AN INVESTIGATION OF MORPHOLOGICAL CHANGES OF AZADROUD RIVER PATTERN USING GEOMETRIC INDICES

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REZAEI MOGHADDAM MOHAMMAD HOSSEIN; NIKJOO MOHAMMAD REZA; MALEKI HESAM

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Journal: Geography and Environmental Planning Year:2018 | Volume:28 | Issue:4 (68) Page(s): 1-16

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Title

AN INVESTIGATION OF MORPHOLOGICAL CHANGES OF AZADROUD RIVER PATTERN USING GEOMETRIC INDICES

Author(s)

REZAEI MOGHADDAM MOHAMMAD HOSSEIN | NIKJOO MOHAMMAD REZA | MALEKI HESAM | Issue Writer Certificate

Keywords

MORPHOLOGICAL CHANGESQ1

RIVER PATTERNSQ1

SIRVAN CATCHMENTQ1

AZAD RIVERQ2

WINDING RIVERQ2

Abstract

River pattern variations are one of the most important river engineering issues. In order to achieve this goal, using field observations, a 1: 1000 topographic map was prepared and extracted using Landsat and Google Earth satellite images in the GIS environment of the studied areas. By digitizing the river route in AutoCAD, the geometric parameters of the river (central angle, relative radius, plan shape, torsional coefficient) were calculated on the images. The results indicated that in AZAD RIVER, the WINDING RIVER at 40% relative has a radius of more than 3.5. In 30% relative radius bends in river is 1.5 to 3.5. In addition, about 30 percent of the stress concentration around the inner corners is the main river. According to the findings, the probability of serious and significant changes in the period of study, AZAD RIVER is small. Intervals that are unstable are likely to need special attention in the context of their privacy be determined. Among the intervals, there are nine critical intervals that include intervals of 58, 56, 47, 41, 29, 26, 24, 20, 18. Therefore, it is necessary to determine the bed boundaries.

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APA: Copy

REZAEI MOGHADDAM, MOHAMMAD HOSSEIN, NIKJOO, MOHAMMAD REZA, & MALEKI , HESAM. (2018). AN INVESTIGATION OF MORPHOLOGICAL CHANGES OF AZADROUD RIVER PATTERN USING GEOMETRIC INDICES. GEOGRAPHY AND ENVIRONMENTAL PLANNING (UNIVERSITY OF ISFAHAN), 28(4 (68) ), 1-16. SID. https://sid.ir/paper/153164/en

Vancouver: Copy

REZAEI MOGHADDAM MOHAMMAD HOSSEIN, NIKJOO MOHAMMAD REZA, MALEKI HESAM. AN INVESTIGATION OF MORPHOLOGICAL CHANGES OF AZADROUD RIVER PATTERN USING GEOMETRIC INDICES. GEOGRAPHY AND ENVIRONMENTAL PLANNING (UNIVERSITY OF ISFAHAN)[Internet]. 2018;28(4 (68) ):1-16. Available from: https://sid.ir/paper/153164/en

IEEE: Copy

MOHAMMAD HOSSEIN REZAEI MOGHADDAM, MOHAMMAD REZA NIKJOO, and HESAM MALEKI , “AN INVESTIGATION OF MORPHOLOGICAL CHANGES OF AZADROUD RIVER PATTERN USING GEOMETRIC INDICES,” GEOGRAPHY AND ENVIRONMENTAL PLANNING (UNIVERSITY OF ISFAHAN), vol. 28, no. 4 (68) , pp. 1–16, 2018, [Online]. Available: https://sid.ir/paper/153164/en

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