DOI: 10.1175/JCLI-D-16-0579.1
Scopus记录号: 2-s2.0-85020007136
论文题名: Climate models lack jet-rainfall coupling over West Africa
作者: Whittleston D. ; Nicholson S.E. ; Schlosser A. ; Entekhabi D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 12 起始页码: 4625
结束页码: 4632
语种: 英语
Scopus关键词: Dynamics
; Jets
; Rain
; Africa
; Atmospheric process
; Fundamental limitations
; Hydrometeorology
; Large-scale dynamics
; Model evaluation
; Monsoons
; Quantitative frameworks
; Climate models
; atmospheric dynamics
; climate modeling
; CMIP
; hydrometeorology
; jet
; monsoon
; rainfall
; Sahel [Sub-Saharan Africa]
; West Africa
英文摘要: Changes in large-scale dynamics over West Africa-the strength and position of zonal jets-are a key interim step by which local and remote forcing is communicated into changes in rainfall. This study identifies a key mode of jet variability and demonstrates how it is strongly coupled with rainfall. The approach provides a quantitative framework to assess jet-rainfall coupling and a useful tool to investigate the concerning spread in CMIP5 rainfall projections over the West African Sahel. It is shown that many CMIP5 simulations fail to capture this coupling, indicating a fundamental limitation in their ability to predict future rainfall conditions. The results demonstrate that West African rainfall in the coming CMIP6 ensemble should be interpreted with caution; key atmospheric processes that deliver rainfall must be validated before conducting detailed analysis on rainfall. © 2017 American Meteorological Society. 资助项目: NASA, National Aeronautics and Space Administration
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49636
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States; Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL, United States; Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, Cambridge, MA, United States
Recommended Citation:
Whittleston D.,Nicholson S.E.,Schlosser A.,et al. Climate models lack jet-rainfall coupling over West Africa[J]. Journal of Climate,2017-01-01,30(12)