DOI: 10.1002/grl.50502
论文题名: Anthropogenic sulfate aerosol and the southward shift of tropical precipitation in the late 20th century
作者: Hwang Y.-T. ; Frierson D.M.W. ; Kang S.M.
刊名: Geophysical Research Letters
ISSN: 0094-8938
EISSN: 1944-8669
出版年: 2013
卷: 40, 期: 11 起始页码: 2845
结束页码: 2850
语种: 英语
英文关键词: climate change and variability
; climate dynamics
; clouds and aerosols
; global climate models
Scopus关键词: Anthropogenic aerosols
; Atmospheric energy
; Climate dynamics
; Global climate model
; Historical simulation
; Northern Hemispheres
; Theoretical framework
; Tropical precipitation
; Aerosols
; Climate change
; Computer simulation
; Climate models
; aerosol composition
; anthropogenic effect
; climate modeling
; climate variation
; energy budget
; Northern Hemisphere
; precipitation (climatology)
; sulfate
; tropical meteorology
; twentieth century
; Africa
; Asia
; South America
英文摘要: In this paper, we demonstrate a global scale southward shift of the tropical rain belt during the latter half of the 20th century in observations and global climate models (GCMs). In rain gauge data, the southward shift maximizes in the 1980s and is associated with signals in Africa, Asia, and South America. A southward shift exists at a similar time in nearly all CMIP3 and CMIP5 historical simulations, and occurs on both land and ocean, although in most models the shifts are significantly less than in observations. Utilizing a theoretical framework based on atmospheric energetics, we perform an attribution of the zonal mean southward shift of precipitation across a large suite of CMIP3 and CMIP5 GCMs. Our results suggest that anthropogenic aerosol cooling of the Northern Hemisphere is the primary cause of the consistent southward shift across GCMs, although other processes affecting the atmospheric energy budget also contribute to the model-to-model spread. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879911980&doi=10.1002%2fgrl.50502&partnerID=40&md5=86d46fe5aa9f15a1ce3b270e2105a1b0
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6202
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States
Recommended Citation:
Hwang Y.-T.,Frierson D.M.W.,Kang S.M.. Anthropogenic sulfate aerosol and the southward shift of tropical precipitation in the late 20th century[J]. Geophysical Research Letters,2013-01-01,40(11).