Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Analysis of Numerical Meteorological Fields due to the Detailed Surface Data in Complex Coastal Area

복잡 연안지역의 지표면 자료 상세화에 따른 수치 기상장 분석

  • Lee, Hwa-Woon (Division of Earth Environmental System, Pusan National University) ;
  • Jeon, Won-Bae (Division of Earth Environmental System, Pusan National University) ;
  • Lee, Soon-Hwan (BK21 Coastal Environment System School, Pusan National University) ;
  • Choi, Hyun-Jung (Division of Earth Environmental System, Pusan National University)
  • 이화운 (부산대학교 지구환경시스템학부) ;
  • 전원배 (부산대학교 지구환경시스템학부) ;
  • 이순환 (부산대학교 BK21 연안환경시스템사업단) ;
  • 최현정 (부산대학교 지구환경시스템학부)
  • Published : 2008.12.31
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Abstract

The impact of the detailed surface data on regional meteorological fields in complex coastal area is studied using RAMS. Resolutions of topography and land use data are very important to numerical modeling, because high resolution data can reflect correct terrain height and detail characteristics of the surface. Especially, in complex coastal region such as Gwangyang area, southern area in Korean Peninsula, high resolution topography and land use data are indispensable for accurate modeling results. This study investigated the effect of resolutions of terrain data using SRTM with 3 second resolution topography and KLU with 1 second resolution land use data. Case HR was the experiment using high resolution data, whereas Case LR used low resolution data. In Case HR, computed surface temperature was higher than Case LR along the coastline and wind speed was $1{\sim}2m/s$ weaker than Case LR. Time series of temperature and wind speed indicated great agreement with the observation data. Moreover, Case HR indicated outstanding results on statistical analysis such as regression, root mean square error, index of agreement.

Keywords

References

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