3.2. Software and mappingRemotely s

3.2. Software and mapping

Remotely sensed data, topographic maps and field data was loaded and processed in GIS software i.e. Arc10 and ERDAS 9.2 [Earth Resource Development Application System]. IRS P6 LISS-IV satellite data was classified using supervised classification technique and field work information collected from selected sample sites for LULC mapping. Normalized Difference Water Index (NDWI) was used for soil moisture map. Thematic maps i.e. pH, EC, OC, N, P and K were prepared using Inverse Distance Weighting (IDW) interpolation technique in GIS. CSDS was used for calculation of weights for selected criterion.