TR-51 : Watershed characteristics of ONG sub basin

Abstract

Watershed characterisation is a foremost task in any water resources development project. The conventional methods of watershed characterisation through ground based survey and aerial photographs are time consuming and costly. Remote Sensing Which is in an advance stage of development, is becoming a versatile tool for such studies because of the accelerated speed, better accuracy, repeated measurements and synoptic coverage and finally an integrated data base. The present study was taken up for mapping and analysis of various watershed characteristics of Ong sub basin using Landsat imagery. The parameters which were included in the study are; drainage, basin configuration, relief, land cover and soil erosion. Drainage, basin configuration and relief were studied from the available toposheets. Information about land cover and soil erosion and supplementary information on drainage was obtained from satellite imagery.