DOI: 10.1002/2014GL059532
论文题名: The robust dynamical contribution to precipitation extremes in idealized warming simulations across model resolutions
作者: Lu J. ; Ruby Leung L. ; Yang Q. ; Chen G. ; Collins W.D. ; Li F. ; Jason Hou Z. ; Feng X.
刊名: Geophysical Research Letters
ISSN: 0094-10156
EISSN: 1944-9887
出版年: 2014
卷: 41, 期: 8 起始页码: 2971
结束页码: 2978
语种: 英语
英文关键词: circulation shift
; global warming
; precipitation extreme
Scopus关键词: Climate models
; Global warming
; Probability density function
; Clausius Clapeyron relation
; Community atmosphere model
; Mid-latitude storms
; Precipitation events
; Precipitation extremes
; Precipitation process
; Sea surface temperature (SST)
; Vertical structures
; Computer simulation
; climate modeling
; extreme event
; precipitation (climatology)
; precipitation intensity
; probability density function
; sea surface temperature
; storm track
; warming
英文摘要: The impact of the circulation shift under climate warming on the distribution of precipitation extremes and the associated sensitivity to model resolution are investigated using Community Atmosphere Model Version 3.0 in an aquaplanet configuration. The response of the probability density function of the precipitation to a uniform sea surface temperature warming can be interpreted as superimposition of a dynamically induced poleward shift and a thermodynamically induced upward shift toward higher intensities, which give rise to manyfold increase in the frequency of the most extreme categories of the precipitation events at the poleward side of the midlatitude storm track. Coarser resolutions underestimate not only the intensity of the precipitation extremes but also the dynamical contribution to the increase of precipitation extremes. Meanwhile, the thermodynamic contribution to the intensification of the precipitation extremes is substantially less than expected from the Clausius-Clapeyron relation, implicative of significant change in the vertical structure of the precipitation processes. Key Points Provide confidence and rationale in the robust changes of precip extremes Show sign of convergence for certain categories of precipitation extremes ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899034390&doi=10.1002%2f2014GL059532&partnerID=40&md5=ee0c1c5ae68f0f0a544d5cf4f306b23f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7420
Appears in Collections: 气候减缓与适应
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作者单位: Pacific Northwest National Laboratory, Richland, WA, United States
Recommended Citation:
Lu J.,Ruby Leung L.,Yang Q.,et al. The robust dynamical contribution to precipitation extremes in idealized warming simulations across model resolutions[J]. Geophysical Research Letters,2014-01-01,41(8).