Water evaluation and planning system for greater Zab river basin

The aim of the thesis is to examine the planning and evaluation of the water resources of the Greater Zab River Basin (GZRB) in North Iraq. In this study, it is aimed to develop a business strategy for the GZRB, and to determine the factors affecting the application. The interactions of water users competing in the basin have also been identified and some action plans and strategies for the solution have been addressed. The thesis also sheds light on top management issues addressing the obstacles to the implementation of Integrated Water Resources Management (IWRM) policies and includes complementary strategies. At the same time in this study, it was determined that the existing regulations and practices regarding water usage patterns and water pollution are not sufficient. For this reason, the WEAP model was applied to the basin to determine the optimum GZR planning system and the optimum operating policy of the plan. The main issue of this planning is how the GZR system will meet future water needs. For this reason, the optimal monthly water distribution policies were simulated with the WEAP model using the past 33 years' debts and the performance of the GZRB was re-evaluated. Optimum simulation diagram for different scenarios such as domestic, irrigation water and ecological water needs have been established and implemented. This study was compared with the official figures in the planning works made in the 1980s. As a result of these comparisons, the average annual water supply was 368.1 MCM in August 2032. Accordingly, it is suggested that the construction of Bekhme Dam should be completed as it is understood that the water requirement cannot be met in the current conditions.