Results 181 to 190 of about 516,730 (208)

The Dynamics of Sudden Stratospheric Warmings

Annual Review of Earth and Planetary Sciences, 1980
The normal global-scale circulation of the stratosphere is dominated by a zonally (longitudinally) symmetric mean flow that is westerly (from the west) in the winter hemisphere and easterly (from the east) in the summer hemisphere. Superposed on this zonal mean flow are longitudinally varying wave perturbations referred to as planetary waves.
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The Study of Sudden Stratospheric Warmings Using Infrasound

The Journal of the Acoustical Society of America, 2017
Infrasound has a long history in monitoring SSWs. Several pioneering studies have focused on the various effects of a major warming on the propagation of infrasound, described throughout this chapter. A clear transition can be denoted from observing anomalous signatures towards the use of these signals to study anomalies in upper atmospheric ...
Pieter Smets, Jelle Assink, Läslo Evers
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Numerical Simulation of Sudden Stratospheric Warmings

Journal of the Atmospheric Sciences, 1980
Abstract A mechanistic, quasi-geostrophic, semi-spectral model with a self-consistent calculation of the mean zonal flow fields is used to numerically simulate sudden stratospheric warmings generated by a single zonal harmonic (m) planetary wave.
Mark R. Schoeberl, Darrell F. Strobel
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On future changes in stratospheric sudden warmings

2013
Traditionally, stratospheric sudden warming events (SSWs) are defined using a fixed threshold criterion. This criterion, however, may lead to spurious results if the climate of the underlying dataset is changing. In an attempt to overcome this potential shortcoming we develop alternative criteria to define such events and test these criteria using ...
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How Frequent Are Antarctic Sudden Stratospheric Warmings in Present and Future Climate?

Geophysical Research Letters, 2021
Darryn W Waugh, Martin Jucker, Thomas Reichler   +2 more
exaly  

How Well Do We Know the Surface Impact of Sudden Stratospheric Warmings?

Geophysical Research Letters, 2021
Lantao Sun, Clara Deser, Jessica Oehrlein   +2 more
exaly  

Dynamic coupling of the stratosphere with the troposphere and sudden stratospheric warmings.

1972
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1972. ; Vita. ; Bibliography: leaves 211-220. ; Sc.D.
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Impact of sudden stratospheric warmings on equatorial ionization anomaly

Journal of Geophysical Research: Space Physics, 2010
Cesar E Valladares, Anthea J. Coster, Larisa P. Goncharenko   +2 more
exaly  

Ionospheric signatures of sudden stratospheric warming: Ion temperature at middle latitude

Geophysical Research Letters, 2008
Larisa P. Goncharenko, Shun-Rong Zhang
exaly  

Predictability of downward propagation of major sudden stratospheric warmings

Quarterly Journal of the Royal Meteorological Society, 2017
Peter Hitchcock, Alexey Karpechko, Dieter H W Peters   +2 more
exaly