Abstract
Spatio-Temporal Analysis of UHI using Geo-Spatial Techniques: A case study of Ahmedabad
Highlights
In recent years urban heat waves, extreme droughts and forest fires have been reported with increasing frequency, disturbing the environmental dynamics and the quality of life in the affected cities
Urban Heat Island (UHI) term was coined in the year 1940 which refers to the atmospheric warmth of the city as compared to the countryside
The UHI phenomenon was more concentrated in the Eastern, Southern and peripheral parts of North West Ahmedabad
Summary
In recent years urban heat waves, extreme droughts and forest fires have been reported with increasing frequency, disturbing the environmental dynamics and the quality of life in the affected cities. These changes affect the absorption of solar radiation, surface temperature, evaporation rates, storage of heat, wind turbulence and can drastically alter the conditions of the near-surface atmosphere over the cities (Mallick et al, 2008). The structures and the land covers of the urban and rural areas are different which causes the UHI effect. The human induced release of moisture and heat contribute to the UHI effect of the city (Stewart and Oke, 2012). The natural surface energy and radiation balance gets disturbed by such activities making the cities warmer (Oke,1982, Lowry and Lowry, 2001)
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