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Atmospheric and Oceanic Optics

, Volume 32, Issue 5, pp 551–554 | Cite as

Manifestation of Equatorial Processes in Water Vapor Variations over Europe

  • O. G. KhutorovaEmail author
  • V. E. KhutorovEmail author
  • G. M. TeptinEmail author
OPTICS OF CLUSTERS, AEROSOLS, AND HYDROSOLES
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Abstract

We studied the variations in time series of the near-surface water vapor partial pressure on the territory of Europe over a multiyear period. It is found that the contribution of fluctuations on time scales from 2 to 5 years is from 35 to 60% of the variance of the interannual variations. The spatial dependences of the local coherence between harmonics on 2–4 scales of Niño3.4 index and the water partial pressure in Europe are determined. We determined that the correlation of these variations reaches 0.7–0.9. It is shown that westward-propagating planetary waves play a significant role in energy transfer from equatorial regions to midlatitudes. This energy begins to increase in the winter of an El Niño year and reaches the maximum a year later.

Keywords:

near-surface water vapor partial pressure El Niño – Southern Oscillation planetary waves 

Notes

FUNDING

This work was supported by the Russian Foundation for Basic Research (project no. 17-05-00863).

CONFLICT OF INTEREST

The authors declare that they have no conflicts of interest.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Kazan Federal UniversityKazanRussia

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