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Optical Engineering

Error analysis of SO2 measurement by multiwavelength differential absorption lidar
Author(s): Tetsuo Fukuchi; Naohiko Goto; Takashi Fujii; Koshichi Nemoto
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Paper Abstract

A multiwavelength method to improve the accuracy of a differential absorption lidar (DIAL) for measuring SO2 in the lower atmosphere is presented. A dual-DIAL method consisting of a combination of two DIAL pairs (three or four measurement wavelengths) is proposed, and the measurement error is estimated from the lidar equation. By the selection of appropriate measurement wavelengths, the effects of ozone and aerosols can be suppressed. In principle, the accuracy can be improved to below 1 ppb for 300-m range resolution.

Paper Details

Date Published: 1 January 1999
PDF: 5 pages
Opt. Eng. 38(1) doi: 10.1117/1.602068
Published in: Optical Engineering Volume 38, Issue 1
Show Author Affiliations
Tetsuo Fukuchi, Central Research Inst. Electric Power Industry (Japan)
Naohiko Goto, Central Research Institute of Electric Power Industry (Japan)
Takashi Fujii, Central Research Inst. of Electric Power Industry (Japan)
Koshichi Nemoto, Electric Power Industry (Japan)


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