The effect of human interventions on bed and right of way of Faroub Roman river and its flood characteristics

Document Type : Research Article

Authors

1 Department of Water Science and Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad

2 Water Engineering Department, Ferdowsi University of Mashhad

3 Water Engineering Department. Ferdowsi University of Mashhad

Abstract

Due to the location of Iran in the arid and dry regions and flood damage in recent years, flood management studies are of great importance. The devastating effects and widespread human aggression on the riverbed of the rivers of the country have taken many forms. Therefore, simulating the hydraulic behavior of rivers is necessary to predict flood damages, flood control, river organization and other studies. In this study, the Farob Roman river of Neyshabur was modeled 2 km long. Arc-GIS software, HEC-GeoRAS and HEC-RAS software were used for river modeling and modeling was done in both construction and non-construction. In order to study the changes of river bed, the air maps of 1347 and 1398 were used and compared with each other. The sensitivity of hydraulic parameters in discharge with different return periods to changes in coefficient of Manning roughness, discharge and river slope was also investigated. The results showed the negative impact of structures on the increase in depth and area of floods due to human interference in the river flow. According to the results of the river bed determination, it has been determined that, since 1347, 40% of the river bed has been occupied by construction and the river bed has also been relocated. These interventions have increased the flooding area by 16% and increased the water level by 30%. Sensitivity analysis showed that the highest error rate of the model and the observation error was 6%, which can be seen in the appropriate accuracy of the model.

Keywords

References

Gibson N. Jumbo D. Assessing the Effects of Urban Development and Climate change on Flooding in the Greater Port-Harcourt Watershed, Niger delta, Nigeria. P.H.D Thesis University of Edinburgh, Scotland. 2017.
[2]. Suriya S. Mudgal B.V. Impact of Urbanization on Flooding: A Case Study on The Thirusoolam sub ‏watershed. Journal of hydrology. 2012;412:210-219.
[3]. Dammalage T.L, Jayasinghe N.T. Land-Use Change and Its Impact on Urban Flooding: A Case Study on Colombo District Flood on May 2016. Engineering, Technology and Applied Science Research. 2019;9(2):3887-3891.
[4]. Zelenakova M. Fijko R. Labant S. Weiss E. Markovic G. Weiss R. Flood risk modelling of the Slatvinec stream in Kruzlov village, Slovakia. Journal of cleaner production. 2019;212:109-118.
[5]. Abellan A.J, Abellan J.V, Pla C, Castillo F.G. Impact of land use changes on flash flood prediction using a sub-daily SWAT model in five Mediterranean ungauged watersheds (SE Spain). Science of the Total Environment. 2019;657:1578-1591.
 
[6]. Wu l. Xu Y. Yuan J. Xu Y. Wang Q. Xu X. Wen H. Impacts of Land Use Change on River Systems for a River Network Plain. Water. 2018;10(5): 609-615.
[7]. Quiroga V.M, Kure S, Udo K, Manoa A. Application of 2D numerical simulation for the analysis of the February 2014 Bolivian Amazonia flood: Application of the new HEC-RAS version 5. Ribagua. 2016;3:25-33.
[8]. Hazarika N. Das A.K, Borah S.B. Assessing land-use changes driven by river dynamics in chronically flood affected Upper Brahmaputra plains, India, Using RS-GIS techniques. The Egyptian Journal of Remote Sensing and Space Sciences. 2015;18:107–118.
[9]. Derakhshan Sh. Golami V. Taqavi Salimi A. Simulation of Hydraulic Behavior of Goharrood and Siahrood Rivers Using Geographic Information System and HEC-RAS Hydraulic Model. Journal of Applied Research in Geographical Sciences. 2010;16:19-27. [Persian]
[10]. Asadi F.Z, Fazl Uli R, Emadi A.S. Investigation of river bed changes using HEC-RAS model (Case study: Hall River). Watershed Management Research Paper. 2016;8 (15):25-35 [Persian]
[11]. Baharvandi n. Change detection of Dez river bed after constructing dam, by using of imaginary satellite Thesis, Tarbiat Moallem University. 2010;14:21-30. [Persian]
 
[12]. Baioni D. Human activity and damaging landslides and floods on Madeira Island. Natural Hazards and Eatth System Sciences. 2011;11:3035-3046.
[13]. Ministry of Power. A Guide to the Application of Mathematical and Physical Models in Engineering and River Studies. 2012;8:584. [Persian]
[14]. Hussain A. Flood Modelling by Using HEC-RAS. International Journal of Engineering Trends and Technology. 2017;50:1-12.
[15]. Logah F.Y, Amisigo A.B, Obuobie E, Yeboah K. Floodplain hydrodynamic modelling of the Lower Volta River in Ghana. Journal of Hydrology. 2017;14:1-9.
[16]. Bird B, Barr R, Commerford J, Gilhooly W, Wilson J, Finney, B, et al. Late-Holocene floodplain development, land-use, and hydroclimate flood relationships on the lower Ohio River, US. The Holocene. 2019;1-15.
[17]. Misra S, Roy T. The Impact of Land Use Land Cover on the Flood Plain of Bhagirathi River, Purba Bardhaman District, West Bengal, India. Journal of Geography, Environment and Earth Science International. 2019;19(2):1-10.
[18]. Thanvisitthpon N. Impact of land use transformation and anti-flood infrastructure on flooding in world heritage site and peri-urban area: A case study of Thailand's Ayutthaya province. Journal of Environmental Management. 2019;247:518–524.
Iranian journal of Ecohydrology
Volume 8, Issue 2
July 2021
Pages 369-379

Files

History

  • Receive Date: 24 August 2020
  • Revise Date: 12 May 2021
  • Accept Date: 12 May 2021
  • First Publish Date: 16 June 2021
  • Publish Date: 22 June 2021

Share

How to cite

Statistics