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Distributed Feedback Interband Cascade Laser Based Laser Heterodyne Radiometer for Column Density of HDO and CH4 Measurements at Dunhuang, Northwest of China

文献类型：期刊论文

作者Lu, Xingji3,4; Huang, Yinbo3,4; Wu, Pengfei3,4; Liu, Dandan2; Ma, Hongliang1; Wang, Guishi4; Cao, Zhensong3,4
刊名REMOTE SENSING
出版日期2022-03-01
卷号14
关键词laser heterodyne radiometer instrument line-shape retrieval algorithm HDO CH4
DOI10.3390/rs14061489
通讯作者Cao, Zhensong(zscao@aiofm.ac.cn)
英文摘要Remote sensing of HDO and CH4 could provide valuable information on environmental and climatological studies. In a recent contribution, we reported a 3.53 mu m distributed feedback (DFB) inter-band cascade laser (ICL)-based heterodyne radiometer. In the present work, we present the details of measurements and inversions of HDO and CH4 at Dunhuang, Northwest of China. The instrument line shape (ILS) of laser heterodyne radiometer (LHR) is discussed firstly, and the spectral resolution is about 0.004 cm(-1) theoretically according to the ILS. Furthermore, the retrieval algorithm, optimal estimation method (OEM), combined with LBLRTM (Line-by-line Radiative Transfer Model) for retrieving the densities of atmospheric HDO and CH4 are investigated. The HDO densities were retrieved to be less than 1.0 ppmv, while the CH4 densities were around 1.79 ppmv from 20 to 24 July 2018. The correlation coefficient of water vapor densities retrieved by LHR and EM27/SUN is around 0.6, the potential reasons for the differences were discussed. Finally, in order to better understand the retrieval procedure, the Jacobian value and the Averaging Kernels are also discussed.
WOS关键词INDUCED THERMOELASTIC SPECTROSCOPY ; MIDINFRARED LASER ; HIGH-RESOLUTION ; OZONE PROFILES ; DIODE-LASER ; SPECTROMETER ; RETRIEVALS ; TES ; O-3
资助项目Youth Innovation Promotion Association of Chinese Academy of Sciences[2015264] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010104]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者MDPI
WOS记录号WOS:000774236400001
资助机构Youth Innovation Promotion Association of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/128237]  
专题中国科学院合肥物质科学研究院
通讯作者Cao, Zhensong
作者单位1.Anqing Normal Univ, Sch Elect Engn & Intelligent Mfg, Anqing 246011, Peoples R China
2.West Anhui Univ, Coll Elect & Optoelect Engn, Luan 237012, Peoples R China
3.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China
4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Xingji,Huang, Yinbo,Wu, Pengfei,et al. Distributed Feedback Interband Cascade Laser Based Laser Heterodyne Radiometer for Column Density of HDO and CH4 Measurements at Dunhuang, Northwest of China[J]. REMOTE SENSING,2022,14.
APA Lu, Xingji.,Huang, Yinbo.,Wu, Pengfei.,Liu, Dandan.,Ma, Hongliang.,...&Cao, Zhensong.(2022).Distributed Feedback Interband Cascade Laser Based Laser Heterodyne Radiometer for Column Density of HDO and CH4 Measurements at Dunhuang, Northwest of China.REMOTE SENSING,14.
MLA Lu, Xingji,et al."Distributed Feedback Interband Cascade Laser Based Laser Heterodyne Radiometer for Column Density of HDO and CH4 Measurements at Dunhuang, Northwest of China".REMOTE SENSING 14(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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