Abstract
Udupi and its surroundings are experiencing unprecedented urbanization in recent times due to concentrated developmental activities with impetus on industrialization for the economic development of the region. This concentrated growth has resulted in the increase in population and consequent pressure on infrastructure, natural resources and ultimately giving rise to increase in built up area which causes a plethora of serious challenges such as climate change, urban heat Island effects, etc. Prior to urban heat island effect study, we must have knowledge about urbanization growth process along with land use/land cover changes. The study of rate of urbanization growth gives the primary idea about the ineffective infrastructure planning and resource management in advance. The local temperature is one of the major climatic elements to record the changes in the atmospheric environment brought about by industrialization, increasing population and massive urbanization. The current warming trends in temperature around Udupi and its surroundings based on the analysis of satellite thermal imagery could be utilized to infer the development process in this region. The urbanization pattern within the study area is reflected by the trends of increasing temperature which results in the urban heat island effect and also this research focuses to analyze the contribution of the built up area growth due to change in land cover types of Udupi Taluk during the years 2000, 2006 and 2010 to the urban heat Island using GIS technology 2010 and also an attempt to locate the spatial extent of urban heat island areas using the temperature distribution maps using MODIS satellite data of three years 2000 (March 29), 2006 (March 29) and 2012 (March 30) processed using IDRISI Software developed by Clarks University Lab.
Highlights
The knowledge about land use and land cover is gaining importance for the study of socio-economic data planning
The land use means the changes occurred on the land due to residential, industrial, institutional etc. while the term land cover [1] means the different types of features present on the earth’s surface
The information obtained on the change in land use/land cover provides a better understanding of appropriate use of the land for developmental planning
Summary
The knowledge about land use and land cover is gaining importance for the study of socio-economic data planning. While the term land cover [1] means the different types of features present on the earth’s surface. Remote sensing data provide better solutions compared to the conventional ground based methods of land mapping by preparing accurate land use/land cover maps and monitoring changes at regular intervals of time. There is rapid growth in urban built up land area due to population growth which results in a rapid change in the micro climate of urban area. This change causes urban heat island phenomenon above urban area which increases air temperature in the cities and leads to serious environmental problems. The land surface temperature with its spatial distribution may help to find out possible solution for the reduction of heat in Udupi taluk
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