한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제22권6호
  • /
  • Pages.940-953
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  • 2006
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지

인공위성 센서 MOPITT를 이용한 일산화탄소 모니터링: 자료처리 및 응용

Monitoring of Carbon Monoxide using MOPITT: Data Processing and Applications

  • 최성득 (토론토대학교 물리.환경과학과) ;
  • 장윤석 (포항공과대학교 환경공학부)
  • Choi, Sung-Deuk (Department of Physical and Environmental Sciences, University of Toronto at Scarborough) ;
  • Chang, Yoon-Seok (School of Environmental Science and Engineering, POSTECH)
  • 발행 : 2006.12.31
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초록

The major source of carbon monoxide (CO) at the Earth's surface is the incomplete combustion of biomass and fossil fuels. Because the global lifetime of CO is about two months, it can be used as a tracer for pollution from anthropogenic activities and biomass hurtling. In this paper, we introduced the principle and algorithm of the Measurement of Pollution in the Troposphere (MOPITT) instrument for global CO monitoring. The MOPITT instrument, which was launched on the Satellite Terra in 1999, measures CO column and mixing ratio based on gas correlation radiometry. CO levels can be determined by a retrieval algorithm based on the maximum likelihood method minimizing the difference between observed and modeled radiances. MOPITT level 2 data (HDF format) can be downloaded through the Earth Observing System (EOS) data gateway of NASA. ASCII files of CO parameters can be extracted from HDF files, and then temporal and spatial distributions can be obtained. Finally, we showed an example of CO monitoring in April 2000. The locations of forest fires and distribution of MOPITT CO clearly indicated that not only anthropogenic emissions but also forest fires play an important role in CO levels and global CO distribution. Our introduction to MOPITT and the example of MOPITT data interpretation would be helpful for scientists who want to use the EOS data.

키워드

참고문헌

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