The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Retrieval of Remotely Sensed Fluid Velocity and Esimation of Its Accuracy by Eulerian Measurement

오일러 방법으로 원격 측정된 유체운동의 속도 산출과 정확도 평가

  • 김민성 (부경대학교 환경대기과학과) ;
  • 이경훈 (부경대학교 환경대기과학과) ;
  • 권병혁 (부경대학교 환경대기과학과) ;
  • 윤홍주 (부경대학교 공간정보시스템공학과)
  • Received : 2020.12.19
  • Accepted : 2021.02.17
  • Published : 2021.02.28
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Abstract

The speed and direction of the earth's fluid motion is measured by a remote sensing method using electromagnetic waves. Using UHF radar and GPS Sonde, the vertical profile of fluid velocity was calculated by the Euler measurement method and the Lagrange measurement method, respectively. Since the wind direction, which is the direction of motion of the atmosphere, is indicated in the direction of the wind blowing, and a circular value of 0° - 360° is used, it is necessary to pay attention to statistical analysis. Errors caused by calculation conditions are provided, and the corrected accuracy of comparison results is improved by 400%.

지구 유체운동의 속력과 방향은 전자기파를 이용한 원격탐사 방법으로 측정된다. UHF 레이더와 GPS 존데를 이용하여 고도별 유체의 속도를 각각 오일러 측정 방법과 라그랑지 측정 방법으로 산출하였다. 대기의 운동 방향인 풍향은 바람이 불어오는 쪽으로 표시하고, 0° - 360°의 순환값을 사용하기 때문에 통계적 분석에 주의가 필요하다. 계산 조건의 설정에 따라 발생하는 오류를 제시하였고, 수정된 비교 결과의 정밀도는 400% 까지 향상하였다.

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References

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