The alpine mountain rivers in Xinjiang mainly originate in melting snow and ice water of high mountains glaciers and permanent snow cover.How to determine variation rule of the main factors affecting the ice melting is very important to the research of runoff formation in Xinjiang mountainous.Taking the Manas River as example,by using the daily temperature,rainfall,evaporation and runoff data in Ken Watts Hydrological Stations from 1958~1987,the paper extract digital elevation with GIS,used Xinanjiang model...