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Atmospheric and Oceanic Optics

, Volume 28, Issue 2, pp 121–125 | Cite as

Comparison of ground-based FTIR and radio sounding measurements of water vapor total content

  • A. O. SemenovEmail author
  • Ya. A. Virolainen
  • Yu. M. Timofeyev
  • A. V. Poberovskii
Spectroscopy of Ambient Medium

Abstract

We compared two datasets of the total content of atmospheric water vapor received near St. Petersburg in 2009–2012 from ground-based Fourier transform spectroscopy measurements at the Peterhof station and from radio sounding at Voyeykovo station. Despite a good correlation of daily measurements in Peterhof and Voyeykovo, the standard mismatch is significant, 20% or more, for most subsets taken for the comparison. The high mismatch is mainly due to the natural spatial variability of the total content of water vapor, accounting for the 50-km distance between Peterhof and Voyeykovo. This variability needs to be considered when validating the satellite measurements of water vapor content by ground-based measurements.

Keywords

water vapor Fourier spectrometry radio sounding 

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • A. O. Semenov
    • 1
    Email author
  • Ya. A. Virolainen
    • 1
  • Yu. M. Timofeyev
    • 1
  • A. V. Poberovskii
    • 1
  1. 1.Saint Petersburg State UniversitySt.-PetersburgRussia

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