SHORT-TERM VARIABILITY OF STANDARD ISOBARIC LEVELS’ ALTITUDES ABOVE UKRAINE AND ADJACENT TERRITORIES
Journal Title: Український географічний журнал - Year 2017, Vol 3, Issue
Abstract
The purpose of research is evaluation of seasonal (short-term) variability of standard isobaric levels’ height and features of changes in quantitative values from seasonal models above Ukraine, which represent the most typical features of annual isobaric levels’ dynamics. Seasonal models show the average values of levels’ altitudes for each day, and contain information about amplitudes and phases, spectrum semi-width and central frequency, determination coefficients of seasonal variations. There was identified that seasonal variations are better visible in upper troposphere – lower stratosphere and are almost absent for isobaric levels in boundary level. Isobaric level 1000 hPa sufficiently differs from upper situated levels by lower amplitudes, phases shifts, wide spectrum and seasonal features of level’s situation. Obtained results are very important for analysis of temperature, moisture and wind seasonal variations in free atmosphere in current climate conditions. Moreover, availability of average data gives the opportunity to computation of long-term altitudinal pressure dynamics.
Authors and Affiliations
I. V. Dvoretska, M. V. Savenets
Keywords
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- EP ID EP293140
- DOI 10.15407/ugz2017.03.041
- Views 75
- Downloads 0
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