Abstract: This is a general circulation model sensitivity study of the physical mechanisms of the effects of desertification on the Sahel drought. The model vegetation types were changed in the prescribed desertification area, which ...

Abstract: his study examines the role of the air?sea coupled process in the seasonal predictability of Asia?Pacific summer monsoon rainfall by comparing seasonal predictions from two carefully designed model experiments: tier 1 ...

Abstract: A general circulation model sensitivity study was carried out to investigate the influence of global sea surface temperature (SST) on Sahel rainfall. This study was inspired by the impressive model simulations of Sahel ...

Abstract: A numerical experiment was performed to explore the nature of and mechanisms for the effect of large-scale afforestation in the sub-Saharan area on the climate. This sensitivity study, which consists of several short-term ...

Abstract: This paper shows that if predictors are selected preferentially because of their strong correlation with a prediction variable, then standard methods for validating prediction models derived from these predictors will be ...

Abstract: The relation between skill and fidelity of seasonal mean hindcasts of surface temperature by seven coupled atmosphere?ocean models is investigated. By definition, fidelity measures the agreement between model and observational ...

Abstract: It is proposed that a possible mechanism for the occurrence of severe droughts over northeast Brazil is the establishment of a thermally direct local circulation which has its ascending branch at about 10°N and its descending ...

Abstract: A 15-winter sample of daily gridded values of Northern Hemisphere 500 mb heights is examined for the existence of recurrent flow patterns (?analogs?). The analog search is repeated several times after degrees of freedom ...

Abstract: By examining maps of 24 h change of sea level pressure during July and August over the 10-year period 1969?78, we find that 45 (87%) of the 52 lows and depressions that formed in the Bay of Bengal were associated with ...

Abstract: Large-scale conversion of tropical forests into pastures or annual crops could lead to changes in the climate. We have used a coupled numerical model of the global atmosphere and biosphere (Center for Ocean-Land- Atmosphere ...