Delayed Sahel rainfall and global seasonal cycle in a warmer climate

被引：133

作者：

Biasutti, Michela ^{[1
]}

Sobel, Adam H. ^{[2
,3
]}

机构：

[1] Columbia Univ, Earth Inst, Lamont Doherty Earth Observ, Palisades, NY 10964 USA

[2] Columbia Univ, Dept Appl Phys & Math, New York, NY 10027 USA

[3] Columbia Univ, Dept Earth & Environm Sci, New York, NY 10027 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

关键词：

INTERTROPICAL CONVERGENCE ZONE; TROPICAL ATLANTIC SECTOR; WEST-AFRICA; SURFACE-TEMPERATURE; 20TH-CENTURY; VARIABILITY; 21ST-CENTURY; SIMULATIONS; MECHANISMS; DROUGHTS;

D O I：

10.1029/2009GL041303

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Twenty-first century projections of global rainfall and sea surface temperature in the current generation of climate models indicate a delay in the seasonal cycle in response to increasing greenhouse gases, with important implications for the regional monsoons. In particular, the rainy season of the semi-arid African Sahel is projected to start later and become shorter. The robust agreement across models on the seasonal distribution of Sahel rainfall changes stands in contrast with large uncertainty for summertime rainfall totals there. Citation: Biasutti, M., and A. H. Sobel (2009), Delayed Sahel rainfall and global seasonal cycle in a warmer climate, Geophys. Res. Lett., 36, L23707, doi: 10.1029/2009GL041303.

引用

页数：5

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