Development of three dimensional groundwater model for al-Coridoor Wellfield-Amman-Zarqa Basin

العناوين الأخرى

تطوير نموذج المياه الجوفية الثلاثي الأبعاد لمنطقة الكوريدور-حوض عمان الزرقاء

مقدم أطروحة جامعية

al-Adayilah, Amjad

مشرف أطروحة جامعية

Shawaqfah, Muayyad

الجامعة

جامعة مؤتة

الكلية

كلية الهندسة

القسم الأكاديمي

قسم الهندسة المدنية

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2008

الملخص الإنجليزي

Coridoor area (400 km2) lies to the north – east of Amman (60 km).

It lies between 285-305 E longitude and 165-185 N latitude (according to Palestine Grid).

It been subjected to exploitation of groundwater from new eleven wells since the 1999 with a total discharge of 11 MCM in addition to the previous discharge rate from the well field 14.7 MCM.

Consequently, the aquifer balance is disturbed and a major decline in water level.

Therefore, suitable groundwater resources management is required to overcome the problems of over pumping and its effect on groundwater quality.

Three–dimensional groundwater flow model Processing Modeflow for Windows Pro (PMWIN PRO, 2003) has been used in order to calculate the groundwater budget, aquifer characteristics, and to predict the aquifer response under different stresses for the next 20 years (2028).

The model was calibrated for steady state conditions by trial and error calibration and.

The calibration was performed by matching observed and calculated intial heads for year.

Drawdown data for period 2001-2004 were used to calibrate transient model by matching calculated with observed one, after that, the transient model was validated by using the drawdown data for the period 2005-2006.

The hydraulic conductivities of the Basalt- A7/B2 aquifer System are ranging between 1.0-8.0 m/day.

The low conductivity value was found at the north-west and south-western parts of the study area, the high conductivity value was found at north-western corner of the study area and the average storage coefficient is about 0.025.

The water balance for the Basalt and B2/A7 formation at steady state condition with a discrepancy of 0.003%.

The major inflows come from Jebal Al Arab through the basalt and through the limestone aquifer (B2/A7 12.28 MCM/a aquifer and from excess rainfall is about 0.68 MCM/a.

While the major outflows from the Basalt-B2/A7 aquifer system are toward Azraq basin with about 5.03 MCM/a and leakage to A1/6 aquitard with 7.89 MCM/a.

Four scenarios have been performed to predict aquifer system responses under different conditions.

Scenario no.2 was found to be the best one which indicate that the reduction the abstraction rates by 50% of current withdrawal rate (25.08 MCM/year) to 12.54 MCM/year.

The maximum drawdowns were decreased to reach about,7.67 and 8.38m in the years 2018 and 2028 respectively.

التخصصات الرئيسية

علوم الأرض و المياه و البيئة
الهندسة المدنية

عدد الصفحات

79

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-786659