Journal of the Korean Society for Aviation and Aeronautics (한국항공운항학회지)

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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Low Level Wind Shear Characteristics and Predictability at the Jeju International Airport

제주국제공항 저층급변풍 발생 특성 및 예측 성능

  • 김근회 (국립기상과학원 기상응용연구부) ;
  • 최희욱 (국립기상과학원 기상응용연구부) ;
  • 석재혁 (국립기상과학원 기상응용연구부) ;
  • 이상삼 (국립기상과학원 기상응용연구부) ;
  • 이용희 (국립기상과학원 기상응용연구부)
  • Received : 2023.07.10
  • Accepted : 2023.07.25
  • Published : 2023.09.30
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Abstract

Sudden wind changes at low altitudes pose a significant threat to aircraft operations. In particular, airports located in regions with complex terrain are susceptible to frequent abrupt wind variations, affecting aircraft takeoff and landing. To mitigate these risks, Low Level Wind shear Alert System (LLWAS) have been implemented at airports. This study focuses on understanding the characteristics of wind shear and developing a prediction model for Jeju International Airport, which experiences frequent wind shear due to the influence of Halla Mountain and its surrounding terrain. Using two years of LLWAS data, the study examines the occurrence patterns of wind shear at Jeju International Airport. Additionally, high-resolution numerical model is utilized to produce forecasted information on wind shear. Furthermore, a comparison is made between the predicted wind shear and LLWAS observation data to assess the prediction performance. The results demonstrate that the prediction model shows high accuracy in predicting wind shear caused by southerly winds.

Keywords

Acknowledgement

이 연구는 기상청 국립기상과학원 「수요자 맞춤형 기상정보 산출기술 개발 연구」(KMA2018-00622)의 지원으로 수행되었습니다.

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