Interannual variability of surface and integral moisture content in the European territory and atmospheric circulation
O.G. Khutorova, V.E. Khuturov, G.M. Teptin
Kazan Federal University, 18 Kremlyovskaya St., Kazan, 420008, Republic of Tatarstan, Russian Federation
Keywords: интегральное влагосодержание атмосферы, парциальное давление водяного пара, межгодовые процессы, дистанционное зондирование сигналами спутниковых навигационных систем, atmospheric integral moisture content, water vapor partial pressure, interannual processes, remote sensing by satellite navigation systems
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 over a long period have been studied. The main contribution to variance of moisture contents is given by seasonal variations; it is 60-70%. Mesoscale processes give 7-17%; synoptic processes give 17-27%. The linear trend contributes less than 1% to the overall variance of the variability of the atmospheric moisture content in Europe. It is shown that the interannual variability of the atmospheric moisture content is manifested both in the quasiperiodic variability of the annual mean values and in the variations in the intensity of the synoptic processes. The irregular coherence of variations in the circulation indices and surface partial pressure of water vapor in Europe with periods of 2-3 years, 5-6, 8-11, and 10-13 years is established.
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