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Springer Proceedings in Earth and Environmental Sciences

ISSN:2524342

2025

10.1007/978-3-031-88459-7_47

The article is devoted to the study of the main factors affecting the troposphere moisture filling in the Mediterranean-Black Sea region. The variability of the effect of these factors on the long-term dynamics of the troposphere moisture content is estimated. To this end, the article analyzes the moisture content in the troposphere layers in which the largest % of moisture moves in the cold and warm periods of the year. We have calculated the moisture content in the Earth-700hPa layers for the cold period and in the Earth-500hPa layer for the warm period in the Mediterranean-Black Sea region. The component analysis algorithm employed allowed to filter the initial meteorological information and establish that the values of the first three eigenvalues make up about 70% of the total field variance. The Fast Fourier transform (FFT) algorithm allowed us to identify 3- and 4-year oscillations for the first two principal components of moisture content. A relationship was identified for the second principal components between moisture content and the Arctic Oscillation at the level of the 7-year harmonic and for the third principal components between moisture content and the North Atlantic oscillation at the level of the 5–6-year harmonic.

Arctic Oscillation, Mediterranean-Black Sea region, moisture content, North Atlantic Oscillation, principal component method

2025-08-23 17:39:28 (квартал- II)