Atmospheric CO<sub>2</sub> column concentration retrieval based on high resolution laser heterodyne spectra and evaluation method of system measuring error

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Abstract

In this paper, a near-infrared laser heterodyne spectrometer developed by the laboratory is used to investigate the inversion of greenhouse gas column concentration and approximately evaluate the system measurement errors based on the optimal estimation algorithm. Firstly, the spectral database and the calculation results from the reference forward model are compared with the ground-based FTIR results, thereby selecting the detection window, the corresponding laser and detector. Secondly, the optimal estimation concentration inversion algorithm based on the reference forward model is established, and the Levenberg-Marquardt (LM) iterative method is adopted to realize the inversion of the concentration and vertical distribution profile of atmospheric CO ₂column in the whole layer, and the long-term observation comparative experiment is carried out to verify the feasibility of this algorithm. Finally, by simulating the selected detection window spectrum in different white noise, the approximate corresponding relationship between the system signal-noise-ratio (SNR) and CO ₂column concentration measuring error is eventually obtained. This research is an indispensable theoretical calculation part of the detection system and will conduce to improving the application of laser heterodyne technology in atmospheric observations.

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Corresponding author:Wang Gui-Shi,gswang@aiofm.ac.cn

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[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]

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状态向量	先验值	定义
x(CO₂)	1	先验廓线的比例因子 (ECMWF) 45层.
a	a₀	基线中a₀、b₀和c₀的多项式系数由对预处理的LHR信号与模型结果(去除吸收部分后)的比值进行二阶多项式拟合得到.
b	b₀
c	c₀

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[5]
[6]
[7]
[8]
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[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]

[1]	Xiong Feng, Peng Zhi-Min, Wang Zhen, Ding Yan-Jun, Lü Jun-Fu, Du Yan-Jun.Accurate measurement of trace H₂S concentration based on cavity ring-down absorption spectroscopy under CO₂/CO disturbance. Acta Physica Sinica, 2023, 72(4): 043302.doi:10.7498/aps.72.20221851
[2]	Li Yue, Li Jun, Xue Zheng-Yue, Wang Jing-Jing, Wang Gui-Shi, Gao Xiao-Ming, Tan Tu.Research on application of local oscillator power locking method to laser heterodyne radiometer. Acta Physica Sinica, 2023, 72(9): 093201.doi:10.7498/aps.72.20230261
[3]	Li Jun, Xue Zheng-Yue, Liu Xiao-Hai, Wang Jing-Jing, Wang Gui-Shi, Liu Kun, Gao Xiao-Ming, Tan Tu.Simulation of wind field detection by laser heterodyne spectrometer. Acta Physica Sinica, 2022, 71(7): 074204.doi:10.7498/aps.71.20211252
[4]	Wang Chong, Dang Wen-Bin, Zhu Bing-Li, Yang Kai, Yang Jia-Hao, Han Jiang-Hao.Method of compensating for time measurement error of photomultiplier tube. Acta Physica Sinica, 2022, 71(22): 222901.doi:10.7498/aps.71.20221193
[5]	Xue Zheng-Yue, Li Jun, Liu Xiao-Hai, Wang Jing-Jing, Gao Xiao-Ming, Tan Tu.Measurement and profile inversion of atmospheric N₂O absorption spectrum based on laser heterodyne detection. Acta Physica Sinica, 2021, 70(21): 217801.doi:10.7498/aps.70.20210710
[6]	Lu Xing-Ji, Cao Zhen-Song, Tan Tu, Huang Yin-Bo, Gao Xiao-Ming, Rao Rui-Zhong.Instrument line shape function of laser heterodyne spectrometer. Acta Physica Sinica, 2019, 68(6): 064208.doi:10.7498/aps.68.20181620
[7]	Shao Jun-Yi, Lin Zhao-Xiang, Liu Lin-Mei, Gong Wei.Measurement of absorption spectrum around 1.572 μm. Acta Physica Sinica, 2017, 66(10): 104206.doi:10.7498/aps.66.104206
[8]	Liu Hao, Shu Rong, Hong Guang-Lie, Zheng Long, Ge Ye, Hu Yi-Hua.Continuous-wave modulation differential absorption lidar system for CO2 measurement. Acta Physica Sinica, 2014, 63(10): 104214.doi:10.7498/aps.63.104214
[9]	He Yong-Zhou.Study on cryogenic remanence measurement technology for chunk permanent magnet. Acta Physica Sinica, 2013, 62(21): 217502.doi:10.7498/aps.62.217502
[10]	Li Yan-Chao, Wang Chun-Hui, Gao Long, Cong Hai-Fang, Qu Yang.Second harmonic multi-beam laser heterodyne measurement for small angle based on oscillating mirror sinusoidal modulation. Acta Physica Sinica, 2012, 61(1): 010601.doi:10.7498/aps.61.010601
[11]	An Ying, Du Zhen-Hui, Liu Jing-Wang, Xu Ke-Xin.A method to compensate the tuned nonlinearity of DFB diode laser in the laser self-heterodyne coherent measuring system. Acta Physica Sinica, 2012, 61(3): 034207.doi:10.7498/aps.61.034207
[12]	Li Yan-Chao, Wang Chun-Hui, Gao Long, Cong Hai-Fang, Qu Yang.Multi-beam laser heterodyne measurement with ultra-precision for the glass thickness based on oscillating mirror sinusoidal modulation. Acta Physica Sinica, 2012, 61(4): 044207.doi:10.7498/aps.61.044207
[13]	Chen Lin-Hui, Rao Chang-Hui.Error analysis of correlating Shack-Hartmann wave-front sensor for a point source. Acta Physica Sinica, 2011, 60(9): 090701.doi:10.7498/aps.60.090701
[14]	Li Yan-Chao, Zhang Liang, Yang Yan-Ling, Gao Long, Xu Bo, Wang Chun-Hui.The method for multi-beam laser heterodyne high-precision measurement of the glass thickness. Acta Physica Sinica, 2009, 58(8): 5473-5478.doi:10.7498/aps.58.5473
[15]	Hong Guang-Lie, Zhang Yin-Chao, Zhao Yue-Feng, Shao Shi-Sheng, Tan Kun, Hu Huan-Ling.Raman lidar for profiling atmospheric CO2. Acta Physica Sinica, 2006, 55(2): 983-987.doi:10.7498/aps.55.983
[16]	Ding Chang-Lin, Wan Chong-Yi.Multifrequency dynamical model of pulsed CO2 lasers. Acta Physica Sinica, 2006, 55(3): 1165-1170.doi:10.7498/aps.55.1165
[17]	YU WEI, XU ZHI-ZHAN.HIGHER-ORDER HARMONICS EMISSION IN CO2-LASER IRRADIATED TARGETS. Acta Physica Sinica, 1987, 36(2): 224-229.doi:10.7498/aps.36.224
[18]	XIA SHENG-JIE, WANG CHUN-KUI, FU YU-SHOU, WU BAO-GEN, FANG HUI-YING, ZHOU GUANG-DI.THE PHENOMENA ON TARGET IRRADIATED BY INTENSE CO2 LASER. Acta Physica Sinica, 1982, 31(3): 397-403.doi:10.7498/aps.31.397
[19]	GAO ZHI, LIN LIE, SUN WEN-CHAO.A THEORETICAL MODEL FOR TRANSVERSE-DISCHARGE FLOW TYPE CO₂LASERS. Acta Physica Sinica, 1979, 28(6): 807-823.doi:10.7498/aps.28.807
[20]	FU EN-SHENG, WANG YU-MIN, CHENG ZHAO-GU, DOU AI-RONG.ELECTRO-OPTIC FREQUENCY SHIFT OF 10.6μm CO₂LASER LINE. Acta Physica Sinica, 1979, 28(5): 24-31.doi:10.7498/aps.28.24

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Vol. 69, Issue 14 - 2020-07-20

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