Simulation of Urban Heat Island Effects on the Microclimate: Using ENVI-met Model
Parisa Shahmohamadi, Ulrich Cubasch, Sahar Sodoudi
Institut für Meteorologie, Freie Universität Berlin, Germany
This paper used the tree-dimensional microclimate model ENVI-met 4.0 which prognosticates the microclimate changes within urban environments to simulate the UHI intensity in 6 urban district of Tehran metropolitan area. The variables used in this study are higher albedo materials and vegetation cover. Three different scenarios have been defined including: 1. covering horizontal and vertical surfaces with higher albedo materials; 2. covering vertical and horizontal surfaces with vegetation covers and 3. covering vertical and horizontal surfaces with vegetation covers and high albedo material altogether. To observe the effect of each single and both variables on mitigating urban heat island in an urban area. The simulations, which run in a hot summer day for 24 hours, are compared and the results are discussed.
Key Words: ENVI-met, High Albedo Material, Vegetation Cover, Urban Heat Island.