Estimation of differential absorption lidar measurement error for NO2 profiling in the lower troposphere

被引：8
作者：
Cao, NW
Fujii, T
Fukuchi, T
Goto, N
Nemoto, K
Takeuchi, N
机构：
[1] Cent Res Inst Elect Power Ind, Dept Phys Elect, Komae Res Lab, Tokyo 2018511, Japan
[2] Chiba Univ, Ctr Environm Remote Sensing, Inage Ku, Chiba 2638522, Japan
来源：
OPTICAL ENGINEERING | 2002年 / 41卷 / 01期
关键词：
lidar; differential absorption; aerosols; backscattering; extinction;
D O I：
10.1117/1.1419191
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Measurement error for NO2 profiling in the lower troposphere, including the effects of aerosol backscatter, molecular backscatter, and extinction due to inhomogeneous aerosol distribution, is estimated for vertical NO2 concentration profiles measured by differential absorption lidar (DIAL). Vertical NO2 concentration profiles of 0 to 40 ppb and null profiles are obtained for an altitude of 900 to 2250 m with a 150-m range resolution. The deviation of the null profiles from zero, which provides a measure of how precisely the laser beams were aligned, was <2.0 ppb. The mean statistical error, systematic error from aerosol, and absorption cross section error were 3.4, <3.0, and <1.2 ppb, respectively. (C) 2002 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页码：218 / 224
页数：7
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