Comparison between different hydrological and groundwater studies in Erbil Basin.

Erbil Basin is one of the most important groundwater resources in the Middle East, it is located between both Greater Zab and Lesser Zab Rivers. Due to the importance of the basin locations and its major source for water supply, various researchers studied the hydrological, hydrogeological characteristics of the Erbil basin. It also divided into three sub-basins that are (Kapran, Central, and Bash-tepa). This paper struggle to present the actual conditions of the selected basin and determine the development process of the groundwater management in the area. Thus, the article evaluates and compare different hydrological and hydrogeological studies related to the Erbil basin, and shows different measurements of the basin boundary by used the researchers. As well as, summarized the characteristics and properties of the aquifer system. In addition, the paper estimated change in head using different catchment area for each basin. At the end of this study, it is concluded that the Erbil basin require more investigations and need to be managed by authorities in order to keep this vital source for future generations. [ABSTRACT FROM AUTHOR]