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Korean Meteorological Society (한국기상학회)
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Development of A Prototype Device to Capture Day/Night Cloud Images based on Whole-Sky Camera Using the Illumination Data

정밀조도정보를 이용한 전천카메라 기반의 주·야간 구름영상촬영용 원형장치 개발

  • Lee, Jaewon (Defense Intelligence Agency) ;
  • Park, Inchun (Nagoya University, Institute for Space-Earth Environmental Research) ;
  • cho, Jungho (Korea Astronomy and Space Science Institute) ;
  • Ki, GyunDo (Defense Intelligence Agency) ;
  • Kim, Young Chul (Hanseo University, Dept. of Flight Operation)
  • 이재원 (국방정보본부 지형기상정책과) ;
  • 박인춘 (나고야대학교 우주지구환경연구소) ;
  • 조정호 (한국천문연구원) ;
  • 기균도 (국방정보본부 지형기상정책과) ;
  • 김영철 (한서대학교 항공운항학과)
  • Received : 2018.07.27
  • Accepted : 2018.09.04
  • Published : 2018.09.30
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Abstract

In this study, we review the ground-based whole-sky camera (WSC), which is developed to continuously capture day and night cloud images using the illumination data from a precision Lightmeter with a high temporal resolution. The WSC is combined with a precision Lightmeter developed in IYA (International Year of Astronomy) for analysis of an artificial light pollution at night and a DSLR camera equipped with a fish-eye lens widely applied in observational astronomy. The WSC is designed to adjust the shutter speed and ISO of the equipped camera according to illumination data in order to stably capture cloud images. And Raspberry Pi is applied to control automatically the related process of taking cloud and sky images every minute under various conditions depending on illumination data from Lightmeter for 24 hours. In addition, it is utilized to post-process and store the cloud images and to upload the data to web page in real time. Finally, we check the technical possibility of the method to observe the cloud distribution (cover, type, height) quantitatively and objectively by the optical system, through analysis of the captured cloud images from the developed device.

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References

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