Morphometric Methods for Estimating Flood Risk\ Wadi Al- Tharthar Basin aCase Study
DOI:
https://doi.org/10.31185/lark.Vol1.Iss44.2254Keywords:
Morphometric Method, Elshamy Approach, Morphometric Ranking Method, Degree of Flood Hazard.Abstract
In this research, the three morphometric methods were adopted (Elshamy Approach, Morphometric Ranking Method and Degree of Flood Hazard) to estimate the risks of flood rains in the Tharthar Wadi basin with its area (6767.07 km2) . The study included (17) morphometric variables that express the geometric, topographic and morphological characteristics and characteristics of the drainage network of the water basin. The methods were applied to the hydrologically active secondary basins in the main basin (class 4, 5, and 6), which amount to (25) basins. From the results, it was found that the basins vary in the degree of risk potential and according to the methods used, Where in the Elshamy Approach and according to the relationship between the bifurcation ratios (BR) and the drainage density (Dd) (15 a medium risk basin (C), 9 a low-risk basin (A), basin One high risk (B)), and according to the relationship between bifurcation ratios (BR) and frequency stream (FS) (16 medium risk basins (C), 9 low-risk basins (A)) and in the Morphometric Ranking method (13 basins Low risk, 11medium risk and one basin of high risk), While in the Degree of Flood Hazard (19 basins are very low and very low, 4 medium risks, 2 high and very high basins.
References
(i) pradhan,B.(2010)," Flood Susceptible Mapping and Risk Area Estimation Using logistic Regression",Gis and Remote Sensing ,Journal Of Spatial Hydrology,Vo; (9). (ii) Bajabaa,S.,Masoud,M.l-Amri.,(2013), " Flash Flood hazard Mapping Based on guantitative hydrology ,geomorphology and Gis techinques (case study of Wadi Al lith,Saudi Arabia )" .Arabian Journal of Geosciences ISSN ,DOI, 0.1007/S12517-013-0941-2 . (iii) Yahya ,Farhan,Omar Anaba (2016)"Flash Flood Risk Estimation of Wadi Yutum (Southern Jordan ) Watershed using GIS Based Morphometric Analysis and Remote sessing Technigues" ,Open journal of modern Hydrology ,published online April 2016 in scires . (iv) Mahmoud, Abdulrahman, (2016), Flood and Torrential rain Risk in the City of Riyadh, a simulation model using GIS, Saudi Consulting Services Company "saudconsult", Al-Riyadh, Saudia. (v) using Arc GIS10.5 (vi) AL-Kadhimi. et. al, (1996). Tectonic map of Iraq, Geosurvey, printed and publish by the State Establishment of Geology. Surv, and Mining, Baghdad, Iraq. (vii) Geological maps of Iraq (1997) Scale 1/250000, Issued by the Department of Geological Survey and Mineral Investigation, Baghdad.
(viii) Al-Omari Farouk, Sadek Ali, (1977), Geology of Northern of Iraq, Dar AlKutub publishing, University of Mosul. (ix) Buday .T.(1980). The Regional Geology of Iraq ,Stratigraphy and Paleogeography ,Vol 1 ,Dar- Al kutib ,Baghdad 6
(x) Digital Elevation Model DEM using Arc GIS10.5 (xi) The Iraqi General Meteorological Authority, Climate Department, Baghdad, unpublished. (xii) The Digital Soil Map of The World/HWSD, (Version 1.2) – 1/5000000-2009. (xiii) Al-Omari Sohaib Hasan, 2018, The Hydrological Significance of the Soils Nineveh Governorate According to the data HWSD, Proceedings of the ninth periodic scientific conference, Dams and Water Resources Research Center, 2728/11/2018. (xiv) Al-Nafii Haifa Mohammed, 2010, Estimation of Surface run-off and its heavy hazards in the Upper Basin of Wadi Arna, east of Makkah al-Mukarramah, by means RS & GIS, Unpublished master thesis.college of Education for Human Science Umm AL- Qura University . (xv) Captured Satellite image, (2020/3/27). (xvi) Abdulkarim, Ashraf, (2019), Hydrological and hydraulic modeling of Torrents by using Watershed Modeling System WMS, Obekan publishing, Al-Riyadh, Saudia. (xvii) DEM Spatial Analysis Tools Horton 1932-Strahler 1957 Miller 1953
Schumm 1956
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