Spectroscopy and Spectral Analysis, Volume. 32, Issue 9, 2336(2012)

MAX-DOAS Measurements of NO2 Column Densities and Vertical Distribution at Ny-Alesund, Arctic During Summer

LUO Yu-han1,2、*, SUN Li-guang1, LIU Wen-qing2, XIE Pin-hua2, SI Fu-qi2, and ZHOU Hai-jin2
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  • 1[in Chinese]
  • 2[in Chinese]
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    The multi-axis differential optical absorption spectroscopy (MAX-DOAS), one of the remote sensing techniques for trace gases measurements, is sensitive to the lower atmosphere by eliminating the influence of stratosphere retrieved from zenith-sky spectroscopy. Ground-based MAX-DOAS measurements were carried out to observe NO2 at Ny-lesund, Arctic from 5th Jul to 1st Aug 2011. The differential slant column densities (DSCDs) of NO2 at four off-axis angles showed typical pattern of tropospheric absorbers. Based on the assumption that NO2 was well mixed in 0~1 km of the troposphere, the mean mixing ratio of NO2 during the measurement period was 1.023E11 molec·cm-3. The fluctuation of NO2 might be related to the fossil fuel combustions and the photochemical reactions. The vertical distribution of NO2 at 0~3 km showed that NO2 was mainly originated from boundary layer of sea surface.

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    LUO Yu-han, SUN Li-guang, LIU Wen-qing, XIE Pin-hua, SI Fu-qi, ZHOU Hai-jin. MAX-DOAS Measurements of NO2 Column Densities and Vertical Distribution at Ny-Alesund, Arctic During Summer[J]. Spectroscopy and Spectral Analysis, 2012, 32(9): 2336

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    Paper Information

    Received: Mar. 16, 2012

    Accepted: --

    Published Online: Sep. 26, 2012

    The Author Email: Yu-han LUO (yuhanluo@mail.ustc.edu.cn)

    DOI:10.3964/j.issn.1000-0593(2012)09-2336-05

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