DOI: 10.1002/2013GL057866
论文题名: Improved simulation of extreme precipitation in a high-resolution atmosphere model
作者: Kopparla P. ; Fischer E.M. ; Hannay C. ; Knutti R.
刊名: Geophysical Research Letters
ISSN: 0094-8399
EISSN: 1944-8130
出版年: 2013
卷: 40, 期: 21 起始页码: 5803
结束页码: 5808
语种: 英语
英文关键词: atmospheric model
; extreme precipitation
; GCM
; high resolution
Scopus关键词: Atmospheric model
; Atmospheric simulations
; Extreme precipitation
; Extreme precipitation events
; GCM
; High resolution
; High-resolution models
; Precipitation extremes
; Models
; Precipitation (meteorology)
; Computer simulation
; atmospheric modeling
; climate modeling
; general circulation model
; numerical model
; precipitation (climatology)
; precipitation assessment
; resolution
; Australia
; United States
英文摘要: Climate models often underestimate the magnitude of extreme precipitation. We compare the performance of a high-resolution (∼0.25°) time-slice atmospheric simulation (1979-2005) of the Community Earth System Model 1.0 in representing daily extreme precipitation events against those of the same model at lower resolutions (∼1° and 2°). We find significant increases in the simulated levels of daily extreme precipitation over Europe, the United States, and Australia. In many cases the increase in high percentiles (>95th) of daily precipitation leads to better agreement with observational data sets. For lower percentiles, we find that increasing resolution does not significantly increase values of simulated precipitation. We argue that the reduced biases mainly result from the higher resolution models resolving more key physical processes controlling heavy precipitation. We conclude that while high resolution is vital for accurately simulating extreme precipitation, considerable biases remain at the highest available model resolutions. Key Points Very high resolved AGCM simulates enhanced precipitation extremes Model biases reduced over US and Europe but enhanced over Australia High resolution models show promise for better simulating extreme precipitation ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887510487&doi=10.1002%2f2013GL057866&partnerID=40&md5=7d425c64dba6ca90f05f980fea396a4e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5663
Appears in Collections: 气候减缓与适应
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作者单位: Institute for Atmospheric and Climate Science, ETH Zürich, Zürich, Switzerland
Recommended Citation:
Kopparla P.,Fischer E.M.,Hannay C.,et al. Improved simulation of extreme precipitation in a high-resolution atmosphere model[J]. Geophysical Research Letters,2013-01-01,40(21).