Using Geographic Information System (GIS) to estimate the volume of water for Al Dammam unconfined Aquifer within Al Salman basin, Al- Muthana Governorate, South West Iraq

Osamah N Al-Sheikh,Ayser M Al-Shammaâ€™A

doi:10.24996/ijs.2019.60.7.8

Osamah N Al-Sheikh, Ayser M Al-Shammaâ€™A

Open Access

https://doi.org/10.24996/ijs.2019.60.7.8

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Abstract

The groundwater represents the main source of water in the study area due to lack of surface water. The Dammam unconfined aquifer represents the main aquifer in the study area and Southern desert because of the regional extent, the quantity and quality of water. Many groundwater wells have been drilled in the study area to coverage the huge demand of water for agricultural purposes. The Geographic Information System (GIS) was used to estimate the volume of water which calculated (25.6964 Ã— 109 m3) within the study area , automate calculation of the area of Al Salman basin using digital elevation models, derive the thickness maps of AlDammam unconfined aquifer from Key holes (KH) and Bore holes (BH), draw the groundwater head and flow map in the study area. Such data derived from GIS can help authorities and researchers for groundwater management and further development within the study area.

Highlights

Hydrogeological maps in the broad sense deal with the complex system, their properties and interrelations
All data in the field of hydrogeology possess these three defining dimensional features, which can be accurately represented in Geographic Information System (GIS) [3]
During the field work in April 2018 the twenty one groundwater wells were used to draw the head and derive the groundwater flow within the study area. 2- Location of the study area: The study area (9484) km2 located southwest Al-Samawa city and Southwest of the Euphrates River, in the stable zone of Iraq. It extends from E 45o 15ꞌ 25ꞌꞌ to E 44o 1ꞌ 20ꞌꞌ longitude and N 31° 15' 51ꞌꞌ to N 30° 1' 50ꞌꞌ latitude (Figure-1)

Summary

Introduction

Hydrogeological maps in the broad sense deal with the complex system (water and rocks), their properties and interrelations. ‫الخلاصة‬ ‫تمثل المياه الجهفية المصدر الرئيدي للمياه في منطقة الد ارسة وذلك لانعدام مصادر المياه الدطحية في‬ ‫ يمثل خ ازن الدمام غير المحصهر الخ ازن الرئيدي في منطقة الد ارسة‬.‫حهض الدلمان ضمن منطقة الد ارسة‬ ‫ العديد من ابار‬.‫والصح ارء الجنهبية وذلك لأمتداده الاقليمي وكمية المياه الجهفية ونهعيتيا الملائمة للز ارعة‬ ‫ استخدم برنامج‬.‫المياه الجهفية قد تم حفرىا في منطقة الد ارسة لتغطية الطلب الكبير من قبل القطاع الز ارعي‬ ‫نظم المعلهمات الجغ ارفية لتقدير حجم المياه في خ ازن الدمام غير المحصهر في منطقة الد ارسة اذ تم حدابو‬ ‫ رسم خ ارئط الدمك لخ ازن الدمام‬،‫ متر مكعب) اضافة الى حداب مداحة منطقة الد ارسة‬25.6964 ×109( ‫ رسم خ ارئط مدتهى المياه الجهفية بالندبة لدطح البحر وحركة‬،)‫المفتهح باستخدام ابار اللباب

Results

Conclusion