Journal of the Optical Society of Korea

  • 제14권3호
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  • Pages.221-227
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  • 2010
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Measurement of Aerosol Parameters with Altitude by Using Two Wavelength Rotational Raman Signals

  • Song, Im-Kang (Department of Physics, Kongju National University) ;
  • Kim, Yong-Gi (Department of Physics, Kongju National University) ;
  • Baik, Sung-Hoon (Laboratory for Quantum Optics, Korea Atomic Energy Research Institute) ;
  • Park, Seung-Kyu (Laboratory for Quantum Optics, Korea Atomic Energy Research Institute) ;
  • Cha, Hyung-Ki (Laboratory for Quantum Optics, Korea Atomic Energy Research Institute) ;
  • Choi, Sung-Chul (Laboratory for Quantum Optics, Korea Atomic Energy Research Institute) ;
  • Chung, Chin-Man (Laboratory for Quantum Optics, Korea Atomic Energy Research Institute) ;
  • Kim, Duk-Hyeon (Division of Cultural Studies, Hanbat National University)
  • 투고 : 2010.07.02
  • 심사 : 2010.08.30
  • 발행 : 2010.09.25
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초록

Aerosol size distribution provides good information for predicting weather changes and understanding cloud formation. Aerosol extinction coefficient and backscattering coefficient are measured by many scientists, but these parameters depend not only on aerosol size but on aerosol concentrations. An algorithm has been developed to measure aerosol parameters such as ${\AA}$ngstr$\ddot{o}$m exponent, color ratio, and LIDAR ratio without any assumptions by using two wavelength rotational Raman LIDAR signals. These parameters are good indicators for the aerosol size. And we can find ${\AA}$ngstr$\ddot{o}$m exponent, color ratio, and LIDAR ratio under various weather conditions. Finally, it can be seen that the ${\AA}$ngstr$\ddot{o}$m exponent has an inverse relationship to the particle size of the aerosol and the color ratio is linearly dependent on the aerosol size. An ${\AA}$ngstr$\ddot{o}$m exponent from 1.2 to 3.1, a color ratio from 0.28 to 1.04, and a LIDAR ratio 66.9 sr at 355 nm and 32.6 sr at 532 nm near the cloud were obtained.

키워드

참고문헌

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피인용 문헌

  1. Aerosol and cloud characteristics analysis methods using multiple kinds of Raman lidar signals vol.124, pp.12, 2013, https://doi.org/10.1016/j.ijleo.2012.03.012
  2. Low Stratospheric Wind Measurement Using Mobile Rayleigh Doppler Wind LIDAR vol.16, pp.2, 2012, https://doi.org/10.3807/JOSK.2012.16.2.141
  3. The Variation of Radiation Transmittance by the cw 1.07 ㎛ Fiber Laser and Water Aerosol Interaction vol.16, pp.3, 2012, https://doi.org/10.3807/JOSK.2012.16.3.191