Remote-Sensing-Based Analysis of Relationship Between Urban Heat Island and Land Use/Cover Type in Bhubaneswar Metropolitan Area, India

Abstract

AbstractUrbanization is a significant phenomenon in third world country like India. It has a massive impact on urban climate such as surface temperature increased by the rapid rate of urbanization mainly due to the increase of impervious surface. In this paper, I report the relationship between changing land use/cover (LULC) pattern and mode of urban heat island (UHI) in Bhubaneswar Metropolitan Area, India. To detect changing LULC and land surface temperature (LST) three Landsat satellite images were used for different times. To understand the proper relation between LULC and intensity of UHI different mathematical models were built using four indices such as Normalized Difference Vegetation Index (NDVI), Normalized Difference Built built-up Index (NDBI), Normalized Difference Water Index (NDWI), and Normalized Difference Bareness Index (NDBaI). It showed that dry land, bare land, impervious land, and river sand has contained high temperature than other LULC types. Besides, higher temperature in the built-up area, a scattered pattern distribution of temperature was found in 1997, later it has changed to concentric pattern to built-up land in 2017. The negative correlation was found between LST and NDVI, NDWI, and NDBaI, but the positive correlation was shown between LST and NDBI.KeywordRemote sensingUrban heat islandLand surface temperatureLand use-land coverUrbanization