Estimation of Catchment Characteristics using Remote Sensing and GIS Techniques

摘要

Catchment physical characteristics play an important role in the hydrological response of the catchment. Since most of the mountainous terrain is either ungauged or sufficient observed data is not available, for such basins the study of catchment physical characteristics i.e., geomorphological properties, slope, aspect and landuse / landcover of such areas become much more important and significant. Remote sensing and Geographic Information System (GIS) techniques are being effectively used in recent times as a tool in determining the quantitative description of the catchment geometry and change in land use / land cover. In this paper an attempt is made to evaluate the physical characteristics of the Devak catchment up to Gura Slathian in Jammu region of Jammu & Kashmir (J&K), India. The results of the study are useful for further hydrological investigations and are the major inputs to various hydrological models.