Results 71 to 80 of about 713 (180)
, 2021 Sudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which large and rapid temperature increases in the winter polar stratosphere (∼10–50 km) are associated with a complete reversal of the climatological wintertime westerly winds.
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Dynamic Coupling of the Stratosphere With the Troposphere and Sudden Stratospheric Warmings [PDF]
Monthly Weather Review, 1973 Abstract Numerical time integrations of a nine-layer, quasi-geostrophic, highly truncated spectral model of the atmosphere are used to study tropospheric-stratospheric interaction with particular regard to sudden stratospheric warmings. The model is global, extends to 0.05 mb (71 km) with roughly 10-km resolution in the stratosphere, and includes an ...
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Impact of Stratospheric Sudden Warming on East Asian Winter Monsoons
Advances in Meteorology, 2015 Fifty-two Stratospheric sudden warming (SSW) events that occurred from 1957 to 2002 were analyzed based on the 40-year European Centre for Medium-Range Weather Forecasts Reanalysis dataset.
Quanliang Chen, Luyang Xu, Hongke Cai
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Earth and Planetary Physics, 2020 Using Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) data in the northern hemisphere at the 10 hPa level, we compared the stratospheric evolution of temperature and geopotential height during two major sudden ...
Zheng Ma +6 more
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Increased Frequency, Duration, and Area of Winter Polynyas North of Greenland in a Warming Climate
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Polynyas play a crucial role in the polar marine ecosystems and climate system. Four winter polynya events north of Greenland have been observed, but the response of winter polynyas to climate warming remains unknown. This study investigates projected changes in winter polynyas in the Wandel Sea north of Greenland using the AWI‐CM3 climate ...
Qi Shu +5 more
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Stratospheric sudden warmings in an idealized GCM [PDF]
Journal of Geophysical Research: Atmospheres, 2014 AbstractAn idealized general circulation model (GCM) with an analytically described Newtonian cooling term is employed to study the occurrence rate of sudden stratospheric warmings (SSWs) over a wide range of parameters. In particular, the sensitivity of the SSW occurrence rates to orographic forcing and both relaxation temperature and damping rate is ...
Jucker, M +2 more
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Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.Abstract When detonated on the Earth's surface, large explosions emit distinctive acoustic signatures that propagate over vast distances with relatively low attenuation in the form of infrasound. Infrasound stations hundreds of kilometers from the impulsive source can record the propagated pressure signal, atmospheric conditions permitting.
S. Awender, D. Fee, A. Witsil
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Polar Vortex Disruptions by High Latitude Ocean Warming
Geophysical Research LettersMid‐latitude extreme cold outbreaks are associated with disruptions of the polar vortex, which often happen abruptly in connection to a sudden stratospheric warming.
Mostafa E. Hamouda +2 more
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Unprecedented Extreme Dust Storm Triggered by Stratosphere‐Troposphere Interactions
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract An unprecedented dust storm struck southern China in April 2025, affecting hundreds of millions of people in regions rarely impacted by dust storms and challenging existing understanding of lower‐latitude dust storms. Here, we show that polar stratospheric signals enabled this event by modulating tropospheric teleconnection, revealing an ...
Wenqi Zhang +6 more
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Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Near‐space temperature is crucial for atmospheric dynamics and aerospace applications, yet data sets with refined vertical resolution remain scarce. We present the Atmospheric Spatio‐Temporal Reconstruction Network (AtmoST‐Net), which integrates high‐resolution SABER observations with dual‐source reanalysis, combining non‐uniform vertical ...
Huanwei Zhang, Yang He, Zheng Sheng
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