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Stratospheric predictability and sudden stratospheric warming events [PDF]
Journal of Geophysical Research, 2009 A comparative study of the limit of predictability in the stratosphere and troposphere in a coupled general circulation model is carried out using the National Center for Environmental Prediction (NCEP) Climate Forecast System Interactive Ensemble (CFSIE).
Cristiana Stan
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Blocking precursors to stratospheric sudden warming events [PDF]
Geophysical Research Letters, 2009 The primary causes for the onset of major, midwinter, stratospheric sudden warming events remain unclear. In this paper, we report that 25 of the 27 events objectively identified in the ERA‐40 dataset for the period 1957–2001 are preceded by blocking patterns in the troposphere. The spatial characteristics of tropospheric blocks prior to sudden warming
Olivia Martius, Lorenzo M Polvani
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Final Sudden Stratospheric Warmings and the memory of the stratosphere
2021<p>Sudden Stratospheric Warming (SSW) is the most spectacular dynamic event occurring in the middle atmosphere. It can lead to a warming of the winter polar stratosphere by a few tens of K in one to two weeks and a reversal of the stratospheric circulation from wintertime prevailing westerly winds to easterly winds similar to summer ...
Alain Hauchecorne +2 more
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A research on the Stratosphereic Sudden Warming
Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, 2011In this dissertation, we described the basic measure of detecting atmosphere—the basic component of Radiosonde and it's principle. With the definition of the Stratospheric Sudden Warming (SSW) and the measure of ascertaining the event of the Stratospheric Sudden Warming, my research are mainly focused on finding the case of SSW phenomenon from the ...
null Wei Li +2 more
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Sudden Stratospheric Warmings as Catastrophes
Journal of the Atmospheric Sciences, 1985The sudden stratospheric warming (SSW) process is qualitatively studied using a conceptual and numerical approach guided by catastrophe theory. A simple example of a catastrophe taken from nonlinear dynamics is given, and results from previous modelling studies of SSW are interpreted in light of catastrophe theory.
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Simulated sudden stratospheric warming; synoptic evolution
Quarterly Journal of the Royal Meteorological Society, 1987AbstractAn analysis is presented of a sudden stratospheric warming event which occurred spontaneously during a general circulation model simulation of the global atmospheric circulation. Two separate warming pulses exhibit the same dynamical evolution with a ‘cycle’ of about two weeks.
W. T. Blackshear +2 more
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The Dynamics of Sudden Stratospheric Warmings
Annual Review of Earth and Planetary Sciences, 1980The 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, 2017Infrasound 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, 1980Abstract 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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