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Modeling the monthly flows of AL-SIN Spring in the Syrian Coast by using the time series analysis

نمذجة التدفقات الشهرية لنبع السن في الساحل السوري باستخدام تحليل السلاسل الزمنية

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




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The study and design of water-intakes on springs is based on the analysis of time series of historical measurements to achieve prediction of incoming water volumes or future expected. The research aims to model the monthly water flows of AL-SIN Spring in Syrian Coast and future expectations of these flows, by adopting the Box-Jenkins models to analyze the time series data, due to its reliable accuracy. Monthly water flows, thus, monthly volumes, for 101 month (from June 2008 to October 2016) were processed. Performing the stability of the time series on variance and median and non-seasonality and making the wanted tests on model residuals, we found that the best model to represent the data is SARIMA(2,0,1) (2,1,0)12 , and after dividing the data into 81 month to build the model and 20 month to test it. Depending on the smallest of weighted mean of criteria RMSE, MAP, MAE,. The best predicted model was SARIMA (3,1,0) (1,1,0)12 and the model gave the nearest predicted values to actually measured data in spring.


Artificial intelligence review:
Research summary
تهدف هذه الدراسة إلى نمذجة التدفقات الشهرية لنبع السن في الساحل السوري باستخدام تحليل السلاسل الزمنية، وذلك من خلال اعتماد نماذج بوكس-جنكنز لتحليل البيانات التاريخية. تم استخدام بيانات تدفقات المياه الشهرية لمدة 101 شهر من يونيو 2008 حتى أكتوبر 2016. بعد إجراء عمليات استقرار السلسلة الزمنية وإزالة الموسمية، تم اختبار عدة نماذج وتبين أن النموذج الأمثل هو SARIMA(2,0,1)(2,1,0)12. تم تقسيم البيانات إلى 81 شهرًا لبناء النموذج و20 شهرًا لاختباره. أظهرت النتائج أن النموذج المقترح يعطي تنبؤات قريبة من القيم الفعلية لتدفقات المياه الشهرية. تم استخدام معايير RMSE وMAP وMAE لتقييم دقة النموذج. الدراسة تبرز أهمية استخدام نماذج بوكس-جنكنز في تحليل البيانات الهيدرولوجية واتخاذ القرارات المتعلقة بإدارة الموارد المائية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة في مجال تحليل السلاسل الزمنية لتدفقات المياه، حيث تقدم نموذجًا دقيقًا لتنبؤ التدفقات الشهرية لنبع السن. ومع ذلك، يمكن تحسين الدراسة من خلال استخدام مجموعة أكبر من البيانات لتغطية فترات زمنية أطول، مما قد يزيد من دقة التنبؤات. كما يمكن تعزيز الدراسة بإضافة تحليل للعوامل المناخية والبيئية الأخرى التي قد تؤثر على تدفقات المياه. بالإضافة إلى ذلك، يمكن مقارنة النتائج مع نماذج تنبؤية أخرى للتحقق من فعالية النموذج المستخدم.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي هو نمذجة التدفقات الشهرية لنبع السن في الساحل السوري باستخدام تحليل السلاسل الزمنية ونماذج بوكس-جنكنز.

  2. ما هي الفترة الزمنية التي تم تحليلها في الدراسة؟

    تم تحليل بيانات تدفقات المياه الشهرية لمدة 101 شهر من يونيو 2008 حتى أكتوبر 2016.

  3. ما هو النموذج الأمثل الذي تم اختياره في الدراسة؟

    النموذج الأمثل الذي تم اختياره هو SARIMA(2,0,1)(2,1,0)12.

  4. ما هي المعايير المستخدمة لتقييم دقة النموذج؟

    المعايير المستخدمة لتقييم دقة النموذج هي RMSE وMAP وMAE.


References used
Springflow Simulator Manual Vers. 1.0.2, 2007. ACSAD-BGR TECHNICALCOOPERATION PROJECT - NO.: 2004.2032.3, Management, Protection and Sustainable Use of Groundwater and Soil Resources
NELSON, G. R., Applied Time Series Analysis For Managerial Forecasting, Holden- Day, Inc. 1973, 78-91
Box, G. M. P. and PIERCE, D. A., Distribution of Residual Autocorrelation in Autoregressive Integrated Moving Average Time Series Models, John Wiley & Sons. 1970, 115-132
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حظيت نمذجة وتوقع السلاسل الزمنية بأهمية كبيرة في العديد من المجالات التطبيقية كالتنبؤ بالطقس وأسعار العملات ومعدلات استهلاك الوقود والكهرباء، إن توقع السلاسل الزمنية من شأنه أن يزود المنظمات والشركات بالمعلومات الضرورية لاتخاذ القرارات الهامة، وبسبب أهمية هذا المجال من الناحية التطبيقية فإن الكثير من الأعمال البحثية التي جرت ضمنه خلال السنوات الماضية، إضافةً إلى العدد الكبير من النماذج والخوارزميات التي تم اقتراحها في أدب البحث العلمي والتي كان هدفها تحسين كل من الدقة والكفاءة في نمذجة وتوقع السلاسل الزمنية.
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