Results 71 to 80 of about 668 (190)
Stratosphere–Troposphere Coupling in a Relatively Simple AGCM: The Role of Eddies
Journal of Climate, 2004 The extratropical circulation response to cooling of the polar-winter stratosphere in a simple AGCM is investigated. The AGCM is a dry hydrostatic primitive equation model with zonally symmetric boundary conditions and analytically specified physics.
Kushner, Paul J., Polvani, Lorenzo M.
openaire +3 more sources
Modulation of Stratosphere‐to‐Troposphere Transport of Ozone by North Pacific Weather Patterns
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Stratosphere‐to‐troposphere transport (STT) of ozone is a major natural source of tropospheric ozone and is tightly linked to both stratospheric and tropospheric circulations. However, the complex interactions of drivers make it challenging to understand the subseasonal variability of STT.
Jaewon Lee, Yutian Wu, Simon H. Lee
wiley +1 more source
Interannual Influence of Antarctic Sea Ice on Southern Hemisphere Stratosphere‐Troposphere Coupling
Geophysical Research LettersWhile weakening of the boreal polar vortex may be caused by autumnal Arctic sea ice loss, less is known about the interannual influence of Antarctic sea ice on stratosphere‐troposphere coupling in the Southern Hemisphere.
Divya Rea +5 more
doaj +1 more source
The Coupled Stratosphere–Troposphere Response to Impulsive Forcing from the Troposphere
Journal of the Atmospheric Sciences, 2005 Abstract A simple atmospheric general circulation model (GCM) is used to investigate the transient response of the stratosphere–troposphere system to externally imposed pulses of lower-tropospheric planetary wave activity. The atmospheric GCM is a dry, hydrostatic, global primitive-equations model, whose circulation includes an active ...
Reichler, Thomas +2 more
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SuPerPoV: Score and Evolution of the Stratospheric Polar Vortex via Persistent Homology
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Classifying the stratospheric polar vortex provides predictability for surface weather on extended‐range timescales. However, all definitions of these events proposed in over 60 years of study depend on empirically chosen parameters and yield different results when they change.
Jake Cordes, Barbara Giunti, Zheng Wu
wiley +1 more source
Weak Tropical Tropospheric OH Response to Idealized ENSO
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract The hydroxyl radical (OH) is a key oxidant for methane. Previous studies suggest that OH exhibits interannual variability linked to the El Nino–Southern Oscillation (ENSO), but the sign, magnitude, and underlying mechanisms of this response remain uncertain.
Qindan Zhu +6 more
wiley +1 more source
Weather and Climate ExtremesWeak stratospheric polar vortex (WSPV) events are dynamically connected with the variations in the tropospheric circulation, serving as crucial harbingers for surface cold extremes in the Northern Hemisphere.
Murong Zhang, Xiao-Yi Yang, Yipeng Huang
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On the surface impact of Arctic stratospheric ozone extremes
Environmental Research Letters, 2015 A comprehensive stratosphere-resolving atmospheric model, with interactive stratospheric ozone chemistry, coupled to ocean, sea ice and land components is used to explore the tropospheric and surface impacts of large springtime ozone anomalies in the ...
N Calvo, L M Polvani, S Solomon
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Lidar Ratios and Fluorescence Properties of Stratospheric Volcanic Sulfate
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract From January to June 2025, a stratospheric sulfate layer originating from the eruptions of the Ruang volcano in April 2024 could be observed with a multi‐wavelength Raman and fluorescence lidar over Leipzig, Germany. The aerosol‐optical depth of the stratospheric volcanic sulfate was <0.02 ${< } 0.02$, decreasing with time.
Benedikt Gast +4 more
wiley +1 more source
Environmental Research LettersIt has been found that the quasi-biennial oscillation (QBO) in the stratosphere have an important impact on the Madden Julian oscillation (MJO). In this study, we show that there is an obvious biennial oscillation in the tropical upper troposphere, which
Feiyang Wang, Tanlong Dai, Yuanyuan Han
doaj +1 more source