Measurement of atmospheric oxygen using long-path supercontinuum absorption spectroscopy

被引：22

作者：

Brown, David M. ^{[1
,2
]}

Brown, Andrea M. ^{[1
,2
]}

Edwards, Perry S. ^{[1
]}

Liu, Zhiwen ^{[1
]}

Philbrick, C. Russell ^{[1
,3
,4
]}

机构：

[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

[2] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[3] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

[4] MEAS, Raleigh, NC 27695 USA

来源：

JOURNAL OF APPLIED REMOTE SENSING | 2014年 / 8卷

关键词：

atmospheric species concentrations; supercontinuum laser; atmospheric differential absorption; differential absorption lidar; remote sensing; TOMOGRAPHY; INDEX; LIDAR; O3;

D O I：

10.1117/1.JRS.8.083557

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The concentration of atmospheric oxygen is measured over a 540-m path using supercontinuum absorption spectroscopy. The absorption data compared favorably with MODTRAN (TM) 5 simulations of the spectra after adjusting for the differences of index of refraction of air and matching the instrument spectral resolution, as described by the effective slit width. Good agreement with the expected atmospheric oxygen concentration is obtained using a previously developed multiwavelength maximum likelihood estimation inversion algorithm. This study demonstrates the use of the SAS technique for measuring concentrations of chemical species with fine absorption structure on long-atmospheric paths. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.

引用

页数：9

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