Climate conditions of low clouds over the territory of Siberia and its modern change. Part 1. Features of low clouds conditions
V.S. Komarov, S.N. Il’in, A.V. Lavrinenko, N.Ya. Lomakina, E.V. Gorev, D.P. Nakhtigalova
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
gfm@iao.ru
Keywords: low-level clouds, amount of clouds, cloud base height, climatic characteristics, Siberian region
Abstract
The low clouds conditions over the territory of the Siberian region are researched, using the 47-year (1966-2012) observation data of 25 meteorological stations. The spatial distribution of the seasonal average values of the amount of low-level clouds and their frequency according to five gradations (amount of clouds: 0, 1-3, 4-6, 7-9, and 10), as well as the cloud base heights and its standard deviations was analysed for four seasons (winter, spring, summer, autumn).
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