バイスタティックライダによる大気エアロゾルの粒径分布の測定

• 吉山 秀典

  資源環境技術総合研究所

• 大井 明彦

  資源環境技術総合研究所

• 太田 一之

  資源環境技術総合研究所

書誌事項

タイトル別名

• Measurement of Particle Size Distribution of Ambient Aerosol by Bistatic Lidar System

抄録

A new analytical system to determine the size distribution of atmospheric aerosols, which includes optical constant, was developed and applied to the measurement of the size distribution of mist and ambient aerosols. The scattered light was measured with a bistatic lidar system using an 8 wavelength laser beam as the light sources at a 179 degree scattering angle. The particle size distributions of those two types of atmospheric aerosols were estimated using the singular value decomposition (SVD) from the scattered light. The method successfully retrieved the size distribution in the case of mist for which the imaginary part of refractive index was set at 0.001 rather than 0.0 and the wavelength dependence of the real part was included. The size distribution of the mist was inverted to the log-normal distribution, and the size distribution of the ambient aerosol particle to the Junge distribution, when the real part of refractive index was fixed at 1.5 and the imaginary part at 0.001 or 0.0. This method was able to discriminate the size distributions of mist and ambient aerosols.

収録刊行物

• エアロゾル研究

  エアロゾル研究 14 (2), 111-118, 1999

  日本エアロゾル学会

キーワード

• Size Distribution
• Ambient Aerosol
• Bistatic Lidar System
• Multiwavelength Laser

詳細情報

• CRID: 1390001204341037952
• NII論文ID: 10002783333
• NII書誌ID: AN10041511
• DOI: 10.11203/jar.14.111
• ISSN: 1881543X
• ISSN: 09122834
• NDL書誌ID: 4775279
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4775279
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可