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http://dx.doi.org/10.14249/eia.2014.23.6.477

Effects of Physical environmental factors on Radiation fluxes in Urban areas  

Song, Bonggeun (National Institute of Ecology)
Park, Kyunghun (Dept. of Environmental Engineering, Changwon National University)
Publication Information
Journal of Environmental Impact Assessment / v.23, no.6, 2014 , pp. 477-491 More about this Journal
Abstract
The purpose of this study is to develop urban planning for mitigating thermal comfort by analyzing the relationship between various physical environmental factors and radiation fluxes focused on urban areas of Changwon city, Gyeongsangnam-do. Physical environmental factors were analyzed by sky view factor (SVF), land cover and land use types using GIS program. Radiation fluxes were measured upward and downward in solar and terrestrial radiation by mobile measurement during 3 days (2 daytime and 1 nighttime) in summer season. SVF is high in urban park less around buildings. High dense building sites were low. Downward solar radiation fluxes were the highest about $700W/m^2$ at daytime, and decreased in spatial type arranged dense buildings. Upward solar and terrestrial radiations was affected by land cover types that have thermal features such as reflectivity, emissivity, and heat capacity. Therefore, urban space needs appropriate planning with building arrangement, green walls and land cover replacement for mitigating thermal comfort in urban area.
Keywords
Radiation fluxes; Sky view factor; Land cover; Land use; GIS;
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Times Cited By KSCI : 4  (Citation Analysis)
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