Volume 20, Issue 57 (6-2020)                   researches in Geographical Sciences 2020, 20(57): 113-124 | Back to browse issues page


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Esfandiary Darabad F, Rahimi M, lotfy K, elhameh E. Lateral Change Detection of Ghezlozan River Channel from 1993 to 2013. researches in Geographical Sciences. 2020; 20 (57) :113-124
URL: http://jgs.khu.ac.ir/article-1-3110-en.html
1- university of Mohaghegh Ardabili , fariba.darabad@gmail.com
2- Ph.D. student of geomorphology, University of tabriz
3- Ph.D. student of geomorphology, University of Mohaghegh Ardabili
Abstract:   (2357 Views)
So that the morphological and transverse changes of the Ghezelozan River have been evident in recent years and caused some problems. In this study, the detection of river side changes was carried out using satellite imagery of TM and OLI Landsat 5 and 8 in the period 1993 to 2013, during which an interval of 158 km from the Ghezelozan River, using the transect method evaluated. The channel duct was divided into 24 transects based on morphology and the process of change. The average migration rate of the Gezelozan River duct has been around 4.47 m / year over the past 20 years. The highest transhumance rate between 1993 and 2013, at 10.58 m / year, is related to transect 16, resulting in 52.51 hectares on the right bank of the river. Overall, the results show that during the period 1993 to 2013, close to 207.14 hectares was added to the right bank of the river and nearly 215.31 hectares from the right bank were decreased. Also, in this study, sinusoidal index was used to study the shape of the duct flat, based on which there are 15 sinusoidal transects.
 
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Type of Study: Applicable | Subject: Geomorphology
Received: 2018/08/12 | Accepted: 2018/12/9

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