Indian Journal of Soil Conservation
Year : 2008, Volume : 36, Issue : 1
First page : ( 1) Last page : ( 5)
Print ISSN : 0970-3349.

Unit hydrograph by Least Square Method

Mala Kanchan, Kumar Devendra

Department of Soil and Water conservation Engineering, College of Technology, G. B. Pant University of Agriculture Technology, Pantnagar-263145.

Received:  June,  2007; Revised:  April,  2008; Accepted:  April,  2008.

Abstract

Unit hydrograph for estimation of runoff hydrographs for the Kothuwatari watershed was developed by least square method. The regeneration and prediction performance of the method were evaluated based on visual inspection ofrunoff hydro graphs and statistical measures such as integral square error, absolute relative error in peak and absolute relative error in estimated time to peak. The lower value of integral square error, absolute relative error in peak and zero value of absolute relative error in estimated time to peak suggest the adaptability of least square method for derivation of unit hydrograph for development of hydro graphs for the watershed.

Top

Keywords

Unit hydrograph, Watershed, Least Square Method.

Top