DOI: 10.1175/JCLI-D-16-0805.1
Scopus记录号: 2-s2.0-85041965075
论文题名: Interannual variability of summer tropical cyclone rainfall in the western North Pacific depicted by CFSR and associated large-scale processes and ISO modulations
作者: Chen J.-M. ; Tan P.-H. ; Wu L. ; Chen H.-S. ; Liu J.-S. ; Shih C.-F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 5 起始页码: 1771
结束页码: 1787
语种: 英语
英文关键词: Atmospheric circulation
; Interannual variability
; Intraseasonal variability
; Rainfall
; Tropical cyclones
Scopus关键词: Atmospheric pressure
; Atmospheric thermodynamics
; Climate change
; Climatology
; Hurricanes
; Modulation
; Nickel
; Oceanography
; Rain
; Storms
; Surface waters
; Tropics
; Atmospheric circulation
; Environmental process
; Interannual variability
; Intraseasonal oscillations
; Intraseasonal variability
; Sea surface temperature (SST)
; Tropical cyclone
; Western North Pacific
; Tropical engineering
英文摘要: This study examines the interannual variability of summer tropical cyclone (TC) rainfall (TCR) in the western North Pacific (WNP) depicted by the Climate Forecast System Reanalysis (CFSR). This interannual variability exhibits a maximum region near Taiwan (19°-28°N, 120°-128°E). Significantly increased TCR in this region is modulated by El Niño-Southern Oscillation (ENSO)-related large-scale processes. They feature elongated sea surface temperature warming in the tropical eastern Pacific and a southeastward-intensified monsoon trough. Increased TC movements are facilitated by interannual southerly/southeasterly flows in the northeastern periphery of the intensified monsoon trough to move from the tropical WNP toward the region near Taiwan, resulting in increased TCR. The coherent dynamic relations between interannual variability of summer TCR and large-scale environmental processes justify CFSR as being able to reasonably depict interannual characteristics of summer TCR in the WNP. For intraseasonal oscillation (ISO) modulations, TCs tend to cluster around the center of a 10-24-day cyclonic anomaly and follow its northwestward propagation from the tropical WNP toward the region near Taiwan. The above TC movements are subject to favorable background conditions provided by a northwest-southeasterly extending 30-60-day cyclonic anomaly. Summer TCR tends to increase (decrease) during El Niño (La Niña) years and strong (weak) ISO years. By comparing composite TCR anomalies and correlations with TCR variability, it is found that ENSO is more influential than ISO in modulating the interannual variability of summer TCR in the WNP. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111612
Appears in Collections: 气候减缓与适应
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作者单位: Department of Maritime Information and Technology, National Kaohsiung Marine University, Kaohsiung, Taiwan; Department of Applied History, National Chiayi University, Chiayi, Taiwan; Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Marine Meteorology Center, Central Weather Bureau, Taipei, Taiwan
Recommended Citation:
Chen J.-M.,Tan P.-H.,Wu L.,et al. Interannual variability of summer tropical cyclone rainfall in the western North Pacific depicted by CFSR and associated large-scale processes and ISO modulations[J]. Journal of Climate,2018-01-01,31(5)