한국정보통신학회논문지 (Journal of the Korea Institute of Information and Communication Engineering)

  • 제25권10호
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  • Pages.1345-1352
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  • 2021
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  • 2234-4772(pISSN)
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  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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국지적 기상 레이다에서의 기상 변화 탐지 방법 분석

Analysis of Detection Method for the Weather Change in a Local Weather Radar

  • Lee, Jonggil (Department of Information and Telecommunication Engineering, Incheon National University)
  • 투고 : 2021.07.11
  • 심사 : 2021.09.20
  • 발행 : 2021.10.31
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초록

대부분의 기상 레이다 시스템은 중장거리용으로 매우 넓은 지역의 전체적인 기상 현상을 파악하는 목적으로 사용된다. 그러나 최근에 와서는 국지적인 재난현상의 빈발 가능성이 높아짐에 따라 국지적인 기상 레이다를 활용한 기상이변 현상의 탐지가 매우 중요한 문제이다. 따라서 이러한 국지적인 기상 이변 탐지목적의 기상 레이다는 저고도 탐지 및 급변하는 기상상황의 빠른 탐지가 필요하다. 또한 상대적으로 지표면 클러터가 큰 영향을 미치게 된다. 따라서 본 논문에서에서는 풍속의 변화정도 및 거리에 따른 풍속의 변화율을 이용하여 돌풍 및 풍속 전단현상 등의 급변하는 기상 위험 등을 탐지할 수 있는 방법을 제안하고 분석하였다. 제안한 방법은 탐지과정에서의 지표면 클러터에 의한 영향을 최소화 할 수 있고 빠른 탐지를 위한 간단한 알고리즘 구현이 가능한 방식으로서 향후 기상변화 탐지에 유용하게 활용될 수 있음을 보였다.

Most of weather radar systems are used to monitor the whole weather situation for the very wide and medium-to-long range area. However, as the likelihood of occurrence of the local weather hazards is increased in recent days, it is very important to detect these wether phenomena with a local weather radar. For this purpose, it is necessary to detect the fast varying low altitude weather conditions and the effect of the ground surface clutter is more evident. Therefore, in this paper, the newly suggested method is explained and analyzed for detection of weather hazards such as the gust and wind shear using the fluctuation of wind velocities and the gradient of wind velocities among range cells. It is shown that the suggested method can be used efficiently in the future for faster detection of weather change through the simple algorithm implementation and also the effect of the ground clutter can be minimized in the detection procedure.

키워드

과제정보

This work was supported by Incheon National University Research Grant in 2020.

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