Derivation of Dimensionless Unit Hydrograph and S Curve for Mini-Watershed of Manvi Taluk Raichur District Karnataka

Mohammed Badiuddin Parvez¹ , M Inayathulla²

Section:Research Paper, Product Type: Journal-Paper
Vol.5 , Issue.9 , pp.28-32, Sep-2019

Online published on Sep 30, 2019

Copyright © Mohammed Badiuddin Parvez, M Inayathulla . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Unit Hydrograph (UH) is the most famous and generally utilized technique for analysing and deriving flood hydrograph resulting from a known storm in a basin area. For ungauged catchments, unit hydrograph are derived using either regional unit hydrograph approach. Central Water Commission (CWC) derived the regional unit hydrograph relationships for different sub-zones of India relating to the various unit hydrograph parameters with some prominent physiographic characteristics. In this study, the lately developed UH model is applied located between Latitude 15º54′2′′ N to 16º16′19′′ N Latitude and 76º48′40′′ E to77º4′21′′ E Longitude. The study area covers an area of 466.02 km2, having maximum length of 36.5 km. The maximum and minimum elevation of the basin is 569 m and 341 m above MSL, respectively. The Peak discharge of unit hydrograph obtained is 171.58m3/s. The final cumulative discharge is 1669.05 m3/s.

Key-Words / Index Term :
Unit hydrograph, Flood hydrograph, Slope, Synthetic Parameter CWC

References :
[1]. CWC (1986). Flood estimation report for Kaveri basin subzone 3(i). Directorate of Hydrology (small Catchments), Central Water Commission, New Delhi
[2]. Mohammed Badiuddin Parvez, M Inayathulla “Generation Of Intensity Duration Frequency Curves For Different Return Period Using Short Duration Rainfall For Manvi Taluk Raichur District Karnataka”, International Research Journal of Engineering and Management Studies (IRJEMS), Volume: 03 Issue: 04 | April -2019.
[3]. Mohammed Badiuddin Parvez, M Inayathulla “Prioritization Of Subwatersheds of Cauvery Region Based on Morphometric Analysis Using GIS”, International Journal for Research in Engineering Application & Management (IJREAM), Volume: 05 Issue: 01, April -2019. 4.
[4]. Mohammed Badiuddin Parvez, M Inayathulla, "Rainfall Analysis for Modelling of IDF Curves for Bangalore Rural, Karnataka", International Journal of Scientific Research in Multidisciplinary Studies , Vol.5, Issue.8, pp.114-132, 2019.
[5]. Mohammed Badiuddin Parvez, M Inayathulla, "Development of S Curve for Mini-Watershed of Raichur City Karnataka", International Journal of Scientific Research in Multidisciplinary Studies , Vol.5, Issue.8, pp.1-11, 2019
[6]. Clark, C.O. (1945). “Storage and the Unit hydrograph”. Transactions of the American Society of Civil Engineers 110:1491-46.