Extract

With industrial and economic development, urban sprawl resulted in the conversion of natural forests and vegetation to urbanized regions with highly built-up areas and infrastructure. The relation of
urban expansion and temperature patterns of cities varies spatially and temporally. UHI (Urban Heat Island) effect on cities can be determined in the horizontal extremities of cities. UGS (Urban Green Space) concept helps in the study of LST (Land Surface Temperature) relation to expansion of cities with effect of Building heights and other related important parameters like density of buildings or greenery and nearness to patches of buildings and greenery. The distribution pattern of cities in the horizontal dimension is continuously studied through open-source coding (traditional SLEUTH or its modified versions) and different Neural Networks coupled with Cellular Automat-Markov Chain (CA-MC) over different cities in India. Changes of nonbuiltup pixels to built-up pixels causes a considerable change in temperature characteristics of city due to change in UGS. Individual building level extraction of parameters such as access to Greenery, LST or pollution can be attempted for studies. It can help in planning cities for reducing the effect of UHI and also in better health conditions of city dwellers.

Keywords: Urban Sprawl; UGS; UHI; LST.

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