Results 91 to 100 of about 516,730 (208)
Enhancing the Upper Boundary Layer Damping Scheme for km‐Scale ICON: A Question of Wavelength
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.Abstract The upper boundary condition treatment in atmospheric models has a pronounced impact on stability and performance. At the same time, the choice of damping settings can severely impact atmospheric states by not sufficiently preventing back‐reflections of vertically propagating waves from the model top or provoking back‐reflections from the ...
C. A. Kroll +4 more
wiley +1 more source
SD-WACCM-X 2020-2021 Sudden Stratospheric Warming
, 2022 Simulation output from the Specified Dynamics version of the Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (SD-WACCM-X) for the 2020-2021 sudden stratospheric warming (SSW) event.
Pedatella, Nicholas
core +1 more source
Space Weather, Volume 24, Issue 9, September 2026.Abstract Global Ionospheric Specification (GIS) three‐dimensional electron density profiles constructed by assimilating the line‐of‐sight total electron content (TEC) from global navigation satellite system (GNSS) radio occultation (RO) measurements by FORMOSAT‐7/COSMIC‐2 (F7/C2) and ground‐based receiver network from international GNSS service ...
P. K. Rajesh +7 more
wiley +1 more source
, 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.
openaire +1 more source
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
doaj +1 more source
Quasi 6‐Day Wave Variability in the Thermosphere and Ionosphere: Observations and Modeling
Earth and Space Science, Volume 13, Issue 9, September 2026.Abstract Satellite observations of the upper mesosphere and lower thermosphere from TIMED‐SABER and ICON‐MIGHTI reveal a clear Quasi 6‐Day Wave (Q6DW) event in the winds and temperatures in this region. This Q6DW event persists across multiple data sets throughout the middle‐to‐upper thermosphere and the F‐region ionosphere, including GOLD disk ...
Oluwafisayo P. Owolabi +2 more
wiley +1 more source
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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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
doaj +1 more source
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
doaj +1 more source
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.Abstract Southern Hemisphere (SH) circulation and surface climate changes are emerging in recent decades. For example, in most seasons, the SH Hadley cell edge and the eddy‐driven jet stream have shifted polewards, and the Southern Annular Mode (SAM) has trended towards its positive phase.
Leandro B. Díaz +25 more
wiley +1 more source