Laser heterodyne spectroradiometer assisted by self-calibrated wavelength modulation spectroscopy for atmospheric CO2 column absorption measurements

doi:10.1016/j.saa.2020.118071

CIOMP OpenIR

	Laser heterodyne spectroradiometer assisted by self-calibrated wavelength modulation spectroscopy for atmospheric CO2 column absorption measurements
	H. Deng,M. X. Li,Y. B. He,Z. Y. Xu,L. Yao,B. Chen,C. G. Yang and R. F. Kan
	2020
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	230 页码:6
摘要	We have developed a laser heterodyne spectroradiometer in combination with self-calibrated wavelength modulation spectroscopy based on a software-based lock-in amplifier to observe the atmospheric carbon dioxide (CO2) column absorption near wavelength 1.57 mu m in solar occultation mode. This combination facilitates miniaturization of laser heterodyne radiometer. Combined with our developed retrieval algorithm, the atmospheric carbon dioxide column concentration is measured to be 413.7 = 1.9 ppm, in agreement with GOSAT satellite observation results. This system offers high spectral signal-to-noise ratio of similar to 333 for the zeroth harmonic (Of) normalized second harmonic (R2f) signal of CO2 transition (R22e), with a measurement averaging time of 8 s, which can be further improved by increasing averaging time in accordance to the Allan deviation analysis for the noise fluctuation. This demonstrates the feasibility of the system for atmospheric investigation and the potential of ground-based, airborne and spaceborne observations for the variation of the global greenhouse gases. (C) 2020 Elsevier B.V. All rights reserved.
DOI	10.1016/j.saa.2020.118071
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64643
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Deng,M. X. Li,Y. B. He,Z. Y. Xu,L. Yao,B. Chen,C. G. Yang and R. F. Kan. Laser heterodyne spectroradiometer assisted by self-calibrated wavelength modulation spectroscopy for atmospheric CO2 column absorption measurements[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2020,230:6.
APA	H. Deng,M. X. Li,Y. B. He,Z. Y. Xu,L. Yao,B. Chen,C. G. Yang and R. F. Kan.(2020).Laser heterodyne spectroradiometer assisted by self-calibrated wavelength modulation spectroscopy for atmospheric CO2 column absorption measurements.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,230,6.
MLA	H. Deng,M. X. Li,Y. B. He,Z. Y. Xu,L. Yao,B. Chen,C. G. Yang and R. F. Kan."Laser heterodyne spectroradiometer assisted by self-calibrated wavelength modulation spectroscopy for atmospheric CO2 column absorption measurements".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 230(2020):6.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Laser heterodyne spe（1016KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载