Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Analysis of the Relation between Spatial Resolution of Initial Data and Satellite Data Assimilation for the Evaluation of Wind Resources in the Korean Peninsula

한반도 풍력자원 평가를 위한 초기 공간해상도와 위성자료 동화의 관계 분석

  • Lee, Soon-Hwan (BK21 Coastal Environment System School, Pusan National University) ;
  • Lee, Hwa-Woon (Department of Earth Environmental System, Pusan National University) ;
  • Kim, Dong-Hyuk (Department of Earth Environmental System, Pusan National University) ;
  • Kim, Hyeon-Gu (Korea Institute of Energy Research)
  • 이순환 (부산대학교 BK21 연안환경시스템 사업단) ;
  • 이화운 (부산대학교 지구환경시스템학부) ;
  • 김동혁 (부산대학교 지구환경시스템학부) ;
  • 김현구 (한국에너지기술연구원)
  • Published : 2007.12.31
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Abstract

Several numerical experiments were carried out to clarify the influence of satellite data assimilation with various spatial resolution on mesoscale meteorological wind and temperature field. Satellite data used in this study is QuikSCAT launched on ADEOS II. QuikSCAT data is reasonable and faithful sea wind data, which have been verified through many observational studies. And numerical model in the study is MM5 developed by NCAR. Difference of wind pattern with and without satellite data assimilation appeared clearly, especially wind speed dramatically reduced on East Sea, when satellite data assimilation worked. And sea breeze is stronger in numerical experiments with RDAPS and satellite data assimilation than that with CDAS and data assimilation. This caused the lower estimated surface temperature in CDAS used cases. Therefore the influence of satellite data assimilation acts differently according to initial data quality. And it is necessary to make attention careful to handle the initial data for numerical simulations.

Keywords

References

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