Results 71 to 80 of about 713 (180)
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract Solar eclipses offer natural experiments to isolate the photochemical response of mesospheric ozone to solar radiation. Using the WACCM‐X model, we performed mechanism‐oriented sensitivity experiments for the 14 December 2020 eclipse to quantify the tertiary‐ozone‐maximum‐like (TOM‐like) response.
T. Yang +5 more
wiley +1 more source
Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions
Journal of the Atmospheric Sciences, 2017 AbstractThe Whole Atmosphere Community Climate Model, version 4 (WACCM4), is used to investigate the influence of stratospheric conditions on the development of sudden stratospheric warmings (SSWs). To this end, targeted experiments are performed on selected modeled SSW events.
Alvaro de la Cámara +6 more
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract The Brewer‐Dobson circulation (BDC) is a fundamental driver of trace gas transport in the middle atmosphere. Direct quantification of its descent rate remains observationally challenging. Here, we leverage wintertime solar proton events (SPEs) as natural experiments and use ozone‐depletion trajectories as dynamical tracers to quantify polar ...
Yuting Wang +6 more
wiley +1 more source
Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
Earth and Space Science, 2019 In the past years, large particle physics experiments have shown that muon rate variations detected in underground laboratories are sensitive to regional, middle‐atmosphere temperature variations.
M. Tramontini +4 more
doaj +1 more source
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
wiley +1 more source
The influence of the equatorial upper stratosphere on stratospheric sudden warmings [PDF]
Geophysical Research Letters, 2003 A stratosphere mesosphere model is used in a set of idealized experiments to investigate the sensitivity of the Northern Hemisphere winter stratospheric flow to the equatorial zonal winds in the upper and the lower stratosphere. Sensitivity is found to the lower stratospheric winds (below 40 km) only in the early part of the model integration as the ...
openaire +2 more sources
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
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
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 ...
openaire +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