Estimating reference evapo-transpiration in Mosul (Iraq) using cascade neural networks
Other Title(s)
تخمين التبخر-نتح المرجعي اليومي لمنطقة الموصل (العراق) باستخدام الشبكات العصبية نوع Cascade
Joint Authors
Shihab, Fatin Mahmud
Umar, Raid Rafi
Sadiq, Radwan Yusuf
Source
Engineering and Technology Journal
Issue
Vol. 32, Issue 9A (30 Sep. 2014), pp.2277-2285, 9 p.
Publisher
Publication Date
2014-09-30
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Earth Sciences, Water and Environment
Topics
Abstract AR
لقد شاع في الآونة الأخيرة استخدام أسلوب الشبكات العصبية الصناعية في تخمين مقدار التبخر-نتح.
في هذا البحث تم بناء أنموذج رياضياتي باعتماد تطبيق تقنيات الشبكات العصبية الصناعية نوع Cascade Forward لغرض تخمين مقدار التبخر-نتح المرجعي اليومي لمنطقة الموصل (شمال العراق).
البيانات التي استخدمت كمدخلات للشبكة العصبية هي درجة الحرارة، الإشعاع الشمسي، سرعة الرياح على ارتفاع 2 متر و الرطوبة النسبية.
و لغرض التأكد من صحة أداء الشبكة استخدمت بيانات التبخر الانائي اليومي Class A Pan للمنطقة و لنفس الفترة كمخرجات مأمولة أو كهدف.
أظهرت النتائج توافق خطي بين مخرجات الشبكة و بيانات التبخر الإنائي المقاسة و بمعامل ارتباط (0.9679) و هذا يبين إمكانية استخدام CCANN لحساب التبخر-نتح المرجعي اليومي.
و بمقارنة هذه النتائج بالنتائج المستحصلة من البحوث السابقة و التي استخدمت فيها نماذج أخرى من الشبكات العصبية الصناعية نجد أن هذه الطريقة أعطت نتائج أكثر دقة و كفاءة.
Abstract EN
Recently artificial neural network (ANN) has been applied for estimating reference evapo-transpiration (ET°).
In this study a mathematical model was built by Recently artificial neural network (ANN) has been applied for estimating reference evapo-transpiration (ET°).
In this study a mathematical model was built by application the cascade forward network technique (CCANN) to estimate the daily reference evapo-transpiration in the city of Mosul, north of Iraq.
The input parameters for the CCANN were the : temperature, solar radiation, wind speed at 2m height, and relative humidity.
A check for the accuracy of the performance of the network was made using values of reference evapo-transpiration obtained from pan evaporation method.
The results revealed linear correlation between the network output and the data of the measured pan evapo-transpiration with correlation coefficient of (0.9679).
This indicates the possibility of use of CCANN to determine the daily reference evapo-transpiration.
The results also show that the CCANN model performs better more accurate compared to other models.
application the cascade forward network technique (CCANN) to estimate the daily reference evapo-transpiration in the city of Mosul, north of Iraq.
The input parameters for the CCANN were the : temperature, solar radiation, wind speed at 2m height, and relative humidity.
A check for the accuracy of the performance of the network was made using values of reference evapo-transpiration obtained from pan evaporation method.
The results revealed linear correlation between the network output and the data of the measured pan evapo-transpiration with correlation coefficient of (0.9679).
This indicates the possibility of use of CCANN to determine the daily reference evapo- transpiration.
The results also show that the CCANN model performs better more accurate compared to other models.
American Psychological Association (APA)
Shihab, Fatin Mahmud& Umar, Raid Rafi& Sadiq, Radwan Yusuf. 2014. Estimating reference evapo-transpiration in Mosul (Iraq) using cascade neural networks. Engineering and Technology Journal،Vol. 32, no. 9A, pp.2277-2285.
https://search.emarefa.net/detail/BIM-424378
Modern Language Association (MLA)
Shihab, Fatin Mahmud…[et al.]. Estimating reference evapo-transpiration in Mosul (Iraq) using cascade neural networks. Engineering and Technology Journal Vol. 32, no. 9A (2014), pp.2277-2285.
https://search.emarefa.net/detail/BIM-424378
American Medical Association (AMA)
Shihab, Fatin Mahmud& Umar, Raid Rafi& Sadiq, Radwan Yusuf. Estimating reference evapo-transpiration in Mosul (Iraq) using cascade neural networks. Engineering and Technology Journal. 2014. Vol. 32, no. 9A, pp.2277-2285.
https://search.emarefa.net/detail/BIM-424378
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 2285
Record ID
BIM-424378