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

doi:10.1016/j.saa.2020.118071

	Laser heterodyne spectroradiometer assisted by self-calibrated wavelength modulation spectroscopy for atmospheric CO2 column absorption measurements
	Deng, Hao 2,3; Li, Mingxing 2,3; He, Yabai 2; Xu, Zhenyu 2; Yao, Lu 2; Chen, Bing 2; Yang, Chenguang 2; Kan, Ruifeng 1,2
刊名	SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
	2020-04-05
卷号	230
关键词	Laser heterodyne spectroradiometer Wavelength modulation spectroscopy Carbon dioxide Column concentration Optical sensing
ISSN号	1386-1425
DOI	10.1016/j.saa.2020.118071
通讯作者	Yang, Chenguang(cgyang@aiofm.ac.cn) ; Kan, Ruifeng(rfkan@ciomp.ac.cn)
英文摘要	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.
资助项目	National Key Research and Development Program of China[2016YFC1400604-02] ; National Key Research and Development Program of China[2016YFC0201103] ; National Key Research and Development Program of China[2016YFC1400604] ; National Key Research and Development Program of China[2016YFC0302302] ; Equipment Research and Development Program of Chinese Academy of Sciences[YJKYYQ20170062]
WOS关键词	TUNABLE DIODE-LASER ; NITROUS-OXIDE ; COOLING RATES ; RADIOMETER ; METHANE ; PROFILES ; FLUXES ; OZONE ; CH4
WOS研究方向	Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000520043200034
资助机构	National Key Research and Development Program of China ; Equipment Research and Development Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103473]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Chenguang; Kan, Ruifeng
作者单位	1.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230022, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Deng, Hao,Li, Mingxing,He, Yabai,et al. 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.
APA	Deng, Hao.,Li, Mingxing.,He, Yabai.,Xu, Zhenyu.,Yao, Lu.,...&Kan, Ruifeng.(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.
MLA	Deng, Hao,et al."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).