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http://dx.doi.org/10.14191/Atmos.2015.25.2.339

A Study on the Roughness Length Spatial Distribution in Relation to the Seoul Building Morphology  

Yi, Chaeyeon (Weather Information Service Engine Project, Hankuk University of Foreign Studies)
Kwon, Tae Heon (Weather Information Service Engine Project, Hankuk University of Foreign Studies)
Park, Moon-Soo (Weather Information Service Engine Project, Hankuk University of Foreign Studies)
Choi, Young Jean (Weather Information Service Engine Project, Hankuk University of Foreign Studies)
An, Seung Man (Department of Landscape Architecture, Sungkyunkwan University)
Publication Information
Atmosphere / v.25, no.2, 2015 , pp. 339-351 More about this Journal
Abstract
The purpose of this study is for the fundamental understandings about building morphological parameters and aerodynamic roughness parameters of Seoul, Korea using the detailed urban geographic information datasets. Applied roughness parameter calculations are based on a digital map of buildings with lot area polygons. The quality of the developed roughness length ($z_0$) of Seoul was evaluated with densely installed 107 automatic weather stations. The correlation coefficient results between averaged wind speeds of AWS data and averaged $z_0$ is -0.303 in night and -0.398 in day (200 m radii circles case). Further $z_0$ enhancement should follow by considering other surface features such as high tree and orography of Seoul. However, this study would meet the needs to for local- or meso-scale meteorological modeling applications of Seoul. However, further studies would require for enhancing the $z_0$ applications of Seoul.
Keywords
Seoul land surface; building canopy morphology; roughness length; zero plane displacement;
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Times Cited By KSCI : 4  (Citation Analysis)
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