DOI: 10.1175/JCLI-D-12-00178.1
Scopus记录号: 2-s2.0-84874808233
论文题名: Diurnal cycle in different weather regimes and rainfall variability over borneo associated with ENSO
作者: Qian J.-H. ; Robertson A.W. ; Moron V.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 5 起始页码: 1772
结束页码: 1790
语种: 英语
Scopus关键词: Austral summers
; Climate prediction centers
; Climate variability
; Coastal regions
; Dipole patterns
; Diurnal cycle
; Diurnal effects
; Global precipitation
; Interannual variability
; Land-sea breeze
; Low-level winds
; Maritime Continent
; Morphing techniques
; National center for atmospheric researches
; National centers for environmental predictions
; Off-shore
; Precipitation anomalies
; Quick scatterometer satellites
; Rain gauges
; Rainfall anomaly
; Rainfall generation
; Rainfall variability
; Reanalysis
; Sea breeze
; Sea winds
; Tropical variability
; Wake effect
; Weather regimes
; Weather types
; Atmospheric pressure
; Climatology
; Landforms
; Lasers
; Nickel compounds
; Wakes
; Wind
; Rain
; annual variation
; climate variation
; diurnal variation
; El Nino-Southern Oscillation
; monsoon
; precipitation assessment
; rainfall
; raingauge
; regional climate
; satellite data
; satellite imagery
; sea breeze
; spatial distribution
; tropical meteorology
; Borneo
英文摘要: The interannual variability of precipitation over the island of Borneo in association with El Niño-Southern Oscillation (ENSO) has been studied by using the Global Precipitation Climatology Centre (GPCC) gridded rain gauge precipitation, the NOAA Climate Prediction Center (CPC) Morphing Technique (CMORPH) satellite estimated precipitation, the Quick Scatterometer (QuikSCAT) satellite estimated sea winds, and the National Centers for Environmental Prediction (NCEP)-National Center for Atmospheric Research (NCAR) reanalysis data. Analysis of the GPCC precipitation shows a dipolar structure of wet southwest versus dry central and northeast in precipitation anomalies associated with El Niño over Borneo Island during the austral summer [December-February (DJF)]. By using the 0.25 ° and 3-hourly CMORPH precipitation, it is found that rainfall over Borneo is strongly affected by the diurnal cycle of land-sea breezes. The spatial distribution of rainfall over Borneo depends on the direction of monsoonal winds. Weather typing analysis indicates that the dipolar structure of rainfall anomalies associated with ENSO is caused by the variability in the frequency of occurrence of different weather types. Rainfall is enhanced in the coastal region where sea breezes head against off-shore synoptic-scale low-level winds (i.e., in the lee side or wake area of the island), which is referred to here as the "wake effect." In DJF of El Niño years, the northwesterly austral summer monsoon in southern Borneo is weaker than normal over the Maritime Continent and easterly winds are more frequent than normal over Borneo, acting to enhance rainfall over the southwest coast of the island. This coastal rainfall generation mechanism in different weather types explains the dipole pattern of a wet southwest versus dry northeast in the rainfall anomalies over Borneo Island in the El Niño years. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51997
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental, Earth and Atmospheric Sciences, University of Massachusetts, Lowell, MA, United States; International Research Institute for Climate and Society, Columbia University, Palisades, NY, United States; CEREGE, UMR 6635 CNRS, Aix-Marseilles University, Aix en Provence, and Institut Universitaire de France, Paris, France
Recommended Citation:
Qian J.-H.,Robertson A.W.,Moron V.. Diurnal cycle in different weather regimes and rainfall variability over borneo associated with ENSO[J]. Journal of Climate,2013-01-01,26(5)