P. K. PARHI ET AL.
850
2) The performance of calibrated model has been veri-
fied for flood of year 2006. Close agreement (84.65%
efficiency) have been arrived between simulated and
observed flows for Munduli gauging station.
3) For flood forecasting and flood plane mapping us-
ing HEC-RAS, Manning’s roughn ess coeff icient of 0.032
may yield best result.
4) Furthermore, the calibrated Manning’s roughness
coefficient works best for high flow only, which needs to
be verified for lean flows in the f o cus reach .
REFERENCES
[1] W.-M. Bao, X.-Q. Zhang and S.-M. Qu, “Dynamic Cor-
rection of Roughness in the Hydrodynamic Model,” Jour-
nal of Hydrodynamics, Vol. 21, No. 2, 2009, pp. 255-263.
doi:10.1016/S1001-6058(08)60143-2
[2] R. Ramesh, B. Datta, M. Bhallamudi and A. Narayana,
“Optimal Estimation of Roughness in Open-Channel
Flows,” Journal of Hydraulic Engineering, Vol. 126, No.
4, 1997, pp. 299-303.
doi:10.1061/(ASCE)0733-9429(2000)126:4(299)
[3] S. Patro, C. Chatterjee, S. Mohanty, R. Singh and N. S.
Raghuwanshi, “Flood Inundation Modeling Using Mike
Flood and Remote Sensing Data,” Journal of the Indian
Society of Remote Sensing, Vol. 37, No. 1, 2009, pp. 107-
118. doi:10.1007/s12524-009-0002-1
[4] N. Usul and T. Burak, “Flood Forecasting and Analysis
within the Ulus Basin, Turkey, Using Geographic Infor-
mation Systems,” Natural Hazards, Vol. 39, No. 2, 2006,
pp. 213-229. doi:10.1007/s11069-006-0024-8
[5] R. Vijay, A. Sargoankar and A. Gupta, “Hydrodynamic
Simulation of River Yamuna for Riverbed Assessment: A
Case Study of Delhi Region,” Environmental Monitoring
Assessment, Vol. 130, No. 1-3, 2007, pp. 381-387.
doi:10.1007/s10661-006-9405-4
[6] A. M. Wasantha Lal, “Calibration of Riverbed Rough-
ness,” Journal of Hydraulic Engineering, Vol. 121, No. 9,
1995, pp. 664-671.
doi:10.1061/(ASCE)0733-9429(1995)121:9(664)
[7] P. V. Timbadiy a, P. L. Patel and P. D. Porey, “Calibra tion
of HEC-RAS Model on Prediction of Flood for Lower
Tapi River, India,” Journal of Water Resources and Pro-
tection, Vol. 3, 2011, pp. 805-811.
doi:10.4236/jwarp.2011.311090
[8] US Army Corps of Engineers, “HEC-RAS, User Manual,”
Hydrologic Engineering Center, Davis Version 4.0, 2008.
[9] US Army Corps of Engineers, “HEC-RAS, Hydraulic
Reference Manual,” Hydrologic Engineering Center,
Davis Version 4.0, 2008.
[10] B. Mishra and S. Behera, 7th International R&D Confer-
ence on Development and Management of Water and En-
ergy Resources, Bhubaneswar, 4-6 February 2009.
[11] Government of Orissa, Department of Water Resources,
Mahanadi at a Glance, Vol. 1, 2010.
[12] J. E. Nash and J. V. Sutcliffe, “River Flow Forecasting
through Conceptual Models, Part I-A Discussion of Prin-
ciples,” Journal of Hydrology, Vol. 1 0, 1 970 , pp. 282-290.
doi:10.1016/0022-1694(70)90255-6
Copyright © 2012 SciRes. JWARP