국지규모 지형영향을 고려하기 위한 MM5-A2C 결합모델링특성 분석 The Analysis of Regional Scale Topographic Effect Using MM5-A2C Coupling Modeling

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The terrain features and surface characteristics are the most important elements not only in meteorological modeling but also in air quality modeling. The diurnal evolution of local climate over complex terrain may be significantly controlled by the ground irregularities. Such topographic features can affect a thermally driven flow, either directly by causing changes in the wind direction or indirectly, by inducing significant variations in the ground temperature. Over a complex terrain, these variations are due to the nonuniform distribution of solar radiation, which is highly determined by the ground geometrical characteristics, i.e. slope and orientation. Therefore, the accuracy of prediction of regional scale circulation is strong associated with the accuracy of land-use and topographic information in meso-scale circulation assessment. The objective of this work is a numerical simulation using MM5-A2C model with the detailed topography and land-use information as the surface boundary conditions of the air flow field in mountain regions. Meteorological conditions estimated by MM5-A2C command a great influence on the dispersion of mountain areas with the reasonable feature of topography where there is an important difference in orographic forcing.
Publisher
KOREAN EARTH SCIENCE SOC
Issue Date
2015-06
Language
Korean
Article Type
Article
Citation

JOURNAL OF THE KOREAN EARTH SCIENCE SOCIETY, v.36, no.3, pp.210 - 221

ISSN
1225-6692
DOI
10.5467/JKESS.2015.36.3.210
URI
http://hdl.handle.net/10203/261692
Appears in Collection
RIMS Journal Papers
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