Space-time rainfall variability in West Africa derived from observations and GCMs

被引：0
|
作者：
Onibon, H [1 ]
Lebel, T [1 ]
Afouda, A [1 ]
机构：
[1] LTHE, IRD, F-38041 Grenoble 9, France
来源：
FRIEND 2002-REGIONAL HYDROLOGY: BRIDGING THE GAP BETWEEN RESEARCH AND PRACTICE | 2002年 / 274期
关键词：
global circulation model (GCM); rainfall; simulation; observation; variability; season; climate; West Africa;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The CATCH project quantifies the impact of climate variability on water resources in West Africa by using observed and simulated rainfall scenarios as input for hydrological models. The reliability of the rainfall of a global circulation model (GCM) (LMD-6) was investigated over the CATH region (0degrees to 5degreesE and 6degrees to 15degreesN). Observed daily rainfall data between 1960 and 1990, spatially averaged over the five selected GCM cells, were compared with the GCM rainfall to identify which variability is reproduced. This includes the seasonal cycle, the inter-annual variability and daily rainfall characteristics. Substantial discrepancies between the observed and simulated rainfall regime of West Africa were found.
引用
收藏
页码：483 / 490
页数：8
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