Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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The Application of High-resolution Land Cover and Its Effects on Near-surface Meteorological Fields in Two Different Coastal Areas

연안지역 특성에 따른 상세 토지피복도 적용 효과 및 기상장에 미치는 영향 분석

  • Jeong, Ju-Hee (Division of Earth Environmental System, Pusan National University) ;
  • Kim, Yoo-Keun (Division of Earth Environmental System, Pusan National University)
  • 정주희 (부산대학교 지구환경시스템학부) ;
  • 김유근 (부산대학교 지구환경시스템학부)
  • Published : 2009.10.31
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Abstract

In this study, the effects of high-resolution land cover on the simulation of near-surface meteorological fields were evaluated in two different coastal regions using Weather Research and Forecasting (WRF) model. These analyses were performed using the middle classification land cover data upgraded by the Korean Ministry of Environment (KME). For the purpose of this study, two coastal areas were selected as follows: (1) the southwestern coastal (SWC) region characterized by complex shoreline and (2) the eastern coastal (EC) region described a high mountain and a simple coastline. The result showed that the application of high-resolution land cover were found to be notably distinguished between the SWC and EC regions. The land cover improvement has contributed to generate the realistic complex coastline and the distribution of small islands in the SWC region and the expansion of urban and built-up land along the sea front in the EC region, respectively. The model study indicated that the improvement of land cover caused a temperature change on wide areas of inland and nearby sea for the SWC region, and narrow areas along the coastal line for the EC region. These temperature variations in the two regions resulted in a decrease and an increase in land-breeze and sea-breeze intensity, respectively (especially the SWC region). Interestingly, the improvement of land cover can contribute large enough to change wind distributions over the sea in coastal areas.

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References

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