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Dust/smoke detection by multi-spectral satellite data over land of East Asia

동아시아 지역의 육상에서 다중채널 위성자료에 의한 황사/연무 탐지

  • Park, Su-Hyeun (Department of Atmospheric Environmental Sciences, Gangneung-Wonju National University) ;
  • Choo, Gyo-Hwang (Department of Atmospheric Environmental Sciences, Gangneung-Wonju National University) ;
  • Lee, Kyu-Tae (Department of Atmospheric Environmental Sciences, Gangneung-Wonju National University) ;
  • Shin, Hee-Woo (Department of Atmospheric Environmental Sciences, Gangneung-Wonju National University) ;
  • Kim, Dong-Chul (Department of Atmospheric Environmental Sciences, Gangneung-Wonju National University) ;
  • Jeong, Myeong-Jae (Department of Atmospheric Environmental Sciences, Gangneung-Wonju National University)
  • 박수현 (강릉원주대학교 대기환경과학과) ;
  • 추교황 (강릉원주대학교 대기환경과학과) ;
  • 이규태 (강릉원주대학교 대기환경과학과) ;
  • 신희우 (강릉원주대학교 대기환경과학과) ;
  • 김동철 (강릉원주대학교 대기환경과학과) ;
  • 정명재 (강릉원주대학교 대기환경과학과)
  • Received : 2017.03.22
  • Accepted : 2017.05.04
  • Published : 2017.06.30

Abstract

In this study, the dust/smoke detection algorithm was developed with a multi-spectral satellite remote sensing method using Moderate resolution Imaging Spectroradiometer (MODIS) Level 1B (L1B) data and the results were validated as RGB composite images of red(R; band 1), green(G; band 4), blue(B; band 3) channels using MODIS L1B data and Cloud-Aerosol Lidar with Orthogonal Polarization Satellite Observations(CALIPSO) Vertical Feature Mask (VFM) product. In the daytime on March 30, 2007 and April 27, 2012, the consistencies between the dust/smoke detected by this algorithm and verification data were approximately 56.4 %, 72.0 %, respectively. During the nighttime, the similar consistency was 40.5 % on April 27, 2012. Although these results were analyzed for limited cases due to the spatiotemporal matching for the MODIS and CALIPSO satellites, they could be used to utilize the aerosol detection of geostationary satellites for the next generations in Korea through further research.

이 연구에서는 Moderate Resolution Imaging Spectroradiometer(MODIS) Level 1.0B 자료와 다중채널 원격 탐사방법을 이용하여 황사(dust)/연무(smoke) 탐지 알고리즘을 개발하였고 결과 검증을 위하여 MODIS RGB 합성영상과 Cloud-Aerosol Lidar with Orthogonal Polarization Satellite Observations(CALIPSO)위성의 VFM(Vertical Feature Mask)자료가 사용되었다. 2007년 3월 30일과 2012년 4월 27일의 주간 사례에 대한 이 연구의 황사/연무 탐지 결과는 검증자료와 약 56.4 %, 72.0 % 일치하였으며 야간의 경우는 2012년 04월 27일 사례에 대하여 약 40.5 % 일치하였다. 그러나 이 연구 결과는 MODIS와 CALIPSO 위성의 시 공간 일치 한계 때문에 제한적 사례에 대하여 검증되었으나 추가적인 연구를 통하여 우리나라 차세대 정지궤도 기상위성의 에어로졸 탐지에 활용될 수 있을 것이다.

Keywords

References

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