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地基CO2廓线探测差分吸收激光雷达

韩舸 龚威 马昕 相成志 梁艾琳 郑玉新

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地基CO2廓线探测差分吸收激光雷达

韩舸, 龚威, 马昕, 相成志, 梁艾琳, 郑玉新

A ground-based differential absorption lidar for atmospheric vertical CO2 profiling

Han Ge, Gong Wei, Ma Xin, Xiang Cheng-Zhi, Liang Ai-Lin, Zheng Yu-Xin
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  • 研制了一台利用气溶胶散射信号的CO2廓线探测差分吸收激光雷达. 系统利用染料激光器实现波长调制, 采用双光路气体吸收池, 结合Voigt拟合方法实现了脉冲红外激光的高精度定标. 针对输出激光带宽较宽的问题, 采取仿真实验评估了影响, 并设计了基于吸收池的订正因子获取方案. 进而, 开展了水平、垂直和连续观测实验, 通过与地面CO2分析仪测量值的对比, 证明了系统具备优越的精密性和精确性. 实验表明, 该样机能够俘获CO2浓度随高程和时间变化而产生的变化.
    A differential absorption lidar (CO2-VDIAL), which is designed for vertical CO2 profile retrieving by using aerosol-scattered signals, is demonstrated in this paper. To our knowledge, it is the first time that a dye laser has been utilized to realize the wavelength modulation for a CO2-DIAL/IPDA system. Such a design scheme greatly reduces both the threshold and the cost to develop a CO2-DIAL. However, two key problems emerge in this system, i.e., wavelength stability and broad bandwidth. By adopting the CO2-VDIAL, a dual-path gas cell, and the Voigt fitting procedure, the accurate wavelength calibration of infrared pulse laser is achieved. Experimental results show that the error of wavelength calibration can be suppressed under 0.1 pm. And a wavelength stability of ~2 pm is then achieved. For tackling the error introduced by using the laser of a broad bandwidth, simulated experiments are carried out to estimate its influence. On that basis, we propose a method to calculate the correction coefficient and demonstrate the process via experiments by using a gas cell. It is demonstrated that the bandwidth of the output infrared laser is around 600-700 MHz. Hence, the broad bandwidth correction is an indispensable step for this CO2-VDIAL. Finally, horizontal, vertical and continuous detections are carried out to verify the precision and the accuracy of our CO2-VDIAL. The slope method is used to retrieve the XCO2 in the above experiments. In the horizontal detections, an R2 of 0.999 is achieved, suggesting that the precision of the system is excellent. By comparison with the in-situ measurements, a difference is found to be lower than 4 ppm. Consequently, it is concluded that the CO2-VDIAL is capable of providing retrievals with the high precision and accuracy. Moreover, the XCO2 decreases with increasing altitude according to the vertical detection experiment in the midnight on June 19m th 2015 at an urban site, demonstrating that the CO2-VDIAL is capable of providing retrievals of ranged-resolved. Finally, temporal characteristic of XCO2 can be also revealed by the CO2-VDIAL in light of continuous detections. The CO2-VDIAL has already been assembled in a container which is due to be transported to Huainai for further verifications in late 2015. Once we finish the performance optimization, the CO2-VDIAL will be installed in Tibet for long period observation.
      通信作者: 龚威, weigongwhu@gmail.com
    • 基金项目: 国家自然科学(批准号: 41127901, 41201362)资助的课题.
      Corresponding author: Gong Wei, weigongwhu@gmail.com
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 41127901, 41201362).
    [1]

    Stocker T F, Qin D, Plattner G K, Tignor M, Allen S K, Boschung J, Nauels A, Xia Y, Bex V, Midgley P M 2013 IPCC: Climate Change: The Physical Science Basis

    [2]

    Bousquet P, Peylin P, Ciais P, Ramonet M, Monfray P 1999 J. Geophys. Res. 104 26161

    [3]

    Gurney K R, Law R M, Denning A S, Rayner P J, Baker D, Bousquet P, Bruhwiler L, Chen Y H, Ciais P, Fan S, Fung I Y, Gloor M, Heimann M, Higuchi K, John J, Maki T, Maksyutov S, Masarie K, Peylin P, Prather M, Pak B C, Randerson J, Sarmiento J, Taguchi S, Takahashi T, Yuen C W 2002 Nature 415 626

    [4]

    Stephens B B, Gurney K R, Tans P P, et al. 2007 Science 316 1732

    [5]

    Gatti L V, Miller J B, D'Amelio M T S, Martinewski A, Basso L S, Gloor M E, Wofsy S, Tans P 2010 Tellus B 62 581

    [6]

    Belmonte A 2004 Opt. Express 12 1249

    [7]

    Ehret G, Kiemle C, Wirth M, Amediek A, Fix A, Houweling S 2008 Appl. Phys. B: Lasers Opt. 90 593

    [8]

    Gibert F, Flamant P H, Bruneau D, Loth C 2006 Appl. Opt. 45 4448

    [9]

    Ismail S, Koch G, Abedin N, Refaat T, Rubio M, Davis K, Miller C, Vay S, Singh U 2006 NASA Earth Science Technology Conference USA, June 27-29, 2006

    [10]

    Amediek A, Fix A, Wirth M, Ehret G 2008 Appl. Phys. B: Lasers Opt. 92 295

    [11]

    Sakaizawa D, Nagasawa C, Nagai T, Abo M, Shibata Y, Nakazato M, Sakai T 2009 Appl. Opt. 48 748

    [12]

    Kameyama S, Imaki M, Hirano Y, Ueno S, Kawakami S, Sakaizawa D, Nakajima M 2009 Opt. Lett. 34 1513

    [13]

    Abshire J B, Riris H, Allan G R, Weaver C J, Mao J, Sun X, Hasselbrack W E, Kawa S R, Biraud S 2010 Tellus B 62 770

    [14]

    Liu H, Shu R, Hong G L, Zheng L, Ge Y, Hu Y H 2014 Acta Phys. Sin. 63 104214 (in Chinese) [刘豪, 舒嵘, 洪光烈, 郑龙, 葛烨, 胡以华 2014 物理学报 63 104214]

    [15]

    Lu D R, Pan W L 2012 International Radiation Symposium Berlin, Germany, August 6-10, 2012 p244

    [16]

    Gong W, Han G, Ma X, Lin H 2013 Opt. Commun. 305 180

    [17]

    Rothman L S, Gordon I E, Babikov Y, Barbe A, Chris B D, Bernath P F, Birk M, Bizzocchi L, Boudon V, Brown L R, Campargue A,Chance K, Cohen E A, Coudert L H, Devi V M, Drouin B J, Fayt A, Flaud J M, Gamache R R, Harrison J J, Hartmann J M, Hill C, Hodges J T, Jacquemart D, Jolly A, Lamouroux J, Le R R J, Li G, Long D A, Lyulin O M, Mackie C J, Massie S T, Mikhailenko S, Mller H S P, Naumenko O V, Nikitin A V, Orphal J, Perevalov V, Perrin A, Polovtseva E R, Richard C, Smith M A H, Starikova E, Sung K, Tashkun S, Tennyson J, Toon G C, Tyuterev V L G, Wagner G 2013 J. Quant. Spectrosc. Ra. 130 4

    [18]

    Zhu X F, Lin Z X, Liu L M, Shao J Y, Gong W 2014 Acta Phys. Sin. 63 174203 (in Chinese) [朱湘飞, 林兆祥, 刘林美, 邵君宜, 龚威 2014 物理学报 63 174203]

    [19]

    Han G, Gong W, Lin H, Ma X, Xiang C Z 2014 Appl. Phys. B: Lasers Opt. 117 1041

    [20]

    Ma X, Gong W, Ma Y Y, Fu D W, Han G, Xiang C Z 2015 Acta Phys. Sin. 64 154251 (in Chinese) [马昕, 龚威, 马盈盈, 傅东伟, 韩舸,相成志 2015 物理学报 64 154251]

    [21]

    Han G, Gong W, Lin H, Ma X, Xiang C Z 2014 IEEE Trans. Geosci. Remote. 53 3221

  • [1]

    Stocker T F, Qin D, Plattner G K, Tignor M, Allen S K, Boschung J, Nauels A, Xia Y, Bex V, Midgley P M 2013 IPCC: Climate Change: The Physical Science Basis

    [2]

    Bousquet P, Peylin P, Ciais P, Ramonet M, Monfray P 1999 J. Geophys. Res. 104 26161

    [3]

    Gurney K R, Law R M, Denning A S, Rayner P J, Baker D, Bousquet P, Bruhwiler L, Chen Y H, Ciais P, Fan S, Fung I Y, Gloor M, Heimann M, Higuchi K, John J, Maki T, Maksyutov S, Masarie K, Peylin P, Prather M, Pak B C, Randerson J, Sarmiento J, Taguchi S, Takahashi T, Yuen C W 2002 Nature 415 626

    [4]

    Stephens B B, Gurney K R, Tans P P, et al. 2007 Science 316 1732

    [5]

    Gatti L V, Miller J B, D'Amelio M T S, Martinewski A, Basso L S, Gloor M E, Wofsy S, Tans P 2010 Tellus B 62 581

    [6]

    Belmonte A 2004 Opt. Express 12 1249

    [7]

    Ehret G, Kiemle C, Wirth M, Amediek A, Fix A, Houweling S 2008 Appl. Phys. B: Lasers Opt. 90 593

    [8]

    Gibert F, Flamant P H, Bruneau D, Loth C 2006 Appl. Opt. 45 4448

    [9]

    Ismail S, Koch G, Abedin N, Refaat T, Rubio M, Davis K, Miller C, Vay S, Singh U 2006 NASA Earth Science Technology Conference USA, June 27-29, 2006

    [10]

    Amediek A, Fix A, Wirth M, Ehret G 2008 Appl. Phys. B: Lasers Opt. 92 295

    [11]

    Sakaizawa D, Nagasawa C, Nagai T, Abo M, Shibata Y, Nakazato M, Sakai T 2009 Appl. Opt. 48 748

    [12]

    Kameyama S, Imaki M, Hirano Y, Ueno S, Kawakami S, Sakaizawa D, Nakajima M 2009 Opt. Lett. 34 1513

    [13]

    Abshire J B, Riris H, Allan G R, Weaver C J, Mao J, Sun X, Hasselbrack W E, Kawa S R, Biraud S 2010 Tellus B 62 770

    [14]

    Liu H, Shu R, Hong G L, Zheng L, Ge Y, Hu Y H 2014 Acta Phys. Sin. 63 104214 (in Chinese) [刘豪, 舒嵘, 洪光烈, 郑龙, 葛烨, 胡以华 2014 物理学报 63 104214]

    [15]

    Lu D R, Pan W L 2012 International Radiation Symposium Berlin, Germany, August 6-10, 2012 p244

    [16]

    Gong W, Han G, Ma X, Lin H 2013 Opt. Commun. 305 180

    [17]

    Rothman L S, Gordon I E, Babikov Y, Barbe A, Chris B D, Bernath P F, Birk M, Bizzocchi L, Boudon V, Brown L R, Campargue A,Chance K, Cohen E A, Coudert L H, Devi V M, Drouin B J, Fayt A, Flaud J M, Gamache R R, Harrison J J, Hartmann J M, Hill C, Hodges J T, Jacquemart D, Jolly A, Lamouroux J, Le R R J, Li G, Long D A, Lyulin O M, Mackie C J, Massie S T, Mikhailenko S, Mller H S P, Naumenko O V, Nikitin A V, Orphal J, Perevalov V, Perrin A, Polovtseva E R, Richard C, Smith M A H, Starikova E, Sung K, Tashkun S, Tennyson J, Toon G C, Tyuterev V L G, Wagner G 2013 J. Quant. Spectrosc. Ra. 130 4

    [18]

    Zhu X F, Lin Z X, Liu L M, Shao J Y, Gong W 2014 Acta Phys. Sin. 63 174203 (in Chinese) [朱湘飞, 林兆祥, 刘林美, 邵君宜, 龚威 2014 物理学报 63 174203]

    [19]

    Han G, Gong W, Lin H, Ma X, Xiang C Z 2014 Appl. Phys. B: Lasers Opt. 117 1041

    [20]

    Ma X, Gong W, Ma Y Y, Fu D W, Han G, Xiang C Z 2015 Acta Phys. Sin. 64 154251 (in Chinese) [马昕, 龚威, 马盈盈, 傅东伟, 韩舸,相成志 2015 物理学报 64 154251]

    [21]

    Han G, Gong W, Lin H, Ma X, Xiang C Z 2014 IEEE Trans. Geosci. Remote. 53 3221

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出版历程
  • 收稿日期:  2015-07-24
  • 修回日期:  2015-08-13
  • 刊出日期:  2015-12-05

地基CO2廓线探测差分吸收激光雷达

  • 1. 武汉大学国际软件学院, 武汉 430079;
  • 2. 武汉大学, 测绘遥感信息工程国家重点实验室, 武汉 430079;
  • 3. 地球空间信息技术协同创新中心, 武汉 430079
  • 通信作者: 龚威, weigongwhu@gmail.com
    基金项目: 国家自然科学(批准号: 41127901, 41201362)资助的课题.

摘要: 研制了一台利用气溶胶散射信号的CO2廓线探测差分吸收激光雷达. 系统利用染料激光器实现波长调制, 采用双光路气体吸收池, 结合Voigt拟合方法实现了脉冲红外激光的高精度定标. 针对输出激光带宽较宽的问题, 采取仿真实验评估了影响, 并设计了基于吸收池的订正因子获取方案. 进而, 开展了水平、垂直和连续观测实验, 通过与地面CO2分析仪测量值的对比, 证明了系统具备优越的精密性和精确性. 实验表明, 该样机能够俘获CO2浓度随高程和时间变化而产生的变化.

English Abstract

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