برآورد دبي در حوضه هاي آبريز غرب گيلان بر اساس ويژگيهاي فيزيوگرافيك

Estimating of discharge in West of Gilan watershed on base Physiographic factors

In some basins isnʹt any hydrometric data and this problem can effects on natural hazards, for estimating statistics data are using of relationship between discharge station and physiographic factors, such as: Area, Slope, type of soil, Time of concentration precipitation and etc. The aim of this paper is calculating of this relationship in southwestern of Caspian Sea (Talash area) with 15 hydrometric stations in during 1985-2005. The research method of this paper has used of analyzing determination with regression method. The result of this paper has shown that discharge rivers relationship with five variable, such as: Area, slope, elevation, gravilious, time of concentration.