Monitoring of Tehri Hydroelectric Plant Induced Land Use Land Cover Change Detection in Garhwal District of Uttarakhand

Abstract

The present study analyses the land use change caused by the construction of Tehri dam in Bhagirathi river. Geospatial techniques like Geographic Information System (GIS) and remote sensing have been used to make land use map using Landsat satellite image of 2000 and 2014. In Tehri district, change in land use and new developments (industrial, urban and commercial) were observed. Land use land cover change was done using two satellite images, classifying them via supervised classification and applying change detection in the classified images. Classified images had an overall accuracy of 88.57 and 88.31%. The results were validated using the ground truth points distributed all over the study. Seven main classes were identified in the study area as water, open forest, dense forest, river bed, agriculture, urban and others (which includes scrub and barren land). The increase was observed in built-up class from 2000–2014. The decrease was observed in the open, dense forest and river bed. The present study showed that the construction of the hydropower and associated construction activities had caused changes in the Tehri valley. Keywords: Change detection, land use, land cover, hydropower, Tehri, supervised classification Cite this Article Disha Punetha, Archana Sharma, Pooja Panwar. Monitoring of Tehri Hydroelectric Plant Induced Land Use Land Cover Change Detection in Garhwal District of Uttarakhand. Journal of Remote Sensing & GIS. 2018; 9(2): 1–9p.