Asia-Pacific Journal of Atmospheric Sciences

Korean Meteorological Society (한국기상학회)
권호 표지

Numerical Studies for the Effects of Complicate Coastal Area on Variation of Mesoscale Circulation

해안지형 복잡성이 중규모순환장에 미치는 영향에 관한 수치실험

Ryu, Chan-Su;Shin, Yoo-Mi;Lee, Soon-Hwan
류찬수;신유미;이순환

  • Published : 20040000
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Abstract

Mesoscale circulation around the coastal area of the Korean peninsula is generally complicated by the influence of complex terrain. Especially, mesoscale circulations in Honam area are affected by not only the influence of high topography (mountain-valley breeze) but also heterogeneous land-surface property (land-sea breeze). Thus there are mountain valley breezes as well as land-sea breezes in the area, simultaneously. In order to reveal the influence of complexity of coastal area on mesoscale atmosphere circulation, numerical experiments of three-dimensional atmospheric dynamic model are carried out. Mesoscale model SMART used in this experiment is non-hydrostatic terrain following coordinate system with multi-layer atmosphere and one layer canopy. Turbulence induced by complexity of coastal line and numerous islands prevents mesoscale circulation to develop stronger. And atmospheric stability is also important factor to predict mesoscale circulation variation. It is considered that the influence of topography changes with atmospheric stability and is clearer under strong stable condition than weakly stable condition.

Keywords

References

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