Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Retrieval of Lidar Overlap Factor using Raman Lidar System

라만 라이다 시스템을 이용한 라이다 중첩함수 산출

  • Noh, Young-M. (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology) ;
  • Muller, Detlef (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology) ;
  • Shin, Dong-Ho (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology) ;
  • Lee, Kyung-Hwa (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology)
  • 노영민 (광주과학기술원 환경공학과) ;
  • ;
  • 신동호 (광주과학기술원 환경공학과) ;
  • 이경화 (광주과학기술원 환경공학과)
  • Published : 2009.10.31
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Abstract

The range-dependent overlap factor of a lidar system can be determined experimentally if a Raman backscatter signal by molecule is measured in addition to the usually observed elastic backscatter signal, which consists of a molecular component and a particle component. The direct determination of the overlap profile is presented and applied to a lidar measurement according to variation of telescope field-of-view and distance between telescope and transmitting laser. The retrieval of extinction coefficient by Raman method can generate high errors for heights below planetary boundary layer if the overlap effect is ignored. The overlap correction method presented here has been successfully applied to experimental data obtained in Gwangju, Korea.

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References

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