Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Impact of the Variation of Sea Breeze Penetration due to Terrain Complexity on PBL Development

해안지형의 복잡성에 따른 해풍침투 변화가 대기경계층에 미치는 영향 분석

  • Park, Soon-Young (Division of Earth Environment System, Pusan National University) ;
  • Lee, Hwa-Woon (Division of Earth Environment System, Pusan National University) ;
  • Lee, Soon-Hwan (Institute of Environment Research, Pusan National University) ;
  • Lee, Kwi-Ok (Atmospheric Environment & Information Research Center, Inje University) ;
  • Ji, Hyo-Eun (Division of Earth Environment System, Pusan National University)
  • 박순영 (부산대학교 지구환경시스템학부) ;
  • 이화운 (부산대학교 지구환경시스템학부) ;
  • 이순환 (부산대학교 환경연구원) ;
  • 이귀옥 (인제대학교 대기환경정보센터) ;
  • 지효은 (부산대학교 지구환경시스템학부)
  • Received : 2010.11.19
  • Accepted : 2011.01.26
  • Published : 2011.02.28
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Abstract

In order to clarify the relation between sea breeze penetration and Planetary Boundary Layer development in southeastern part of the Korean Peninsula, several numerical assessments were carried out using atmospheric numerical model WRF(Weather Research and Forecasting). Compared with onset time of sea breeze at eastern coast area(Uljin), the time at southern coast region(Masan) with complex costal line tend to delay for several hours. The penetration patterns of sea breeze between two coastal regions are some different due to the shape of their coastal line and back ground topography. Intensified valley wind due to high topography of lee side of Uljin can help penetration of sea breeze at early time. So penetration of sea breeze at early time often prevent PBL to develop at Uljin and lower PBL height last for a day time. But because of late penetration of sea breeze at Masna, PBL Height dramatically decrease after 1500LST. The distribution of front genesis function based on the heat and momentum variation are explained obviously the sea breeze penetration patterns and agreed well with the PBL height distribution.

Keywords

References

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