Volume 2, Issue 3 (fall 1998)
jwss 1998, 2(3): 1-11 |
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Khalili D, Yousefi A. Developing a Model for the Estimation of Mean and Maximum Daily Discharges Using Physiographic Parameters for Atrak Watershed. jwss 1998; 2 (3) :1-11
URL: http://jstnar.iut.ac.ir/article-1-246-en.html
URL: http://jstnar.iut.ac.ir/article-1-246-en.html
Abstract: (24023 Views)
Physiographic characteristics of Atrak Watershed described by a number of parameters were used in regression models to estimate maximum daily discharges. These parameters were sub-watershed area, main waterway length, mean waterway slope, mean watershed elevation and mean watershed slope. Based on the results of correlation between the above parameters and their suitability for discharge estimation, three regression models were developed for further analysis. Model 1 applied area as the independent variable to estimate maximum daily discharge. In model 2 area and mean watershed elevation were the independent variables. Model 3 used area and mean waterway slope as the independent variables. Even though the results of testing did identified all three models as appropriate for application, further testing selected model 1 as the most appropriate. Recommendations were made for model application to similar watersheds lacking the necessary data.
Keywords: Modeling, Estimation, Mean and maximum daily discharges, Atrak watershed, Physiographic parameters
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