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Rainfall – Runoff Relationship in ALHWAIZ Basin

العلاقة بين الهطل المطري و الجريان في حوض الحويز

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




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River flows depend on precipitation in their catchments, where the flow is highly correlated with precipitation, among many climatic and geographic factors. The relationship between precipitation and runoff is of great importance in estimating flow changes in The HWAIZ basin that is located between The-Zrod and The-Gelani basins. The Al-HWAIZ Dam was built on the HWAIZ River with storage capacity of 16.5 MCM. The purpose of this study is to find a relationship between rainfall and runoff in The HWAIZ basin. This study depended on statistical analysis of rainfall and runoff data, and the analytical study of the annual rainfall data (1959-2011), to guess the trend of rainfall and its future changes and forecasting changes in the HWAIZ river flows. The study showed that the runoff coefficient values ranged between (0.007-0.66). A mathematical relationship was established that allows to estimate flow based on measured or predicted precipitation values, as well as appraise missing or lacking data with accepted level of accuracy.


Artificial intelligence review:
Research summary
تعتمد تدفقات الأنهار على كميات الهطل المطري في أحواضها الساكبة، حيث يرتبط التدفق بكمية الهطل ارتباطاً وثيقاً، كما يتأثر التدفق بعوامل مناخية وجغرافية عديدة. وتتمتع العلاقة بين الهطل والجريان بأهمية كبيرة في تقدير التدفقات وتغيراتها في حوض الحويز الواقع بين حوضي الزرود والجيلاني، ويشكل حوض الحويز جزءاً من حوض نهر السخابة. شيد سد الحويز على نهر الحويز بطاقة تخزينية بلغت 16.5 مليون متر مكعب. تهدف الدراسة إلى إيجاد علاقة تربط بين قيم الهطل المطري والجريان النهري في حوض الحويز. حيث اعتمد البحث على التحليل الإحصائي لبيانات الهطل والجريان، إضافة إلى الدراسة التحليلية لبيانات الهطل المطري السنوي (2011–1959) مما يساعد في معرفة نزعة الهطولات المطرية وتغيراتها في المستقبل، والتنبؤ بتغيرات تدفقات نهر الحويز. وبيّنت الدراسة أن قيم عامل الجريان تراوحت بين (0.66-0.007). وتم التوصل إلى معادلة رياضية تتيح تقدير كمية التدفق اعتماداً على قيم الهطل المقيسة أو المتوقعة، واستيفاء البيانات المفقودة أو الناقصة بمستوى أداء جيد.
Critical review
دراسة نقدية: تعد الدراسة التي أجراها الباحثون حول العلاقة بين الهطل المطري والجريان في حوض الحويز ذات أهمية كبيرة، خاصة في ظل التغيرات المناخية وزيادة الطلب على الموارد المائية. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، قد يكون من المفيد توسيع نطاق الدراسة لتشمل فترات زمنية أطول أو مناطق جغرافية أخرى لتأكيد النتائج وتعميمها. ثانياً، يمكن تعزيز الدراسة باستخدام تقنيات نمذجة متقدمة مثل الذكاء الاصطناعي لتحسين دقة التنبؤات. وأخيراً، ينبغي النظر في تأثير العوامل البشرية مثل النشاط الزراعي والصناعي على الجريان السطحي، حيث يمكن أن تكون لها تأثيرات كبيرة على النتائج.
Questions related to the research
  1. ما هي الأهداف الرئيسية للدراسة؟

    تهدف الدراسة إلى إيجاد علاقة تربط بين قيم الهطل المطري والجريان النهري في حوض الحويز، وتقدير كمية التدفق اعتماداً على قيم الهطل المقيسة أو المتوقعة، واستيفاء البيانات المفقودة أو الناقصة بمستوى أداء جيد.

  2. ما هي الفترة الزمنية التي شملتها الدراسة التحليلية لبيانات الهطل المطري؟

    شملت الدراسة التحليلية لبيانات الهطل المطري الفترة الزمنية من عام 1959 إلى عام 2011.

  3. ما هي العوامل التي تؤثر في علاقة الهطل المطري والجريان السطحي؟

    تؤثر عدة عوامل في علاقة الهطل المطري والجريان السطحي، منها الارتفاع والموقع الجغرافي للمحطة، توزيع الأمطار، الفترة الزمنية للهطل، تضاريس الحوض الساكب، وخصائص التربة.

  4. ما هي المعادلة الرياضية التي توصلت إليها الدراسة لتقدير كمية التدفق؟

    توصلت الدراسة إلى معادلة رياضية من الدرجة الثالثة لتقدير كمية التدفق وهي: Q = 2 × 10-7 P³ − 2 × 10-5P² + 0.0094 P − 0.0075، حيث Q هو التدفق (m³/s) وP هو الهطل فوق الحوض الساكب (mm).


References used
LAHLABAT, L. O. Rainfall-Runoff Analysis of Wadis Contributing to the Dead Sea: Wadi Og as a Case Study. An-Najah National University, Nablus, Palestine 2013, 208
SHHADI ABEDELKAREEM, S. GIS-Based Hydrological Modeling of Semiarid Catchments (The Case of Faria Catchment). An-Najah National University, Nablus, Palestine 2005, 201
CHOWDHURY, A; AHMMED, S; CHOWDHURY, M. Trends of Climatic Variables (Rainfall and Temperature) at Sylhet, Bangladesh. SUST Journal of Science and Technology, VOL.19. NO.5, 2012, 87-93
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