A number of very serious drough disasters occurred in many regions of Aftica during past 30 years. It is commonly considered that they are among the most serious disasters after the World War II. The
At the beginning of the 1980s, the Central Place Theory(CPT) was introduced into China from the West. The authors of this article are the initiators of applying this model to Chinas urban and regional
A numerical model coupling atmosphere with hydrodynamics is set up in this paper, and is applied in the experimental study of Lake Biwa. Some results are obtained as : (1) whatever (SSW) in sunimer or
We mainly discuss changes of precipitation in China due to growinggreenhouse gases using GCM1 model assuming the IPCC "Business-as-Usual"Scenario. An increasing greenhouse effect will lead to pre