Remote Sensing Based Microclimate Change Study in Clustered Industrial Areas of Addis Ababa City.
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Date
2018-10
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Addis Ababa University
Abstract
Microclimatic warming is the major effect of industrial expansion in urban areas like Addis Ababa. Monitoring of microclimatic warming at local scale is very required to take proper decision. However, microclimatic warming with respect to recent industrial development in Addis Ababa city is not yet investigated. Thus, in this study multi temporal Landsat satellite images are used to evaluate the spatio-temporal trend of microclimate warming in urban areas of Addis Ababa. Thermal infrared and near infrared portion of the electromagnetic spectrum of Landsat satellite imageries are employed to compute land surface temperature which is used as a warming indicator of microclimatic warming. Landsat imageries which were taken up during 1985 G.C to 2018 G.C are considered in this study. Apart from satellite imageries, temperature data from ground station is obtained from National Meteorological Agency of Ethiopia. This data is used to evaluate against satellite derived land surface temperature. Result from this study shows that in general temperature in Addis Ababa has been increased in the last 33 years and this particularly exhibited in clustered industrial zones of the city whereby the rate of temperature increment is higher compared to the whole city. This clearly indicates that the association of industries expansion and temperature rise is directly associated. Based on this information, solutions are suggested to manage the effect of industrial expansion on local microclimatic warming.
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Keywords
Microclimate Change, Clustered Industrial Areas, Addis Ababa City, Remote Sensing