Journal cover Journal topic
Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

Journal metrics

  • IF value: 3.089 IF 3.089
  • IF 5-year<br/> value: 3.700 IF 5-year
    3.700
  • CiteScore<br/> value: 3.59 CiteScore
    3.59
  • SNIP value: 1.273 SNIP 1.273
  • SJR value: 2.026 SJR 2.026
  • IPP value: 3.082 IPP 3.082
  • h5-index value: 45 h5-index 45
https://doi.org/10.5194/amt-2017-135
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
29 May 2017
Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Atmospheric Measurement Techniques (AMT).
Quality assessment of integrated water vapour measurements at St. Petersburg site, Russia: FTIR vs. MW and GPS techniques
Yana A. Virolainen1, Yury M. Timofeyev1, Vladimir S. Kostsov1, Dmitry V. Ionov1, Vladislav V. Kalinnikov2, Maria V. Makarova1, Anatoly V. Poberovsky1, Nikita A. Zaitsev1, Hamud H. Imhasin1, Alexander V. Polyakov1, Matthias Schneider3, Frank Hase3, Sabine Barthlott3, and Thomas Blumenstock3 1Atmospheric Physics Department, St. Petersburg State University, Saint Petersburg, 199034, Russia
2Kazan (Volga Region) Federal University, 420008, Kazan, Russia
3Institute of Meteorology and Climate Research (IMK -ASF), Karlsruhe Institute of Technology, Karlsruhe, Germany
Abstract. The cross-comparison of different techniques for atmospheric integrated water vapour (IWV) measurements is the essential part of their quality assessment protocol. We inter-compare the synchronised data sets of IWV values measured by Fourier-transform infrared spectrometer Bruker 125 HR (FTIR), microwave radiometer RPG-HATPRO (MW) and global navigation satellite system receiver Novatel ProPak-V3 (GPS) at St. Petersburg site between August 2014 and October 2016. Generally, all three techniques agree well with each other and therefore are suitable for monitoring IWV values at St. Petersburg site. We show that GPS and MW data quality depends on the atmospheric conditions; in dry atmosphere (IWV smaller than 6 mm), these techniques are less reliable at St. Petersburg site than the FTIR method. We evaluate the upper bound of statistical measurement errors for clear-sky conditions as 0.33 ± 0.03 mm (2.0 ± 0.3 %), 0.54 ± 0.03 mm (4.5 ± 0.3 %), and 0.76 ± 0.04 mm (6.3 ± 0.7 %) for FTIR, GPS and MW methods, respectively. We conclude that accurate spatial and temporal matching of different IWV measurements is necessary for achieving the better agreement between various methods for IWV monitoring.

Citation: Virolainen, Y. A., Timofeyev, Y. M., Kostsov, V. S., Ionov, D. V., Kalinnikov, V. V., Makarova, M. V., Poberovsky, A. V., Zaitsev, N. A., Imhasin, H. H., Polyakov, A. V., Schneider, M., Hase, F., Barthlott, S., and Blumenstock, T.: Quality assessment of integrated water vapour measurements at St. Petersburg site, Russia: FTIR vs. MW and GPS techniques, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2017-135, in review, 2017.
Yana A. Virolainen et al.
Yana A. Virolainen et al.
Yana A. Virolainen et al.

Viewed

Total article views: 398 (including HTML, PDF, and XML)

HTML PDF XML Total BibTeX EndNote
310 70 18 398 8 10

Views and downloads (calculated since 29 May 2017)

Cumulative views and downloads (calculated since 29 May 2017)

Viewed (geographical distribution)

Total article views: 398 (including HTML, PDF, and XML)

Thereof 397 with geography defined and 1 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 23 Sep 2017
Publications Copernicus
Download
Short summary
Water vapour is one of the most important gases in the Earth’s atmosphere, which plays a unique role in climate and weather forming. Regular comparison of different systems for monitoring the atmospheric integrated water vapour (IWV) is the part of their testing and validation protocol. We compare coincident measurements of IWV by different techniques over Saint Petersburg (Russia), assess their quality in various atmospheric conditions, and give recommendation for data users.
Water vapour is one of the most important gases in the Earth’s atmosphere, which plays a...
Share