The influence of changes in Land Use/Land Cover (LULC) on Land Surface Temperature in Ramanathapuram coast and Assessment of Urban Heat Island, using remote sensing and GIS

Due to marine and terrestrial processes, the land use/land cover features of the Ramanathapuram coastal area noticed dynamic changes. Sometimes the anthropogenic activities and nature also governed such changes. Landuse/Landcover analysis is an essential parameter for the climate change studies in coastal region. Similarly, the analysis of land surface temperature (LST) and the severity of Urban heat island (UHI) also factored for assessing its influence on climate changes. In this study, Remote sensed Landsat satellite data from 2000 to 2020 is very well used to identify the relation between LULC and LST. Advance tools in GIS (Geographic Information Systems) softwares is used to integrate the results. The findings strongly indicate that the built-up area is increasing every year. In the year 2000, the build-ups are noted with 8km2, and it was increased to 44 km2 in 2020. In addition, the LST of the year 2000, 2005, 2010, 2015, and 2020 radiates a maximum temperature of about 30oC, 29oC, 30oC, 30oC, and 27oC, respectively. The highest radiance temperature is observed in barren land; the UHI analysis also points towards increased urban activities. The temperature is comparatively high in an urbanised area, and its UHI values range from very Strong to moderate heat island.