricane
; La Nina
; tropical cyclone
; typhoon
; upper ocean
; vorticity
; wavelet analysis
; wind shear
; Pacific Ocean
; Pacific Ocean (West)
英文摘要: This study examines the interannual variability of three groups of tropical cyclones (TCs)-super typhoons (STYs), typhoons (TYs), and tropical storms and tropical depressions (TSTDs)-and their relationship with the El Niñ o-Southern Oscillation (ENSO). Both wavelet analysis and correlation studies of upper-ocean heat content reveal significant differences for the three types of TCs. In particular, an increase (decrease) in the frequency of STYs is usually associated with the mature phase of El Niño (La Niñ a) events, while the converse is true for TSTDs. In contrast, the frequency of TYs increases (decreases) during the transition period from La Niñ a to El Niñ o (El Niño to La Niñ a) events. The results suggest that the timing with which ENSO impacts STYs, TYs, and TSTDs varies and that their corresponding changes in frequency closely follow the evolution of the ENSO cycle. Empirical orthogonal function analysis is also conducted to investigate the impact of different environmental factors influenced by ENSO on TCs. The vertical wind shear and moist static energy associated with ENSOare identified as the dominant factors that control the frequency of STYs. In comparison, the frequency of TYs is found to be closely related to the relative vorticity and vertical wind shear associated with both the transition phase of ENSO and with other types of climate variability. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52258
Appears in Collections: 气候变化事实与影响
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作者单位: Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Hong Kong
Recommended Citation:
Li R.C.Y.,Zhou W.. Changes in western Pacific tropical cyclones associated with the El Niño-southern oscillation cycle[J]. Journal of Climate,2012-01-01,25(17)