The Estimate of Flood Volume in Drainage Basins Based on Morphometric Data Case Study: Zohreh & Khyrabad Basins in Iran

Document Type : index

Authors

1 Assistant Professor Tarbiat Modares University

2 Assistant Professor of Teacher Training University

10.29252/kavosh.2002.2214

Abstract

Flood is the most important disaster in Iran that has negative effects on the environment. In order to forecast this phenomenon, researches have used different methods such as statistical analysis, rainfall, runoff model, etc. In this paper, to forecast the flood in Zohreh and Khyrabad basins, morphology data were used. To this end, 12 physiography variables such as area, slope gradient, relief and other factors are studied for 15 sub-basins of case study area. Then, all these factors with maximum flood discharge, as dependent factor, are combined in multiple regression model using backward method. The produced model is calibrated for sub-basins using a correction coefficient.
The result of this work indicates that length of basins, gravelius coefficient and the main drainage length factors are the main factors that can be used in the final produced model. The final model is evaluated based on regression coefficient, which shows a very high correlation between estimated and measured flood data.

Keywords

Journal of Kavoshnameh in Persian Language and Literature
Volume 2, Issue 3 - Serial Number 4
July and August 2021
Pages 95-105

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