DOI: 10.1175/JCLI-D-16-0097.1
Scopus记录号: 2-s2.0-84987994881
论文题名: The rain is askew: Two idealized models relating vertical velocity and precipitation distributions in a warming world
作者: Pendergrass A.G. ; Gerber E.P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 18 起始页码: 6445
结束页码: 6462
语种: 英语
Scopus关键词: Atmospheric humidity
; Budget control
; Climate change
; Climate models
; Higher order statistics
; Precipitation (chemical)
; Precipitation (meteorology)
; Velocity
; Velocity distribution
; Atmospheric energy
; Changing distributions
; Mean precipitation
; Precipitation distribution
; Rainfall distribution
; Vertical motions
; Vertical velocity
; Vertical velocity distribution
; Rain
英文摘要: As the planet warms, climate models predict that rain will become heavier but less frequent and that the circulation will weaken. Here, two heuristic models relating moisture, vertical velocity, and rainfall distributions are developed-one in which the distribution of vertical velocity is prescribed and another in which it is predicted. These models are used to explore the response to warming and moistening as well as changes in circulation, atmospheric energy budget, and stability. Some key assumptions of the models include that relative humidity is fixed within and between climate states and that stability is constant within each climate state. The first model shows that an increase in skewness of the vertical velocity distribution is crucial for capturing salient characteristics of the changing distribution of rain, including the muted rate of mean precipitation increase relative to extremes and the decrease in the total number or area of rain events. The second model suggests that this increase in the skewness of the vertical velocity arises from the asymmetric impact of latent heating on vertical motion. © 2016 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50315
Appears in Collections: 气候变化事实与影响
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作者单位: National Center for Atmospheric Research, Boulder, CO, United States; Center for Atmosphere and Ocean Sciences, Courant Institute, New York University, New York, NY, United States; CIRES, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Pendergrass A.G.,Gerber E.P.. The rain is askew: Two idealized models relating vertical velocity and precipitation distributions in a warming world[J]. Journal of Climate,2016-01-01,29(18)