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http://dx.doi.org/10.5572/KOSAE.2012.28.2.119

A Study of Urban Heat Island in Chuncheon Using WRF Model and Field Measurements  

Lee, Chong-Bum (Department of Environmental Science, Kangwon National University)
Kim, Jea-Chul (Department of Environmental Science, Kangwon National University)
Jang, Yun-Jung (Department of Environmental Science, Kangwon National University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.28, no.2, 2012 , pp. 119-130 More about this Journal
Abstract
Heat island phenomena in Chuncheon (Korea) were investigated using air temperature measured by automatic weather stations and temperature dataloggers located at rural and urban sites. Numerical simulation of the phenomena was performed using Weather Research and Forecasting Urban Canopy Model (WRF-UCM) and results were compared with the observation. The model was initialized with NCEP/FNL data. The horizontal resolution of the fine domain is 0.33 km. The results of observational analyses show that the intensity of heat island was significantly higher during the nighttime than during the daytime. The highest measured temperature difference between rural and urban site is $3.49^{\circ}C$ and average temperature difference varies between 1.4 and $1.9^{\circ}C$. Good agreement was found between the simulated and observed temperatures. However, significantly overestimated wind speed was found at the urban sites. The linear regression analysis between observed and simulated temperature shows high correlation coefficient 0.96 for urban and 0.94 for rural sites while for wind speed, a very low correlation coefficient was found, 0.30 and 0.55 respectively.
Keywords
Urban heat island; Chuncheon; WRF; UCM;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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