هيدروجيومورفولوجية حوض وادي ساورا في محافظة السليمانية == The Hydrogeomorphology Of Sawra Basin In Sulaymaniyah Governorate
Author name:
نهرين حسن عبود
Supervisor name:
هالة محمد عبد الرحمن
General topic:
Geography
Specific topic:
Natural Geography
Degree:
Doctorate
University:
University of Baghdad
Language:
Arabic
University location:
Baghdad
First pages:
10T1583 - p.pdf
Abstract:
The study aims to detect natural and morphometric characteristics of Sawra Valley basin measuring the Volume of water flow , Geomorphological processes resulting from it ,know the characteristics of the ground water and their validity to different uses as well as knowledge of geomorphological features the basin.The area of study region is 239.83km2, was divided to two areas , the first is Sawra Valley Basin which equals 188.67 km2 and the other is 51.16km2 which represents the Silt Fan ( Raniya Fan ) , that formed by the Valley as a result of moving the precipitations from the top of the basin towards its mouth. The length of Sawra Valley basin is 27.70 km where its slop from north to south. The basin is subdivided into three secondary basins , the largest one is Sawra Main Basin , that its area equals 109.23 km2 which represents about 57.9% of the whole basin. Sawra valley basin is considered one of the seasonal Valleys, that flow from btrechn mountain to south ward direction , then flows into Dukan Lake. Studying the natural characteristics such as geological setting , rock composition and Linear structures appeared that there were 190 Linear structure , had an effect in the main stream of the valley and these branches.Topographic surface as well as the gradient were studied by dividing the tasi in to seven categoris , however , the old climate had lett its mark in the basin , furthermore , the impact of the current climatic elements such as temperature, wind and rain which effected in the morphometric, hydrological characteristics and forms of landscapes.On other hand, the properties of six samples, that most of them was type, which effected on vegetation that varied in quality and intensity from place to place within the basin - the basin has shown that it is ranked biftraction ratio (4.3) and with meandering coefficient (1.20) and the basin being passes through instability stage (youth stage), that reached to hypsometric coefficient value 82.56%.For the purpose of calculating the water runoff, it has been relying on a snyder model that fits for study area, the water runoff amount reached to 264.245.66M3 in addition the geomorphological processes such as laminate erosion, streaming erosion and rifting erosion. The study showed that all wells recorded in the study area, which are amounted to(28) wells are valid for different uses. Land forms distributed and classified in the basin according to their configuration in five categoris, the first one structural - erosion land forms, erosion land forms, sedimentation land forms, land forms resulting from solvent processes and land forms resulting from terrestrial materials.
