Estimation of Runoff for Ozat Catchment using RS and GIS Based SCS-CN Method
Dipesh B. Chavda 1 , Jaydip J. Makwana 2 * , Hitesh V. Parmar 3 , Arvind N. Kunapara 2 and Girish V. Prajapati 2
1
Department of Farm Machinery and Power,
College of Agricultural Engineering and Technology,
Junagadh Agricultural University,
Junagadh,
India
2
Centre of Excellence on Soil and Water Management,
RTTC,
Junagadh Agricultural University,
Junagadh,
India
3
Department of Soil and Water Engineering,
College of Agricultural Engineering and Technology,
Junagadh Agricultural University,
Junagadh,
India
http://dx.doi.org/10.12944/CWE.11.1.26
Estimation of runoff in a watershed is a prerequisite for design of hydraulic structures, reservoir operation and for soil erosion control measures. Water resource planning and management is important and critical issue in arid and semi-arid regions. Runoff from a watershed affected by several geo-morphological parameters and for a particular watershed land use change can affect the runoff volume and runoff rate significantly. Several methods are investigated to estimate the surface runoff from a catchment but the Curve Number method is mostly used. Present study was undertaken to estimate surface runoff and water availability for two sites (Ozat-2 and Zanzesri) in the Ozat catchment situated in Junagadh, Gujarat, India using RS and GIS based curve number method. The Weight curve number for the ozat catchment is 73.00. The correlation coefficient between calculated and observed runoff was good for both catchments. In this study found that SCS-curve number method along with RS and GIS can be used successfully in semi-arid region to simulate rainfall runoff and to estimate total surface water.
Copy the following to cite this article:
Chavda D. B, Makwana J. J, Parmar H. V, Kunapara A. N, Prajapati G. V. Estimation of Runoff for Ozat Catchment using RS and GIS Based SCS-CN Method. Curr World Environ 2016;11(1) DOI:http://dx.doi.org/10.12944/CWE.11.1.26
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Chavda D. B, Makwana J. J, Parmar H. V, Kunapara A. N, Prajapati G. V. Estimation of Runoff for Ozat Catchment using RS and GIS Based SCS-CN Method. Curr World Environ 2016;11(1). Available from: http://www.cwejournal.org/?p=13583
