A Study on High-resolution Numerical Simulation with Detailed Classification of Landuse and Anthropogenic Heat in Seoul Metropolitan area
2017
Lee, H., Weather Information Service Engine, Hankuk University of Foreign Studies, Republic of Korea | Jee, J.B., Weather Information Service Engine, Hankuk University of Foreign Studies, Republic of Korea | Min, J.S., Weather Information Service Engine, Hankuk University of Foreign Studies, Republic of Korea
In this study, the high-resolution numerical simulation results considering landuse characteristics are analyzed by using single layer Urban Canopy Model (UCM) in Weather Research Forecast (WRF). For this, the impact of urban parameters such as roughness length and anthropogenic heat in UCM is analyzed. These values are adjusted to Seoul metropolitan area in Korea. The results of assessment are verified against observation from surface and flux tower. Forecast system equipped with UCM shows an overall improvement in the simulations of meteorological parameters, especially temperature at 2 m, surface sensible and latent heat flux. Major contribution of UCM is appreciably found in urban area rather than non-urban. The non-urban area is indirectly affected. In simulated latent heat flux, applying UCM is possible to simulate the change similarly with observations on urban area. Anthropogenic heat employed in UCM shows the most realistic results in terms of temperature and surface heat flux, indicating thermodynamic treatment of UCM could enhance the skills of high resolution forecast model in urban and non-urban area.
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