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Application of ERA-Interim Reanalysis Data for Onshore and Offshore Wind Resource Assessment

육·해상 풍력자원평가를 위한 ERA-Interim 재해석 데이터의 적용

  • Byun, Jong-Ki (Faculty of Wind Energy Engineering, Graduate School, Jeju National University) ;
  • Ko, Kyung-Nam (Faculty of Wind Energy Engineering, Graduate School, Jeju National University)
  • 변종기 (제주대학교 대학원 풍력공학부) ;
  • 고경남 (제주대학교 대학원 풍력공학부)
  • Received : 2016.12.01
  • Accepted : 2017.04.19
  • Published : 2017.04.30

Abstract

The investigation on reliability of ERA-Interim reanalysis wind data was conducted using wind data from the five met masts measured at inland and coastal areas, Jeju island. Shinchang, Handong, Udo, Susan and Cheongsoo sites were chosen for the met mast location. ERA-Interim reanalysis data at onshore and offshore twenty points over Jeju Island were analyzed for creating Wind Statistics using WindPRO software. Reliability of ERA-Interim reanalysis wind data was assessed by comparing the statistics from the met mast wind data with those predicted at the interest point using the Wind Statistics. The relative errors were calculated for annual average wind speed and annual energy production. In addition, the trend of the error was analyzed with distance from met mast. As a result, ERA-Interim reanalysis wind data was more suitable for offshore wind resource assessment than onshore.

Keywords

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