Remote sensing of land cover's effect on surface temperatures: a case study of the urban heat island in Bangalore, India

• DOI: 10.4225/03/57e1d1618522a
• Publication Date: 2016-09-21
• Authors: Shrinidhi Ambinak...
• Keywords: Impervious surface; Urban Heat Island; Thematic Mapper; Land Cover; Thermal pollution

Urbanization has substantially altered the earth’s surface, and cities’ impervious surfaces for anthropogenic activities often generate an urban heat island (UHI). This paper analyses effects of UHI in Bangalore, which recent years witnessed tremendous in-migration people expansion infrastructure due to rapid growth its information technology, biotechnology manufacturing sectors. Temperature values extracted from Landsat satellite’s Enhanced Thematic Mapper Plus (ETM+) thermal bands a “Normalized Difference Vegetation Index” (NDVI) were used ascertain relationship between vegetation cover temperature. Results indicate that city core significantly lower mean temperature than city’s outgrowth zones. The presence water bodies helped maintain temperatures those found outskirts, even though within varied 1 7° C different land classes. continued new, residential neighborhoods lack seem be contributing higher