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.

Abstract
 1. 서 론
 2. 자료 및 방법
  2.1. 해풍일 선정
  2.2. 수치모형
  2.3. 대상지역 및 연구사례일
  2.4. 해풍전선 함수
 3. 결 과
  3.1. 관측과 수치모의 지상결과
  3.2. 경계층 분석
  3.3. 단면 바람성분 분석
  3.4. 전선함수 분석
 4. 결 론
 참 고 문 헌

• 박순영(부산대학교 지구환경시스템학부) | Soon-Young Park (Division of Earth Environment System, Pusan National University)
• 이화운(부산대학교 지구환경시스템학부) | Hwa Woon Lee (Division of Earth Environment System, Pusan National University)
• 지효은(부산대학교 지구환경시스템학부) | Hyoeun Ji (Division of Earth Environment System, Pusan National University)
• 이순환(부산대학교 환경연구원) | Soon-Hwan Lee (Institute of Environment Research, Pusan National University) Corresponding Author
• 이귀옥(인제대학교 대기환경정보센터) | Kwi Ok Lee (Atmospheric Environment & Information Research Center, Inje University)