A tropical stratopause precursor for sudden stratospheric warmings. [PDF]
Sci Rep, 2022 AbstractDramatic meteorological phenomena in the winter polar stratosphere known as Sudden Stratospheric Warming (SSW) events are well recognized for their impacts felt across the whole atmosphere. Apart from the influence of tropospheric forcing and stratospheric control, many studies have addressed the possible role of external factors on the ...
Koushik N, Kumar KK, Pramitha M.
europepmc +5 more sources
Why Are Stratospheric Sudden Warmings Sudden (and Intermittent)? [PDF]
Journal of the Atmospheric Sciences, 2020 Abstract This paper examines the role of wave–mean flow interaction in the onset and suddenness of stratospheric sudden warmings (SSWs). Evidence is presented that SSWs are, on average, a threshold behavior of finite-amplitude Rossby waves arising from the competition between an increasing wave activity A and a decreasing zonal-mean ...
Jonathan Falk +2 more
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Impact of the 2009 major stratospheric sudden warming on the composition of the stratosphere [PDF]
Atmospheric Chemistry and Physics, 2015 Abstract. In a case study of a remarkable Major stratospheric sudden Warming (MW) during the boreal winter 2008/09, we investigate how transport and mixing triggered by this event affect the composition of the whole stratosphere in the Northern Hemisphere.
M. Tao +7 more
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Composite analysis of a major sudden stratospheric warming [PDF]
Annales Geophysicae, 2015 We present the characteristics of a major sudden stratospheric warming (SSW) by using the composite analysis method and ERA Interim reanalysis data from 1979 to 2014.
K. Hocke +5 more
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Tropospheric forcing of the boreal polar vortex splitting in January 2003 [PDF]
Annales Geophysicae, 2010 The dynamical evolution of the relatively warm stratospheric winter season 2002–2003 in the Northern Hemisphere was studied and compared with the cold winter 2004–2005 based on NCEP-Reanalyses.
D. H. W. Peters +4 more
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Stratospheric wave driving events as an alternative to sudden stratospheric sudden warmings [PDF]
, 2022 Abstract. Natural variations in the strength of the northern stratospheric polar vortex, so-called polar vortex events, help to improve sub-seasonal to seasonal (S2S) predictions of winter climate. Past research on polar vortex events has been largely focused on stratospheric sudden warming events (SSWs), a class of relatively strong weakenings of the ...
Thomas Reichler, Martin Jucker
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Identifying Perturbations That Tipped the Stratosphere Into a Sudden Warming During January 2013
Geophysical Research Letters, 2023 We present a new methodology demonstrating that specific small‐magnitude regional perturbations can cause large systematic responses in subseasonal predictions.
Chris Kent +5 more
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Enhanced Polar Vortex Predictability Following Sudden Stratospheric Warming Events
Geophysical Research Letters, 2023 Sudden stratospheric warming (SSW) events can form a window of forecast opportunity for polar vortex predictions on subseasonal‐to‐seasonal time scales.
Philip Rupp +3 more
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Observations of Pole-to-Pole, Stratosphere-to-Ionosphere Connection
Frontiers in Astronomy and Space Sciences, 2022 The behavior of the Earth’s middle atmosphere and ionosphere is governed by multiple processes resulting not only from downward energy transfer from the Sun and magnetosphere but also upward energy transfer from terrestrial weather.
L. P. Goncharenko +11 more
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Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings [PDF]
Journal of Atmospheric and Solar-Terrestrial Physics, 2019 Abstract In this study we investigate and quantify the statistical changes that occur in the stratosphere and mesosphere during 37 sudden stratospheric warming (SSW) events from 1989 to 2016. We consider changes in the in-situ ozonesonde observations of the stratosphere from four sites in the northern hemisphere (Ny-Alesund, Sodankyla, Lerwick, and ...
Denton, M.H. +6 more
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