Results 91 to 100 of about 713 (180)
Optimizing the Definition of a Sudden Stratospheric Warming
Journal of Climate, 2018 AbstractVarious criteria exist for determining the occurrence of a major sudden stratospheric warming (SSW), but the most common is based on the reversal of the climatological westerly zonal-mean zonal winds at 60° latitude and 10 hPa in the winter stratosphere. This definition was established at a time when observations of the stratosphere were sparse.
Amy H. Butler, Edwin P. Gerber
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Remote SensingThe minor sudden stratospheric warming (SSW) event and the relevant planetary waves are investigated by analyzing ERA5 reanalysis data from July to December 2019.
Yushun Yang, Haiyan Li
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Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming. [PDF]
Sci Rep, 2021 Wu TY +4 more
europepmc +1 more source
Statistical analysis of Iran\'s heavy rains during sudden stratospheric warming
تحقیقات کاربردی علوم جغرافیاییsudden stratospheric warming has an obvious effect on the Earth's surface climate. In this research, the changes in precipitation during the occurrence of this phenomenon have been investigated.
Sorayya Derikvand +4 more
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Analysis of gravity wave activity during stratospheric sudden warmings in the northern hemisphere
Earth and Planetary PhysicsDue to the significant changes they bring to high latitude stratospheric temperature and wind, stratospheric sudden warmings (SSWs) can have an impact on the propagation and energy distribution of gravity waves (GWs). The variation characteristics of GWs
XuanYun Zeng, Guang Zhong
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What chance of a sudden stratospheric warming in the southern hemisphere?
Environmental Research Letters, 2020 Sudden stratospheric warmings (SSWs) are amongst the most dramatic events in the Earth’s atmosphere and they drive extreme surface weather conditions.
L Wang +5 more
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Sudden stratospheric warmings forced by mountains
Geophysical Research Letters, 1980 A global, quasigeostrophic model of planetary wave interaction with the mean zonal flow has been used to simulate sudden stratospheric warmings forced by mean tropospheric zonal winds interacting with orography. Planetary waves m = 1 and 2 are simultaneously computed and interact with each other only through the mean zonal flow.
Mark R. Schoeberl, Darrell F. Strobel
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How predictable are sudden stratospheric warmings?
, 2023 Sudden stratospheric warming (SSW) can have a significant downward impact on surface weather, which can last for a few weeks to months, a better understanding of the predictability and the mechanisms of SSW can potentially enhance surface weather prediction in the subseasonal-to-seasonal (S2S) timescale.
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Multi-Year Rayleigh Lidar Temperature Measurement of the Polar Middle Atmosphere at Chatanika [PDF]
EPJ Web of ConferencesWe present Rayleigh density temperature lidar temperature measurements of the stratosphere and mesosphere that extends over 87 nights from September 2018 to April 2022 made at Chatanika, Alaska (65°N, 147°W).
Das Satyaki +4 more
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September 2019 Antarctic sudden stratospheric warming
, 2020 An exceptionally strong stationary planetary wave with Zonal Wavenumber 1 led to a sudden stratospheric warming (SSW) in the Southern Hemisphere in September 2019. Ionospheric data from European Space Agency's Swarm satellite constellation mission show prominent 6-day variations in the dayside low-latitude region at this time, which can be attributed ...
Yamazaki, Yosuke (Dr.) +11 more
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