Runoff estimation using swat model in brahmani-baitarani river basin

International Journal of Biotech Trends and Technology (IJBTT)
© 2013 by IJBTT Journal
Volume - 3 Issue - 2                          
Year of Publication : 2013
Authors :Kaviya B

Kaviya B "Runoff estimation using swat model in brahmani-baitarani river basin",International Journal of Biotech Trends and Technology (IJBTT), V3(2):1-16 April - June 2013. Published by Seventh Sense Research Group.


Water is undoubtedly the most vital natural resource. Water use management is one of the greatest challenges that face humanity. The demand for water is continuously growing because of the population growth, the intensive urbanization and the development of industrial and agricultural activities. To face the increasing pressure on this vital resource, it is so necessary to set up the adequate instruments to ensure a rational and efficient management of this resource. In this context, the hydrological modeling is largely used as an instrument to assess the functioning of these resources at basin scale. In addition, the use of spatial models let to depict and simulate the watershed processes at small spatial and heterogeneous scales that reflect the field reality more accurate and more realistic as possible. However, the use of spatial models requires geospatial data that must be gathered at very fine scales. The study area is Brahmani-Baitarani which extends from 20º29’00”N to 23º37’47”.The objective of the study is to compute the runoff using SWAT hydrological model in Brahmani-Baitarani basin. The study has been executed using remote sensing data and other geo-spatial database, and other field data using semi-distributed hydrological models.


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In this study water balance component Runoff have been computed and its results have been calibrated and validated and finally the performance of the model is valuated. The daily calibration gives NSE above 0.6.