DATA USED

Remote sensing data IRS P6 LISS IV of 5 m resolution was used for land use classification and quantification of hydrological parameters. Ancillary data such as topographic maps (1:50000, 1:250000), vegetation map (French institute, 1985) were used to delineate the drainage network, administrative boundaries, catchment, etc. Training data to geometric correction and classify the remote sensing data were obtained from field using GPS (Global Positioning System) apart from topographic maps and online remote sensing data (http://earth.google.com). Cartosat DEM of 30 m resolution was used in addition to toposheets to derive the basin and sub-basin boundaries, drainage network. Secondary data sources such as Census data of 2011 (http://censusindia.gov.in) was used to compute population density in each sub basin. Publications such as ‘district at glance’ was used in addition for livestock data in sub basins. Rainfall data between 1901 and 2010 from the Department of Statistics, Govt of Karnataka (http://des.kar.nic.in), and India Meteorological Department (http://www.imdpune.gov.in) were used to determine the rainfall dynamics. Temperature data from WorldClim (http://worldclim.org) was used along with land use, etc. to estimate the evapotranspiration losses. Crop calendar was used to estimate the crop water requirement in each month.