Results 1 to 10 of about 668 (190)
The importance of interactive chemistry for stratosphere–troposphere coupling [PDF]
Atmospheric Chemistry and Physics, 2019 Recent observational and modeling studies suggest that stratospheric ozone depletion not only influences the surface climate in the Southern Hemisphere (SH), but also impacts Northern Hemisphere (NH) spring, which implies a strong interaction between ...
S. Haase, K. Matthes, K. Matthes
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Geophysical Research Letters, 2023 The dominant pattern of Northern Hemisphere extratropical climate variability is the Northern Annular Mode (NAM), which in wintertime represents the coupling of the stratospheric and tropospheric circulations. The internal variability associated with the
Amy H. Butler +2 more
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Quantifying the Timescale and Strength of Southern Hemisphere Intraseasonal Stratosphere-troposphere Coupling. [PDF]
Geophys Res Lett, 2019 AbstractThe Southern Hemisphere zonal circulation manifests a downward influence of the stratosphere on the troposphere from late spring to early summer. However, the strength and timescale of the connection, given the stratospheric state, have not been explicitly quantified.
Saggioro E, Shepherd TG.
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A blocking view of the stratosphere‐troposphere coupling [PDF]
Journal of Geophysical Research D: Atmospheres, 2014 AbstractDynamical influence from the stratosphere is known to play a role in shaping the wintertime tropospheric circulation patterns. Observations suggest that this influence is strongest following weak and strong polar vortex events, termed sudden stratospheric warmings (SSWs) and vortex intensification (VI) events, respectively.
James Anstey, Paolo Davini
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On the value of reanalyses prior to 1979 for dynamical studies of stratosphere–troposphere coupling [PDF]
Atmospheric Chemistry and Physics, 2019 Studies of stratosphere–troposphere coupling, particularly those seeking to understand the dynamical processes underlying the coupling following extreme events such as major stratospheric warmings, suffer significantly from the relatively small number of
P. Hitchcock, P. Hitchcock
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The role of convective overshooting clouds in tropical stratosphere–troposphere dynamical coupling [PDF]
Atmospheric Chemistry and Physics, 2015 This paper investigates the role of deep convection and overshooting convective clouds in stratosphere–troposphere dynamical coupling in the tropics during two large major stratospheric sudden warming events in January 2009 and January 2010.
K. Kodera +3 more
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Stratosphere‐troposphere coupling and annular mode variability in chemistry‐climate models [PDF]
Journal of Geophysical Research, 2010 The internal variability and coupling between the stratosphere and troposphere in CCMVal‐2 chemistry‐climate models are evaluated through analysis of the annular mode patterns of variability. Computation of the annular modes in long data sets with secular trends requires refinement of the standard definition of the annular mode, and a more robust ...
Hideharu Akiyoshi +2 more
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Stratospheric precursor induces wintertime phase reversal of the “warm Arctic-cold Eurasia” pattern [PDF]
Nature CommunicationsRapid Arctic warming has reached 2–4 times the global average, contrasting with the cooling trend in mid-high latitude Eurasia during the 1990s–2010s. A notable phenomenon of the “warm Arctic-cold Eurasia” (WACE) pattern is its frequent phase reversal ...
Yijia Zhang +4 more
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Signature of the stratosphere–troposphere coupling on recent record-breaking Antarctic sea-ice anomalies [PDF]
The Cryosphere, 2023 In February 2023, the sea-ice extent around Antarctica dropped to 1.79×106 km2, setting a satellite-era record low for the second straight year. Recent records stress the need for further research into the factors behind record-breaking Antarctic sea-ice
R. R. Cordero +11 more
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Journal of Advances in Modeling Earth Systems, 2012 Extreme cold spells over Northern Europe during winter are examined in order to address the question to what degree and in which ways stratospheric dynamics may influence the state of the troposphere.
Lorenzo Tomassini +3 more
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