Statistical inhomogeneity of dates of sudden stratospheric warmings in the wintertime northern hemisphere
| العنوان: | Statistical inhomogeneity of dates of sudden stratospheric warmings in the wintertime northern hemisphere |
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| المؤلفون: | E. N. Savenkova, Nikolai M. Gavrilov, Rada O. Manuilova, Alexander Pogoreltsev |
| المصدر: | Izvestiya, Atmospheric and Oceanic Physics. 53:251-258 |
| بيانات النشر: | Pleiades Publishing Ltd, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Atmospheric Science, 010504 meteorology & atmospheric sciences, Northern Hemisphere, Sudden stratospheric warming, 010502 geochemistry & geophysics, Oceanography, Atmospheric sciences, 01 natural sciences, Latitude, Amplitude, Climatology, Environmental science, Statistical analysis, Stratosphere, 0105 earth and related environmental sciences |
| الوصف: | Using the data of meteorological information reanalysis, a statistical analysis of dates of the main sudden stratospheric warmings observed in 1958–2014 has been performed and their inhomogeneous distribution in winter months with maximums in the beginning of January, from the end of January to the beginning of February, and in the end of February has been shown. To explain these regularities, a climatological analysis of variations in the amplitudes and vertical components of Eliassen–Palm fluxes created by large-scale planetary waves (PWs), as well as of zonal-mean winds and deviations of temperature from their winter-average values in high northern latitudes at heights of up to 50 km from the surface has been carried out using the 20-year (1995–2014) collection of daily meteorological information from the UK Met Office database. During the aforementioned intervals of observing more frequent sudden stratospheric warmings, climatological maximums of temperature perturbations, local minimums of eastward winds, and local maximums of the amplitude and Eliassen–Palm fluxes of PWs with a zonal wavenumber of 1 in the high-latitude northern stratosphere were found. Distinctions between atmospheric characteristics averaged over two last decades have been revealed. |
| تدمد: | 1555-628X 0001-4338 |
| DOI: | 10.1134/s0001433817030112 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e796a00df73db1522a9a0365240bc733 https://doi.org/10.1134/s0001433817030112 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........e796a00df73db1522a9a0365240bc733 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1555628X 00014338 |
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| DOI: | 10.1134/s0001433817030112 |