Morphometric analysis of the characteristics and implications in the basin hydrological Tharaoa northeastern Iraq and the possibility of exploitation of water in water harvesting projects

Abstract

Abstract

       Of basin Maraoh area (335 km2) and is classified basin in terms of area of large ponds regional، and that for this areal extension prevailing climate and type (semi-humid to humid) provides good amounts of water discharge can be exploited in the supplementary irrigation process، and the creation of technologies that water harvesting. As indicated all the formal properties، to   move away from the docks forms of regular circular shapes، and approached the rectangular shapes and triple، and this is an indicator of the regularity of the water discharge، and successively the arrival of water waves، from upstream to downstream، But these forms of linear basins evening including increased water losses through evaporation and filtration، as this forms a rectangular point to a decline signify risk of flooding، and therefore lack affected by human activities so، as well as being a safety factor for projects that can be held in these river basins، as projects water harvesting and bridges.  Showed all transactions rilef Basin Thraow to the severity of rilef  pelvis، and  the reason for this; to the occurrence of the pelvis in within the Zagros overlapped range which forms the high mountainous terrain، which has increased the degree of slope waterways، and penchant for integrity، and is an indication of the effectiveness of erosion and sediment loads transmitted ، also to increase the gradient straightening waterways degree increases the volume of water discharge، Because of the water current speed، and the lack of opportunities to seepage and evaporation، as well as that of relif positive benefits of the establishment of dams and reservoirs projects in the pelvic area by exploiting large Omknyh Alamadaúgahnak areas to set up irrigation project in the lower part of the basin in within easy Bashdro relying on river water after the creation of a dam to raise the water level of the Akthela (16:00) near the confluence of the valleys Mamend area and Klklh near .aljze of the basin to set up، as there is a possibility for the creation of water harvesting techniques in the central part of the basin، Kamsqat، tanks، terraces and dams interceptors and excavations