DOI: 10.1002/2015GL064183
论文题名: How does increasing horizontal resolution in a global climate model improve the simulation of aerosol-cloud interactions?
作者: Ma P.-L. ; Rasch P.J. ; Wang M. ; Wang H. ; Ghan S.J. ; Easter R.C. ; Gustafson W.I. ; Jr. ; Liu X. ; Zhang Y. ; Ma H.-Y.
刊名: Geophysical Research Letters
ISSN: 0094-8644
EISSN: 1944-8375
出版年: 2015
卷: 42, 期: 12 起始页码: 5058
结束页码: 5065
语种: 英语
英文关键词: aerosol indirect forcing
; aerosol-cloud interactions
; global climate model
; resolution dependence
Scopus关键词: Aerosols
; Drops
; Precipitation (meteorology)
; Aerosol-cloud interaction
; Anthropogenic emissions
; Community atmosphere model
; Global climate model
; Horizontal grid spacing
; Horizontal resolution
; Northern Hemispheres
; Satellite observations
; Climate models
; aerosol
; climate modeling
; cloud cover
; cloud droplet
; global climate
; Northern Hemisphere
; nucleation
; parameterization
; precipitation (climatology)
; radiative forcing
; satellite data
; spacing
英文摘要: The Community Atmosphere Model Version 5 is run at horizontal grid spacing of 2, 1, 0.5, and 0.25°, with the meteorology nudged toward the Year Of Tropical Convection analysis, and cloud simulators and the collocated A-Train satellite observations are used to explore the resolution dependence of aerosol-cloud interactions. The higher-resolution model produces results that agree better with observations, showing an increase of susceptibility of cloud droplet size, indicating a stronger first aerosol indirect forcing (AIF), and a decrease of susceptibility of precipitation probability, suggesting a weaker second AIF. The resolution sensitivities of AIF are attributed to those of droplet nucleation and precipitation parameterizations. The annual average AIF in the Northern Hemisphere midlatitudes (where most anthropogenic emissions occur) in the 0.25° model is reduced by about 1 W m-2 (-30%) compared to the 2° model, leading to a 0.26 W m-2 reduction (-15%) in the global annual average AIF. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948711317&doi=10.1002%2f2015GL064183&partnerID=40&md5=969ff8f82b189d40e8245bf6f679da5f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8260
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States
Recommended Citation:
Ma P.-L.,Rasch P.J.,Wang M.,et al. How does increasing horizontal resolution in a global climate model improve the simulation of aerosol-cloud interactions?[J]. Geophysical Research Letters,2015-01-01,42(12).