Abstract

Tarim basin,which located in north-west of China, is a very important zone both on ecology and economy. How much discharge could it produce has significant importance to the residents' life and the progress of this region. Beside of rainfall, the glaciers that existed plentifully in the upstreams have a great role in this basin which due to the very quantity of snow-melt. In this study, we choose Akesu river that belongs to this basin to be object. The WASMOD hydrologic model used in this program has both snow-melt and rainfall modules with eight sub-models. This article probed into different sub models applicabilities to Akesu river and came to a conclusion of which sub model was best suitable to it. On the basis of optimum model which calibrated by data from 1978-1987 monthly precipitation, evaporation, fast speed flow and base flow, we simulated real evaporation, slow flow, fast flow and total volume of runoff around 2001-2004.The result showed a good applicability of WASMOD in Tarim Basin.

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