多波長DIALによるSO<sub>2</sub>測定精度の理論検討

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タイトル別名
  • Analysis of SO<sub>2</sub> measurement accuracy by multiwavelength DIAL
  • 多波長DIALによるSO2測定精度の理論検討
  • タ ハチョウ DIAL ニヨル SO2 ソクテイ セイド ノ リロン ケントウ

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This paper presents two multiwavelength methods to improve the accuracy of a DIAL system for measuring SO2 in the lower atmosphere: a dual-DIAL method using three or four wavelengths, and a curvefitting method using five wavelengths. By the selection of appropriate wavelengths, these methods can eliminate the effects of ozone and aerosols. Since there is no significant difference in accuracy between the four wavelength dual-DIAL and curvefit methods, the former is advantageous for SO2 detection in view of the measurement and data processing speeds.

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