한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제30권2호
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  • Pages.139-149
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  • 2014
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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인공위성 관측자료와 궤적분석을 이용한 Eyjafjallajökull 화산재 감시와 예측

Monitoring and Forecasting the Eyjafjallajökull Volcanic Ash using Combination of Satellite and Trajectory Analysis

  • 이권호 (경일대학교 공간정보공학과)
  • Lee, Kwon Ho (Department of Geoinformatics Engineering, Kyungil University)
  • 투고 : 2014.02.21
  • 심사 : 2014.03.25
  • 발행 : 2014.04.30
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초록

A new technique, namely the combination of satellite and trajectory analysis (CSTA), for exploring the spatio-temporal distribution information of volcanic ash plume (VAP) from volcanic eruption. CSTA uses the satellite derived ash property data and a matching forward-trajectories, which can generate airmass history pattern for specific VAP. In detail, VAP properties such as ash mask, aerosol optical thickness at 11 ${\mu}m$ ($AOT_{11}$), ash layer height, and effective radius from the Moderate Resolution Imaging Spectro-radiometer (MODIS) satellite were retrieved, and used to estimate the possibility of the ash forecasting in local atmosphere near volcano. The use of CSTA for Iceland's Eyjafjallaj$\ddot{o}$kull volcano erupted in May 2010 reveals remarkable spatial coherence for some VAP source-transport pattern. The CSTA forecasted points of VAP are consistent with the area of MODIS retrieved VAP. The success rate of the 24 hour VAP forecast result was about 77.8% in this study. Finally, the use of CSTA could provide promising results for VAP monitoring and forecasting by satellite observation data and verification with long term measurement dataset.

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참고문헌

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