SIMULATION OF FLOOD WIDTH BY HEC-RAS MODEL (CASE STUDY: KARUN RIVER BETWEEN BAND GHIR TO AHVAZ)

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GHOMI AVILI F.; SADEGHIAN M.S.; JAVID A.H.; MIRBAGHERI S.A.

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Journal: JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES Year:2010 | Volume:5 | Issue:1 Page(s): 105-115

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Title

SIMULATION OF FLOOD WIDTH BY HEC-RAS MODEL (CASE STUDY: KARUN RIVER BETWEEN BAND GHIR TO AHVAZ)

Author(s)

GHOMI AVILI F. | SADEGHIAN M.S. | JAVID A.H. | MIRBAGHERI S.A. | Issue Writer Certificate

Keywords

FLOOD WIDTH-RETURN PERIODS-DIGITAL ELEVATION MODEL-HEC-RAS MODELQ1

Abstract

Flood studies to plan for optimal utilization and to control this natural phenomenon is main concern in the world and our country. Great damages caused by floods in different parts of the country during past few years demand comprehensive plans; knowing that it is impossible to plan and apply flood control methods without a good knowledge about the behavior of this phenomenon. The extent of flood damages in various conditions depends on the amount of inflow and the geometrical characteristics of flow bed and adjacent areas. Thus flood hazard zonation for different return Periods is necessary to predict the extent of damages caused by floods in different conditions and to justify socio-economical aspects of flood control programs. It is impossible to plan optimal land use in river margins and flood plains and to prohibit and restrict floods without a good knowledge of flood intensity and torrential flow behavior along the river route and flood plain. As a result, in this research, regarding more adaptation between estimated hydrographs by unit hydrograph method and flood index method, this method was selected to estimate flood hydrographs, in related sub-basins for given return periods. After this stage, by estimating the outlet flood hydrograph in the headwaters and existing sub-basins along given route for determining flood hazard plain, maximum water levels in 44 distinct cross sections were determined along about 43 kilometers of the river route. In the end, by using digital elevation model (DEM) produced from river bed and boundaries and the maximum water level in given cross sections for return periods of 5,10,20,25,50,100 years the flood hazard plain was determined by HEC-RAS Software Capability.

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APA: Copy

GHOMI AVILI, F., SADEGHIAN, M.S., JAVID, A.H., & MIRBAGHERI, S.A.. (2010). SIMULATION OF FLOOD WIDTH BY HEC-RAS MODEL (CASE STUDY: KARUN RIVER BETWEEN BAND GHIR TO AHVAZ). JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES, 5(1), 105-115. SID. https://sid.ir/paper/143784/en

Vancouver: Copy

GHOMI AVILI F., SADEGHIAN M.S., JAVID A.H., MIRBAGHERI S.A.. SIMULATION OF FLOOD WIDTH BY HEC-RAS MODEL (CASE STUDY: KARUN RIVER BETWEEN BAND GHIR TO AHVAZ). JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES[Internet]. 2010;5(1):105-115. Available from: https://sid.ir/paper/143784/en

IEEE: Copy

F. GHOMI AVILI, M.S. SADEGHIAN, A.H. JAVID, and S.A. MIRBAGHERI, “SIMULATION OF FLOOD WIDTH BY HEC-RAS MODEL (CASE STUDY: KARUN RIVER BETWEEN BAND GHIR TO AHVAZ),” JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES, vol. 5, no. 1, pp. 105–115, 2010, [Online]. Available: https://sid.ir/paper/143784/en

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