Journal of the Optical Society of Korea

  • 제18권5호
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  • Pages.605-610
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  • 2014
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Measurement of Cloud Velocity and Altitude Using Lidar's Range Detection and Digital Image Correlation

  • 투고 : 2014.09.04
  • 심사 : 2014.09.23
  • 발행 : 2014.10.25
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초록

Clouds play an important role in climate change, in the prediction of local weather, and also in aviation safety when instrument assisted flying is unavailable. Presently, various ground-based instruments used for the measurements of the cloud base height or velocity. Lidar techniques are powerful and have many applications in climate studies, including the clouds' temperature measurement, the aerosol particle properties, etc. Otherwise, it is very circumscribed in cloud velocity measurements because there is no Doppler effect if the clouds move in the perpendicular direction to the laser beam path of Doppler lidar. In this paper, we present a method for the measurement of cloud velocity using lidar's range detection and DIC (Digital Image Correlation) system to overcome the disadvantage of Doppler lidar. The lidar system acquires the distance to the cloud, and the cloud images are tracked using the developed fast correlation algorithm of DIC. We acquired the velocities of clouds using the calculated distance and DIC algorithm. The measurement values had a linear distribution.

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참고문헌

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피인용 문헌

  1. Premixing photon-counting chirped amplitude modulation lidar for range and velocity measurement in photon starved scenes vol.127, pp.24, 2016, https://doi.org/10.1016/j.ijleo.2016.09.109