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Korean Meteorological Society (한국기상학회)
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Retrieval and Accuracy Evaluation of Horizontal Winds from Doppler Lidars During ICE-POP 2018

도플러 라이다를 이용한 ICE-POP 2018 기간 수평바람 연직 프로파일 산출 및 정확도 평가

  • Kim, Kwonil (Department of Atmospheric Sciences, Center for Atmospheric REmote Sensing (CARE), Kyungpook National University) ;
  • Lyu, Geunsu (Department of Atmospheric Sciences, Center for Atmospheric REmote Sensing (CARE), Kyungpook National University) ;
  • Baek, SeungWoo (Department of Atmospheric Sciences, Center for Atmospheric REmote Sensing (CARE), Kyungpook National University) ;
  • Shin, Kyuhee (Department of Atmospheric Sciences, Center for Atmospheric REmote Sensing (CARE), Kyungpook National University) ;
  • Lee, GyuWon (Department of Atmospheric Sciences, Center for Atmospheric REmote Sensing (CARE), Kyungpook National University)
  • 김권일 (경북대학교 대기과학과 대기원격탐사연구소) ;
  • 류근수 (경북대학교 대기과학과 대기원격탐사연구소) ;
  • 백승우 (경북대학교 대기과학과 대기원격탐사연구소) ;
  • 신규희 (경북대학교 대기과학과 대기원격탐사연구소) ;
  • 이규원 (경북대학교 대기과학과 대기원격탐사연구소)
  • Received : 2022.01.26
  • Accepted : 2022.04.19
  • Published : 2022.06.30
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Abstract

This study aims to evaluate the accuracy of retrieved horizontal winds with different quality control methods from three Doppler lidars deployed over the complex terrain during the PyeongChang 2018 Olympic and Paralympic games. To retrieve the accurate wind profile, this study also proposes two quality control methods to distinguish between meteorological signals and noises in the Doppler velocity field, which can be broadly applied to different Doppler lidars. We evaluated the accuracy of retrieved winds with the wind measurements from the nearby or collocated rawinsondes. The retrieved wind speed and direction show a good agreement with rawinsonde with a correlation coefficient larger than 0.9. This study minimized the sampling error in the wind evaluation and estimation, and found that the accuracy of retrieved winds can reach ~0.6 m s-1 and 3° in the quasi-homogeneous wind condition. We expect that the retrieved horizontal winds can be used in the high-resolution analysis of the horizontal winds and provide an accurate wind profile for model evaluation or data assimilation purposes.

Keywords

Acknowledgement

이 논문은 2018학년도 경북대학교 국립대학육성사업 지원비에 의하여 연구되었습니다. DGW와 GWU 도플러 라이다를 지원해주신 것에 대해 Environment and Climate Change Canada의 Stella Melo 박사님, Daniel Michelson 박사님, Paul Joe 박사님께 감사드립니다. 또한, 세계기상기구 연구개발사업과 예보시범사업의 일환인 평창국제공동연구프로젝트(ICE-POP 2018)를 주최한 기상청과 모든 참가자분들께 깊은 감사의 말씀을 드립니다.

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