Acta Optica Sinica, Volume. 39, Issue 2, 0201001(2019)

Retrieve of Water Vapor Column Density in Atmosphere Based on Near Infrared Differential Optical Absorption Spectroscopy

Ruwen Wang1,2、*, Pinhua Xie1,2,3、*, Jin Xu1、*, and Ang Li1
Author Affiliations
  • 1 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
  • 2 University of Science and Technology of China, Hefei, Anhui 230026, China
  • 3 CAS Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
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    Figures & Tables(11)
    Schematic of Acquisition of H2O cross section. (a) Water vapor absorption cross-section in Hitran database; (b) water vapor absorption cross-section with Viogt linetype change; (c) instrument function of spectrometer; (d) effective absorption cross-section of H2O at wavelength band 1590~1620 nm
    Relationship curve between X(H2O) and L with water vaporr eaching saturated absorption, T=296 K and P=101.325 kPa
    Effect of temperature on water vapor absorption
    Instrument devices. (a) Systematic experimental device diagram; (b) distribution of indoor and outdoor devices
    Absorption cross-section curves of water vapor and CO2 under three different conditions
    Example of H2O retrieve by IR-DOAS
    Comparison of retrieval results between IR-DOAS and CE-318
    Linear correlation of observation data between IR-DOAS and CE-318
    Curves of S (H2O) and 1/sinα
    Distribution of S (H2O) in various azimuth directions
    • Table 1. Corresponding temperature and pressure at different altitudes

      View table

      Table 1. Corresponding temperature and pressure at different altitudes

      NumberAltitude /kmTemperature /KPressure /kPa
      10296101.325
      20.529395.4583
      3129089.8651
      41.528784.5456
      5228479.4793
      6327870.0865
      7427265.7397
      8526661.6056
      9626053.9941
      10725447.1465
      11824841.0316
      12924235.5701
      131023626.4053
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    Ruwen Wang, Pinhua Xie, Jin Xu, Ang Li. Retrieve of Water Vapor Column Density in Atmosphere Based on Near Infrared Differential Optical Absorption Spectroscopy[J]. Acta Optica Sinica, 2019, 39(2): 0201001

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Jul. 19, 2018

    Accepted: Oct. 8, 2018

    Published Online: May. 10, 2019

    The Author Email:

    DOI:10.3788/AOS201939.0201001

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