ZABOLOTSKA T.M., SHPYG V.M., TSILA A.YU. THE CHANGES OF CLOUD COVER CHARACTERISTICS OVER TERRITORY OF UKRAINE DURING OF THE GLOBAL WARMING
DOI: https://doi.org/10.17721/2306-5680.2019.4.10
Hidrolohiiа, hidrokhimiiа i hidroekolohiiа. 2019. № 4 (55)
Publication language: Ukrainian
Authors:
Zabolotska T., Ukrainian hydrometeorological institute
Shpyg V.M., Ukrainian hydrometeorological institute
Tsila A.Yu., Taras Shevchenko National University of Kyiv
The statistical estimation of changes of the cloud cover characteristics was made by the data of the meteorological observations over Ukraine during 1961-2017. Such characteristics as the quantity of total and lower cloudiness, the frequency of clear and overcast sky, the frequency of main cloud forms were analyzed. Monthly, seasonal and annual observational data were used for computation of the trends, the sliding of thirty years (1961-1990, 1971-2000, 1981-2010, 2001-2017) and the fluctuations between successive decades in regions (west, north, central, east and south). The clear sky frequency for total cloudiness was decreasing with different intensity in all regions. This decreasing was forcing all time on west and east and against the gradually stopping on central and south and forcing in third sliding of thirty years and stopping in fourth on north. The clear sky frequency for lower cloudiness was more complex and indeterminate. The overcast sky frequency for total and lower cloudiness was decreasing all time in all regions with different intensity in space and time. The half-clear sky frequency for total and lower cloudiness was forcing all time in all regions with different intensity in space and time. The quasi-periodicity changes of the cloud cover characteristics for total and lower cloudiness confirm the fluctuations of the changes between the successive decades. These changes agree with the corresponding changes of air pressure on level sea. The decreasing of the frequency of main cloud forms was 55 %, the increasing was 45 %. The increasing of the frequency Cb, Ac, Cc and Ci was all time over all territory
Keywords: total and clear cloudiness, sky condition, main cloud forms, region, frequency, sliding of thirty years, fluctuations.
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HOW TO CITE
Zabolotska, T.M., Shpyg, V.M., Tsila, A.Yu. (2019). The changes of cloud cover characteristics over territory of Ukraine during of the global warming. Hidrolohiia, hidrokhimiia i hidroekolohiia [Hydrology, Hydrochemistry and Hydroecology], 4(55), 121-130 (in Ukrainian, abstr. in English). https://doi.org/10.17721/2306-5680.2019.4.10.