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Rainfall – Runoff Relationship in Alsafarqieh Watershed

العلاقة بين الهطل المطري و الجريان النهري في حوض السفرقية

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 Publication date 2018
and research's language is العربية
 Created by Shamra Editor




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The Alsafarqieh watershed is located on the western slopes of the coastal mountain range, Its area is 132.58 km2, It forms a part of the Alros river basin, The river starts at a height of 1200 m, A group of tributaries meet and form the Alros River, which flows into the Mediterranean Sea. Salaheddin Dam was constructed to store 10 MCM on the riverbed at the intersection of the Qurdaha River with the Shehada River. The study aims to determine the rainfall- runoff relationship in The Alsafarqieh watershed. The solution depends on the statistical analysis of precipitation and runoff data. Then the study found the mean annual precipitation is 159.6 MCM/year, and the mean annual flow into the Salaheddin lake was 9.4 MCM during the study period (2010-2012), so the runoff coefficient is 0.06. This indicates a significant water loss. A mathematical equation to predict the runoff quantities depending on the values of precipitation, has been concluded. This is important to study water projects for water storage and flood prevention.


Artificial intelligence review:
Research summary
يقع حوض السفرقية على السفوح الغربية لسلسلة الجبال الساحلية ويشكل جزءاً من حوض نهر الروس. تهدف الدراسة إلى تحديد العلاقة بين الهطل المطري والجريان السطحي في حوض السفرقية باستخدام التحليل الإحصائي لبيانات الهطل والجريان. أظهرت النتائج أن الكمية الوسطية للهطل المطري السنوي تبلغ 159.6 مليون متر مكعب، بينما الكمية الوسطية للجريان السطحي تبلغ 9.4 مليون متر مكعب خلال فترة الدراسة (2010-2012)، مما يشير إلى أن عامل الجريان السطحي يبلغ 0.06. تم استنتاج علاقة رياضية تسمح بتقدير كميات الجريان السطحي اعتماداً على قيم الهطل، مما يساعد في دراسة المشروعات المائية لتخزين المياه وإدارتها ودرء الفيضانات. تم استخدام برنامج GIS لرسم مضلعات تيسين وتحليل بيانات الهطل المطري من تسع محطات مطرية. أظهرت النتائج أن مدة العاصفة المطرية وزمن هطولها والفواصل الزمنية بين العواصف تلعب دوراً مهماً في كمية الجريان الناتج. كما تبين أن التربة الرطبة والمشبعة تزيد من قيمة الهطل الفعال وعامل الجريان، بينما تقل هذه القيم في التربة الجافة والمشققة. تم التحقق من صحة العلاقة المستنتجة باستخدام جذر متوسط مربعات الأخطاء والانحراف المعياري، وأظهرت النتائج أن العلاقة تقع ضمن تصنيف جيد وتعطي قيم قريبة من القيم المقيسة.
Critical review
دراسة نقدية: تعتبر الدراسة مهمة جداً لفهم العلاقة بين الهطل المطري والجريان السطحي في حوض السفرقية، وقد تم استخدام منهجية علمية دقيقة في جمع وتحليل البيانات. ومع ذلك، يمكن تحسين الدراسة من خلال توسيع فترة الدراسة لتشمل سنوات إضافية للحصول على نتائج أكثر دقة وشمولية. كما يمكن استخدام تقنيات حديثة مثل الاستشعار عن بعد لتحسين دقة البيانات المجمعة. بالإضافة إلى ذلك، يمكن دراسة تأثير العوامل الأخرى مثل التغيرات المناخية والتدخلات البشرية على الجريان السطحي لتقديم توصيات أكثر شمولية لإدارة الموارد المائية.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو تحديد العلاقة بين الهطل المطري والجريان السطحي في حوض السفرقية.

  2. ما هي الكمية الوسطية السنوية للهطل المطري والجريان السطحي في حوض السفرقية؟

    الكمية الوسطية السنوية للهطل المطري تبلغ 159.6 مليون متر مكعب، بينما الكمية الوسطية للجريان السطحي تبلغ 9.4 مليون متر مكعب.

  3. ما هو عامل الجريان السطحي الذي تم استنتاجه من الدراسة؟

    عامل الجريان السطحي الذي تم استنتاجه من الدراسة هو 0.06.

  4. كيف تم التحقق من صحة العلاقة المستنتجة بين الهطل المطري والجريان السطحي؟

    تم التحقق من صحة العلاقة المستنتجة باستخدام جذر متوسط مربعات الأخطاء والانحراف المعياري، وأظهرت النتائج أن العلاقة تقع ضمن تصنيف جيد وتعطي قيم قريبة من القيم المقيسة.


References used
SHAW, E. M. Hydrology in Practice. 3rd ed., British Library, Taylor & Francis e- Library, 1994, 328
WERRITTY, Alan. Living with uncertainty: climate change, river flows and water resource management in Scotland. The Science of the Total Environment, 294, 2002, 29– 40
ANDERSSON, Lotta; et al. Impact of climate change and development scenarios on flow patterns in the Okavango River. ScienceDirect, Journal of Hydrology, 331, 2006, 43– 57
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