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عنوان المقال عربي

التحليل الجيومورفولوجي لتقدير حجم الجريان السطحي لحوض وادي تكبره في محافظة السليمانية

اسم الباحث عربي

زينب مهدي جعفر، نيران محمود سلمان

Abstract

The research aims to estimate the volume of surface runoff according to the American Soil Conservation Hypothesis (SCS-CN) method. north, and arcs of longitude (45°28ʹ0ʺ / 12°0ʺ45°) east, And that is through the application of the mathematical equations for this model developed by the National Service for Conservation of Resources (NRSC) in the US Department of Agriculture, which are represented by the main inputs of this model (hydrological soil quality, land use / land cover, rainfall, morphometric characteristics), As for the outputs, they are represented by the numerical curve (Curve Number), which represents the volume of water that reaches the estuary, that is, the amount of surface runoff that increases with the increase in the amounts of rainfall after part of it seeps into the soil and the remaining part is hindered by the land cover and land uses. The study concluded that there is a convergence in the values ​​of the digital curve (CN) between the sub-basins and the absence of significant differences in its values, as it ranged between (74.56-81.66) and all of them are higher than the average value (50), meaning that they have a high ability to generate runoff as a result of the few surfaces. permeability, the maximum flow of the basin reached (361.82) m3 / s with a maximum flow time of (310 minutes). This shows that there are risks of flooding in the basin of Wadi Takbara. The basin does not need to reach the top of its flow except (310 minutes), which is equivalent to (5) hours since the beginning of the first rain fall.

Keywords

(SCS-CN) method, surface runoff, (SCS-CN) method, enlargement..

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