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Evaluation of UHF Radar Data

UHF 레이더 자료의 품질 평가

  • 이경훈 (부경대학교 지구환경시스템과학부) ;
  • 권병혁 (부경대학교 환경대기과학과) ;
  • 윤홍주 (부경대학교 공간정보시스템공학과)
  • Received : 2021.04.19
  • Accepted : 2021.06.17
  • Published : 2021.06.30

Abstract

The performance of wind profilers were evaluated in Bukgangneung and Changwon, where both wind profilers and radiosonde are being operated. From December 2019 to November 2020, the acquisition rate of wind speed data by altitude and month was investigated and compared with the wind speed of radiosonde. The acquisition rate of normal data increased at the minimal observable altitude, and then decreased again from 2 km or more at the two observation sites. The acquisition rate was high in summer (June, July, August), and low in winter (December, January, February). The results compared with radiosonde showed high correlation of 0.9 in the high mode and 0.8 in the low mode.

윈드프로파일러와 라디오존데 관측을 함께 하고 있는 북강릉과 창원의 윈드프로파일러에 대한 성능을 평가하였다. 2019년 12월부터 2020년 11월까지 1년간 고도별·월별 풍속 자료 수집률을 조사하고, 라디오존데의 풍속과 비교하였다. 두 관측 지점의 정상 자료 수집률은 최저 관측 고도에서 낮다가 증가하였고, 2 km 이상부터 다시 감소하였다. 여름철(6, 7, 8월)의 수집률이 높았고, 겨울철(12, 1, 2월)의 수집률이 낮았다. 라디오존데와 비교한 결과는 고층 모드에서 0.9, 저층 모드에서 0.8의 높은 상관관계를 보였다.

Keywords

Acknowledgement

이 연구는 방위사업청 및 기상청(과제번호: 17-CM-SS-23, KMA2017-04210)의 지원을 받아 수행되었습니다.

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