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Retrieval of Depolarization ratio using Sunphotometer data and Comparison with LIDAR Depolarization ratio
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  • Journal title : Korean Journal of Remote Sensing
  • Volume 32, Issue 2,  2016, pp.97-104
  • Publisher : The Korean Society of Remote Sensing
  • DOI : 10.7780/kjrs.2016.32.2.3
 Title & Authors
Retrieval of Depolarization ratio using Sunphotometer data and Comparison with LIDAR Depolarization ratio
Kim, Kwanchul; Choi, Sungchul; Noh, Youngmin;
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 Abstract
We present linear particle depolarization ratio at 440, 675, 870, and 1020 nm retrieved from measurements with an AERONET sun/sky radiometer at Osaka, Japan. The retrieved data were compared with lidar derived linear particle depolarization ratio at 532 nm at the same site. We find good agreement between linear particle depolarization ratios derived with Sun photometer and measured by lidar except for those at 440 nm. The coefficients of determination between lidar derived data and sun/sky radiometer derived data were 0.28, 0.81, 0.88, and 0.89 at 440, 675, 870, and 1020 nm, respectively. We find that the linear particle depolarization ratio derived with sun/sky radiometer varies by the mixing between Asian dust and pollution particles. As the mixing ratio of Asian dust and pollution particles is increased, the linear particle depolarization ratio values are lower than the values of pure Asian dust. It was confirmed by the value of single-scattering albedo and particle size distribution.
 Keywords
linear particle depolarization ratio;AERONET;sun/sky radiometer;lidar;
 Language
Korean
 Cited by
1.
Aerosol Optical Properties Retrieval and Separation of Asian Dust using AERONET Sun/Sky Radiometer Measurement at the Asian Dust Source Region, Korean Journal of Remote Sensing, 2016, 32, 3, 245  crossref(new windwow)
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