کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
507722 865141 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
River suspended sediment estimation by climatic variables implication: Comparative study among soft computing techniques
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
River suspended sediment estimation by climatic variables implication: Comparative study among soft computing techniques
چکیده انگلیسی

Estimating sediment volume carried by a river is an important issue in water resources engineering. This paper compares the accuracy of three different soft computing methods, Artificial Neural Networks (ANNs), Adaptive Neuro-Fuzzy Inference System (ANFIS), and Gene Expression Programming (GEP), in estimating daily suspended sediment concentration on rivers by using hydro-meteorological data. The daily rainfall, streamflow and suspended sediment concentration data from Eel River near Dos Rios, at California, USA are used as a case study. The comparison results indicate that the GEP model performs better than the other models in daily suspended sediment concentration estimation for the particular data sets used in this study. Levenberg–Marquardt, conjugate gradient and gradient descent training algorithms were used for the ANN models. Out of three algorithms, the Conjugate gradient algorithm was found to be better than the others.


► We modeled daily suspended sediment using several data-driven (DD) techniques.
► DD models were compared with each other.
► Genetic programming based models were found to be better than the others.
► The effect of precipitation values on sediment concentration was also investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Geosciences - Volume 43, June 2012, Pages 73–82
نویسندگان
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