STUDY CHANNEL CHANGES AND BANK EROSION IN THE GAMASIAB RIVER FROM 1958 TO 2010

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Journal: Journal of Geography and Planning Year:2014 | Volume:18 | Issue:47 Page(s): 109-132

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Title

STUDY CHANNEL CHANGES AND BANK EROSION IN THE GAMASIAB RIVER FROM 1958 TO 2010

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Keywords

RIVER MIGRATIONQ2

BANK EROSIONQ2

ACCRETIONQ2

IRS SATELLITE IMAGERYQ2

GAMASIAB RIVERQ2

Abstract

River channel change, such as BANK EROSION and ACCRETION are natural processes in alluvial rivers. This paper aims to investigate migration and channel change plan form and effect on BANK EROSION and ACCRETION done in GAMASIAB RIVER in Kermanshah Province. This study used aerial photography taken in 1955, 1969, 2003 and IRS SATELLITE IMAGERY of 2010 with a resolution of 5.8 m, aerial photographs were orthophoto in ARCMAP software based on 1.25000 topographic map. Shoreline was digitized and river was divided into 12 reaches. By comparing river in the sequence period investigated the positions have a change. Using the ARCMAP software to create polygons that represented the difference between two positions we calculated erosion and ACCRETION separately for each side of the river. The area of bank ACCRETION along the river had been 285.5 ha and from 1955 to 1969 this area had been 402.6 ha from 1969 to 2003 and the area of bank ACCRETION was 112.9 ha from 2003 to 2010. BANK EROSION had been 347 ha from 1955 to 1969, and this was been 414.17 ha from 1969 to 2003 and the area of BANK EROSION had been 138.2 ha from 2003 to 2010. Results show that the amount of BANK EROSION is more due to bank ACCRETION in the GAMASIAB RIVER.Change and migration in river is the cause of the erosion. Some places in river show about 400 m of movement.

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APA: Copy

. (2014). STUDY CHANNEL CHANGES AND BANK EROSION IN THE GAMASIAB RIVER FROM 1958 TO 2010. JOURNAL OF GEOGRAPHY AND PLANNING, 18(47), 109-132. SID. https://sid.ir/paper/203652/en

Vancouver: Copy

. STUDY CHANNEL CHANGES AND BANK EROSION IN THE GAMASIAB RIVER FROM 1958 TO 2010. JOURNAL OF GEOGRAPHY AND PLANNING[Internet]. 2014;18(47):109-132. Available from: https://sid.ir/paper/203652/en

IEEE: Copy

, “STUDY CHANNEL CHANGES AND BANK EROSION IN THE GAMASIAB RIVER FROM 1958 TO 2010,” JOURNAL OF GEOGRAPHY AND PLANNING, vol. 18, no. 47, pp. 109–132, 2014, [Online]. Available: https://sid.ir/paper/203652/en

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