光谱学与光谱分析 |
|
|
|
|
|
Retrieval of NO2 Total Vertical Columns by Direct-Sun Differential Optical Absorption Spectroscopy |
WANG Yang, XIE Pin-hua*, LI Ang, XU Jin, ZENG Yi, SI Fu-qi, WU Feng-cheng |
Key Laboratory of Environmental Optical & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
|
|
Abstract An appropriate reference spectrum is essential for the direct-sun differential optical absorption spectroscopy (DS-DOAS). It depends on the real reference spectrum to retrieve the total vertical column density (VCD). The spectrum detected at the time with minimum sun zenith angle under the relative clear atmospheric condition in the measurement period was conventionally selected as the reference spectrum. Because there is still untracked NO2 absorption structure in the reference spectrum, the VCD retrieved based on the above spectrum is actually relative VCD, which results in larger error. To solve this problem, a new method was investigated. A convolution of extraterrestrial high-precision solar Fraunhofer spectrum and the instrumental function of the spectrometer was computed and chosen as the reference spectrum. The error induced by NO2 absorption structure in the reference spectrum was removed. Then the fitting error of slant column density (SCD) retrieved by this method was analyzed. The correlation between the absolute SCD and the differential slant column density (dSCD) was calculated. The result shows that the error of SCD retrieved by this new method is below 1.6×1016 molecules·cm-2 on March 7, 2011, while the error generated by the normal method is about 4.25×1016 molecules·cm-2. The new method decreased more than 62% error. In addition, the results throughout the day were compared to the troposphere VCD from MAX-DOAS and they are in good agreement. It indicates that the new method could effectively reduce the VCD error of the common way.
|
Received: 2011-07-24
Accepted: 2011-10-16
|
|
Corresponding Authors:
XIE Pin-hua
E-mail: phxie@aiofm.ac.cn
|
|
[1] Crutzen P J. Annual Review of Earth and Planetary Sciences, 1979, 7: 443. [2] ZHOU Bin, LIU Wen-qing, QI Feng, et al(周 斌,刘文清,齐 峰,等). Research of Environmental Sciences(环境科学研究), 2001,14(5):23. [3] XU Jin, XIE Pin-hua, SI Fu-qi, et al(徐 晋, 谢品华, 司福祺, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2010, 30(9): 2464. [4] Herman J, Cede A, Spinei E, et al. Journal of Geophysical Research, 2009, 114: D13307. [5] Xue Y Q, Niu J G, Liu W Q, et al. Japanese Journal of Applied Physics, 2000, 39: 622. [6] CHEN Mao-xing, ZHENG Yu-chen, CHENG Juan, et al(陈茂兴,郑玉臣,程 娟,等). The Journal of Light Scattering(光散射学报),2007, 19(2):142. [7] Platt U, Stutz J. Differential Optiacl Absorption Spectroscopy. Springer, Verlag, Heidelberg, 2008. [8] Hnninger G, von Friedeburg C, Platt U. Atmos. Chem. Phys., 2004, 4: 231. [9] Gruzdev A N. Observed Trends in Stratospheric NO<sub>2</sub>. 4th SPARC General Assembly 31 August—5 September2008, Bologna, Italy. [10] http://www.srrb.noaa.gov/highlights/sunrise/atmosrefr.gif. [11] SHI Peng, XIE Pin-hua, LI Ang, et al(石 鹏,谢品华,李 昂,等). Acta Optica Sinica(光学学报), 2010,30(12):3643. [12] Fay C, Roozendael Van, WinDOAS2.1 Software User Mannual. IASB/BIRA, 2001, 2. [13] ZHOU Bin, LIU Wen-qing, QI Feng, et al(周 斌,刘文清,齐 锋,等). Acta Optica Sinica(光学学报), 2002, 22(8): 857. [14] Chance I, Kurucz R L. Journal of Quantitative Spectroscopy & Radiative Transfer, 2010, 111: 1289. |
[1] |
XU Heng1, LIU Hao-ran1*, JI Xiang-guang2, LI Qi-hua1, LIU Guo-hua1, OU Jin-ping1, ZHU Peng-cheng1. Study on the Tropospheric Column Density of NO2 in Shanghai Based on MAX-DOAS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(09): 2720-2725. |
[2] |
SU Jin-tao1, ZHANG Cheng-xin2*, HU Qi-hou3, LIU Hao-ran4, LIU Jian-guo3. Analysis of Spatial and Temporal Change Trend of Xinjiang NO2 in 2007—2017 Based on Satellite Hyperspectral Remote Sensing[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(05): 1631-1638. |
[3] |
ZHAO Xiao-rong1,2, LI Yan-hong1,2*. Study on the Relationship Between Urban Traffic Flow and Tropospheric NO2 Vertical Column Density in Oasis on the North Slope of Tianshan Mountain[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(02): 345-353. |
[4] |
LIU Hao-ran1, HU Qi-hou2*, TAN Wei2, SU Wen-jing3, CHEN Yu-jia2, ZHU Yi-zhi2, LIU Jian-guo2. Study of the Urban NO2 Distribution and Emission Assessment Based on Mobile MAX-DOAS Observations[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(01): 11-19. |
[5] |
WU Sheng-yang1,2, HU Ren-zhi1,2*, XIE Pin-hua1,2, LI Zhi-yan1,2, LIU Xiao-yan3, LIN Chuan1,4, CHEN Hao1,2, WANG Feng-yang1,2, WANG Yi-hui1,5, JIN Hua-wei1,2. Real-Time Measurement of NOy (Total Reactive Nitrogen Oxide) by Cavity Ring Down Spectrometer (CRDS)[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(06): 1661-1667. |
[6] |
WANG Shi-xia, GAO Jin-jin. Study on the Influence of Pb Doping on High Pressure Structural Properties of Tin Dioxide Using Diamond Anvil Cell and Raman Spectra[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(02): 415-419. |
[7] |
YANG Lei1, 2, LI Ang1*, XIE Pin-hua1, 2, HU Zhao-kun1, 2, LIANG Shuai-xi1, 2, ZHANG Ying-hua1, 2, HUANG Ye-yuan1, 2. Telemetry Research of NO2 Concentration in the Night Based on LED and DOAS Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(05): 1398-1405. |
[8] |
XIANG Ya-jing1, WANG Shan-shan1,2, ZHOU Bin1,2,3*. Study of the Estimation of Atmospheric Mixing Layer Height Using Spectral Analysis Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(12): 3653-3658. |
[9] |
LING Liu-yi1, 3*, WEI Ying2, HUANG You-rui1, HU Ren-zhi3, XIE Pin-hua3*. Calibration Method of Broadband Cavity Enhanced Absorption Spectroscopy for Measuring Atmospheric NO2[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(03): 670-675. |
[10] |
MOU Fu-sheng1,2, LI Ang1, XIE Pin-hua1,3,4, WANG Yang5, ZHANG Jie1, XU Jin1, WU Feng-cheng1, CHEN Hao1. Study of Tropospheric NO2 VCD from August 2013 to July 2014 with Ground-Based MAX-DOAS in Hefei and Comparison with OMI Observation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(04): 1042-1047. |
[11] |
ZOU Jie-shu, WANG fei*, YAN Jian-hua, CEN Ke-fa . Simulation of Concentration Measurement of SO2, NO2 and Particles Simultaneously by Differential Optical Absorption Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(12): 3830-3835. |
[12] |
DUAN Jun1, QIN Min1*, LU Xue1, FANG Wu1, LING Liu-yi1,2, WANG Dan1, SHEN Lan-lan1, XIE Pin-hua1, 3, LIU Wen-qing1, 3. The Detection of Atmospheric HONO and NO2 with Fiber Coupling Long-Path Differential Optical Absorption Spectroscopy System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(07): 2001-2005. |
[13] |
MA Wen, LI Yan-hong*, WANG Pan-pan . Variation Characteristics of Tropospheric NO2 Vertical Column Densities over Large and Small Cities of Xinjiang in Summer [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(07): 2195-2199. |
[14] |
SHEN Lan-lan1, QIN Min1*, SUN Wei2, FANG Wu1, SUN Ye2, GAO Li-xiao3, XIE Pin-hua1, 4, DUAN Jun1, WANG Dan1, LU Xue1. Cruise Observation of SO2, NO2 and Benzene with Mobile Portable DOAS in the Industrial Park[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(06): 1936-1940. |
[15] |
WU Tao1, CHEN Wei-dong2, HE Xing-dao1 . Detection of Atmospheric HONO and NO2 by Incoherent Broadband Cavity Enhanced Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(11): 2985-2989. |
|
|
|
|