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A Study on Effect of Improvement Plan for Wind Energy Forecasting

풍력 발전 예보 정확도 향상을 위한 국지 기상장 수치모의 개선 방안 연구

  • Jung, Ji-A (Division of Earth Environmental System, Pusan National University) ;
  • Lee, Hwa-Woon (Division of Earth Environmental System, Pusan National University) ;
  • Jeon, Won-Bae (Institute of Environment Studies, Pusan National University) ;
  • Kim, Dong-Hyeok (Institute of Environment Studies, Pusan National University) ;
  • Kim, Hyun-Goo (Korean Institute of Energy Research) ;
  • Kang, Young-Heack (Korean Institute of Energy Research)
  • 정지아 (부산대학교 지구환경시스템학부) ;
  • 이화운 (부산대학교 지구환경시스템학부) ;
  • 전원배 (부산대학교 환경연구원) ;
  • 김동혁 (부산대학교 환경연구원) ;
  • 김현구 (한국에너지기술연구원 신재생에너지 지원센터) ;
  • 강용혁 (한국에너지기술연구원 신재생에너지 지원센터)
  • Received : 2014.10.28
  • Accepted : 2015.02.26
  • Published : 2015.02.28

Abstract

This study investigates the impact of enhanced regional meteorological fields on improvement of wind energy forecasting accuracy in the southwestern coast of the Korean Peninsula. To clarify the effect of detailed surface boundary data and application of analysis nudging technique on simulated meteorological fields, several WRF simulations were carried out. Case_LT, which is a simulation with high resolution terrain height and land use data, shows the most remarkable accuracy improvement along the shoreline mainly due to modified surface characteristics such as albedo, roughness length and thermal inertia. Case_RS with high resolution SST data shows accurate SST distributions compared to observation data, and they led to change in land and sea breeze circulation. Case_GN, grid nudging applied simulation, also shows changed temperature and wind fields. Especially, the application of grid nudging dominantly influences on the change of horizontal wind components in comparison with vertical wind component.

Keywords

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