APPLICATION OF REMOTE SENSING TECHNIQUES To study the change in land use-land cover and vegetative productivity in and around Tadkeshwar lignite mine, Gujarat

Remote sensing is that the process of detecting and monitoring the neighborhood characteristics of an area by measuring its reflected and emitted radiation at a distance. Special cameras collect remotely sensed images, which help researchers "sense" things about the world. Mining activities may cause to several geological changes, i.e., ground movements, collision with mining cavities, and deformation of aquifers. These changes may constitute a rise within the groundwater table, and thus a slow sinking of subsurface soils and an unexpected collapse, i.e., subsidence. Regular landscape management and monitoring at the surface level are crucial for the prevention of subsidence and development of early warning systems during a mine area. These also are vital for environmental protection, as well as for mitigation of the aftermaths from mining activities. Particularly, monitoring short-term landscape dynamics, i.e., changes within the extent of waterbodies and vegetation, may provide important information about long-term geological changes like subsidence, sinkhole formation, and changes in water table dynamics and associated effects on the environment.