A Study of Urban Heat Island and Its Mapping

Urban heat island is one of the most important concerns in a developing country like India. The change in climate is due to the human activities such as industrialization and urbanization. The surface cover is increasing throughout the year, since the urban structures consumes and re-radiate heat it becomes the are the main cause for urban heat island. The urban heat island phenomenon is mainly seen in highly populated, urbanized and industrialized cities than in semi urban and rural areas. This paper mainly concentrates to mapping the temperature in Ernakulum city and to determine which are the places are under urban heat island phenomenon. Temperature was taken by manual and the mapping of temperature was done by using the software Arc map ten. From the analysis of the data the change in temperature was 6?C between urban and its surroundings.