Results 71 to 80 of about 516,711 (190)
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
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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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Space Weather, 2021 The present study investigates the ionospheric F‐layer scintillation responses in the American sector (90°W–0°, ±50° dip latitude) during the Northern Hemisphere winter sudden stratospheric warming events of 2007–2008, 2008–2009, 2009–2010, and 2012–2013.
Hailun Ye +7 more
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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 ...
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The impact of the mixing properties within the Antarctic stratospheric vortex on ozone loss in spring [PDF]
, 2001 Calculations of equivalent length from an artificial advected tracer provide new insight into the isentropic transport processes occurring within the Antarctic stratospheric vortex. These calculations show two distinct regions of approximately equal area:
Shuckburgh, E. F. +19 more
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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
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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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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
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, 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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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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