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Title: Impact of urbanisation on formation of urban heat island in Tirupur region using geospatial technique
Authors: Rajkumar, R
Elangovan, K
Keywords: Urbanisation;Land use land cover;Land Surface Temperature;Urban Heat Island
Issue Date: Sep-2020
Publisher: NISCAIR-CSIR, India
Abstract: In the recent times, considerable urbanisation has taken place in few places around the world. This urbanisation has occurred due to rapid development in various industries. Furthermore, urbanisation has lead to an increase in movement of the people from rural to urban centres in search of employment. As people kept moving from urban to rural areas there has been a constant demand for the extension of built-up area. As a result of which, the land which was once covered by green vegetation having permeable and low emissivity is now replaced by built-up area with impermeable land and high emissivity. In addition to this, the surface of these built up areas absorbs solar radiation during the day time and emit radiation during the night time and causes increase in surface temperature. The rate of temperature is higher in urban built up area when compared to the rural counterpart making Urban Heat Island (UHI). In this study, an attempt is made to investigate the impact of urbanisation and formation of UHI in the Tirupur region around the corporation limit. The land use land cover (LULC) pattern mapping was carried out through maximum likelihood supervised classification technique for the years 1991, 2001, 2009, 2011 and 2018. Along with this study, Land Surface Temperature (LST) was estimated using Landsat satellite data of the years 2001 and 2018. Furthermore, the impact on LST shows that the urban area has relatively higher LST when compared to the surrounding rural area. Thus it is found that UHI has formed in the region.
Page(s): 1593-1598
ISSN: 2582-6727 (Online); 2582-6506 (Print)
Appears in Collections:IJMS Vol.49(09) [September 2020]

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