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This study assesses the Urban Heat Island (UHI) effect and evaluates the impact of urban/suburban areas in Lahore District on its land surface temperature using Remote Sensing and GIS techniques. The satellite brightness temperature information derived from the medium resolution satellite LANDSAT 5 (Thematic Mapper) is analyzed and compared with the land use/land cover types acquired by classifying the image. The results reveal that urban heat island in Lahore District is significant, with average Land surface temperature values ranging from 23 º C to 44 º C, and maximum urban/non-urban temperature difference reaching 5 º C. The high built-up area exhibits the maximum surface temperature ranges from 31 to 44 º C compared to other land use types. The relationship between thermal behavior and NDVI is also analyzed and negative correlation is identified by the results from the extracted surface temperature and NDVI from Landsat. This suggests that vegetation is the primary determinant controlling the spatial distribution of land surface heat. An effort to compare the population density and air pollution parameters with surface temperature is also made and the air pollution concentration is considered in relation with urban areas of high temperature and high population density.
Muhammad A Butt. 2016. \u201cAssessment of Urban Heat Island (UHI) using Remote Sensing and GIS\u201d. Global Journal of Human-Social Science - B: Geography, Environmental Science & Disaster Management GJHSS-B Volume 16 (GJHSS Volume 16 Issue B2): .
Crossref Journal DOI 10.17406/GJHSS
Print ISSN 0975-587X
e-ISSN 2249-460X
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Total Score: 104
Country: Pakistan
Subject: Global Journal of Human-Social Science - B: Geography, Environmental Science & Disaster Management
Authors: Aneeqa Azeem, Muhammad A Butt, Khadija Nisar, Huma Anwar (PhD/Dr. count: 0)
View Count (all-time): 170
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Publish Date: 2016 05, Fri
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This study assesses the Urban Heat Island (UHI) effect and evaluates the impact of urban/suburban areas in Lahore District on its land surface temperature using Remote Sensing and GIS techniques. The satellite brightness temperature information derived from the medium resolution satellite LANDSAT 5 (Thematic Mapper) is analyzed and compared with the land use/land cover types acquired by classifying the image. The results reveal that urban heat island in Lahore District is significant, with average Land surface temperature values ranging from 23 º C to 44 º C, and maximum urban/non-urban temperature difference reaching 5 º C. The high built-up area exhibits the maximum surface temperature ranges from 31 to 44 º C compared to other land use types. The relationship between thermal behavior and NDVI is also analyzed and negative correlation is identified by the results from the extracted surface temperature and NDVI from Landsat. This suggests that vegetation is the primary determinant controlling the spatial distribution of land surface heat. An effort to compare the population density and air pollution parameters with surface temperature is also made and the air pollution concentration is considered in relation with urban areas of high temperature and high population density.
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