Manifestation of equatorial processes in the water vapor variability on the European territory
O.G. Khutorova, V.E. Khutorov, G.M. Teptin
Kazan Federal University, Kazan, Russian Federation
Keywords: приземное парциального давления водяного пара, Эль-Ниньо-Южное колебание, планетарные волны, surface water vapor partial pressure, El Nino-Southern Oscillation, planetary waves
Abstract
The variability of time series of the integral moisture content of the atmosphere and the surface partial pressure of water vapor for the territory of Europe are studied over a long period. It is established that the contribution of fluctuations on time scales from 2 to 5 years is from 35 to 60% of the interannual variance. The spatial dependences of the local coherence of harmonics on the scales of 2-4 Nino3.4 index and the partial water pressure in Europe are found. It is found that the correlation of these variations is 0.7-0.9. It is shown that planetary waves propagating from east to west play a significant role in the energy transfer from equatorial processes to middle latitudes. Their energy begins to increase in winter in the year of El Niño and reaches the maximum in a year.
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