中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Nn analysis of sensitivity of the parameters on carbon dioxide retrieval using high-resolution solar absorption spectra

文献类型:期刊论文

Shan chang-gong1; Liu cheng2; Wang wei3; Yang wei3; Sun you-wen3; Liu wen-qing3; Tian yuan3
SourceSpectroscopy and spectral analysis
2017-07-01
Volume37Issue:7Pages:1997-2003
KeywordA model parameter Fourier transform infrared spectroscopy Analysis of sensitivity Carbon dioxide
English AbstractSolar absorption spectra collected with a high-resolution fourier transform spectrometer is able to measure the column abundance of co2 accurately. in the paper, the influence of a model parameters in the forward model on the retrieval of co2 is analyzed, also the impact of a model parameters on retrieval results under different solar zenith angle and the reasons are discussed. four model parameters, such as continuum tilt value, internal field of view, zero-level offset and doppler shift are modified in the forward model and how the results change with the disturbance is studied, based on the spectra collected in two typical days. the results show that, the relative deviations of column-averaged dry air mole fraction of co2 (xco2) caused by the disturbance of different a model parameters are different. also, the relative deviations due to the disturbance of the same parameters corresponding to different time for collecting spectra are different. continuum tilt value has the biggest influence on the retrieval, and the change of this value resulted in the relative deviations of xco2 between 0. 1%similar to 0. 2%. the changes of other three parameters internal field of view, zero-level offset and doppler shift have small impact on the retrieval, which leads to the relative deviations of xco2 in the range of -0. 045%similar to-0. 02%, -0. 045%similar to 0. 015% and -0. 03%similar to 0. 04%, respectively. finally, the reasons of the deviations are explained based on the average kernels of co2. the results provide a basis for how to set the parameters in the retrieval algorithms and improve the measurement accuracy of atmospheric co2.
WOS HeadingsScience & technology ; Technology
WOS SubjectSpectroscopy
WOS Subject ExtendedSpectroscopy
WOS Keyword PlusColumn observing network ; Co2 ; Calibration
Indexed TypeSci
Language英语
WOS IDWos:000405648400002
Citation statistics
URIhttp://www.corc.org.cn/handle/1471x/1637536
Collection合肥物质科学研究院_中科院安徽光学精密机械研究所
Affiliation1.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230031, Peoples R China
3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
Recommended Citation
GB/T 7714
Shan Chang-gong,Liu Cheng,Wang Wei,et al. Nn analysis of sensitivity of the parameters on carbon dioxide retrieval using high-resolution solar absorption spectra[J]. Spectroscopy and spectral analysis,2017,37(7):1997-2003.
APA Shan Chang-gong.,Liu Cheng.,Wang Wei.,Yang Wei.,Sun You-wen.,...&Tian Yuan.(2017).Nn analysis of sensitivity of the parameters on carbon dioxide retrieval using high-resolution solar absorption spectra.Spectroscopy and spectral analysis,37(7),1997-2003.
MLA Shan Chang-gong,et al."Nn analysis of sensitivity of the parameters on carbon dioxide retrieval using high-resolution solar absorption spectra".Spectroscopy and spectral analysis 37.7(2017):1997-2003.

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