Land Surface Temperature Change After Construction of the Kozjak Dam Based on Remote Sensing Data

Abstract

Remotely sensed images are a resource for researches in wide study area. Based on thermal remote sensing technique, Land Surface Temperature (LST) changes analyses were made after construction the Dam of Kozjak near the capital of Republic of Macedonia. Two Landsat 5 remotely sensed images from 1984 and 2011, were used before and after construction of the dam, respectively. The LST of the images was automatically calculated by using LST retrieving tool in Erdas IMAGINE software. The analyses were made using zonal statistics within the boundaries of the previous created buffers of 100 meters, up to 1 km around the dam. The results showed that, the surroundings Land Surface Temperature values has decreased maximum 8.5 degrees C and has also lowered the boundaries of the minimum, maximum and mean values of the region after the dam construction.