Abstract
The main aim of this study is to highlight how the Alana River Basin (ARB) will meet future water needs and optimal monthly water distribution policies. The Water Evaluation and Planning System (WEAP) model was applied in order to determine the ARB and the operation plan policy using data for the past 16 years (2000-2015). The model result determined that the current regulations and practices regarding water use and pollution patterns are inadequate. An ideal scheme has been developed and implemented for various scenarios such as domestic water needs, irrigation water, and tourism. Four scenarios have been considered in this study, which are basic scenarios, a higher population growth scenario, a severe flow requirements scenario, and a scenario of adding dams. Comparisons show that the demand for water from April to September is high due to the agriculture season and the high temperature. The maximum demand for water is 3 million cubic meters, which occurs in August, while the proposed dam provides only 2 million cubic meters. In addition, the maximum demand for domestic water is 0.4733 MCM and the minimum is 0.36978 MCM, which is roughly the same level of water demand for every month. Accordingly, the government should start supplementing the Gali Bale dam. However, it is not a sufficient dam to cover the water demand, so the construction of additional dams is strongly suggested.
Highlights
Iraq is currently facing a freshwater scarcity Study area due to the rapid growth of population and Alana river basin locates at about 80km to the development in the region (3, 7, 10)
The catchment area is a strategy, several factors could be considered approximately about 75000 hector. There are such as the availability of water, its quality, 63 villages in the Alana River Basin (ARB) with a population about location, distribution, and variation in its 28573 people during 2016, 72% of population occurrence, climatic conditions, nature of the gathered in Khalifan, the 10% of the rest competing demands, and socio-economic distributed in 11 villages of sub-catchment and conditions (8)
The average sectors such as agriculture, livestock, tourism temperature of ARB in winter is 1.6°C and in and environment and on the other hand is to summer is 27.8°C
Summary
Iraq is currently facing a freshwater scarcity Study area due to the rapid growth of population and Alana river basin locates at about 80km to the development in the region (3, 7, 10). The mean annual this study is on one hand, to redistribute the precipitation for the period of 2000-2016 in amount of water demand between all water the study area is 794 mm (14) The average sectors such as agriculture, livestock, tourism temperature of ARB in winter is 1.6°C and in and environment and on the other hand is to summer is 27.8°C. Precipitation is distribute the river water flows among the starting from October until the end of April irrigation projects for villages that located in depending on climate change. The map will be imported to WEAP program method as shown in Table 1 Preparation of water supplies for agriculture, domestic rain data, crop type, soil type and crop pattern and environment will be delineated. Requirements (CROPWAT) are used to schedules in CROPWAT, the incoming and calculate water quantities and irrigation outgoing water flow from the soil type. (12)
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