Results 21 to 30 of about 668 (190)

CMIP5/6 models project little change in the statistical characteristics of sudden stratospheric warmings in the 21st century

Environmental Research Letters, 2021
Using state-of-the-art models from the Coupled Model Intercomparison Project Phases 5 and 6 (CMIP5/6), future changes of sudden stratospheric warming (SSW) events under a moderate emission scenario (RCP45/SSP245) and a strong emissions scenario (RCP85 ...
Jian Rao, Chaim I Garfinkel
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Effects of stratosphere‐troposphere chemistry coupling on tropospheric ozone [PDF]

Journal of Geophysical Research: Atmospheres, 2010
A new, computationally efficient coupled stratosphere‐troposphere chemistry‐climate model (S/T‐CCM) has been developed based on three well‐documented components: a 64‐level general circulation model from the UK Met Office Unified Model, the tropospheric chemistry transport model (STOCHEM), and the UMSLIMCAT stratospheric chemistry module.
Tian, Wenshou, Chipperfield, Martyn P., Stevenson, David S.; id_orcid 0000-0002-4745-5673, Damoah, Richard, Dhomse, Sandip, Dudhia, Anu, Pumphrey, Hugh, Bernath, Peter   +7 more
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A process-based evaluation of biases in extratropical stratosphere–troposphere coupling in subseasonal forecast systems [PDF]

Weather and Climate Dynamics
Two-way coupling between the stratosphere and troposphere is recognized as an important source of subseasonal-to-seasonal (S2S) predictability and can open windows of opportunity for improved forecasts.
C. I. Garfinkel, Z. D. Lawrence, Z. D. Lawrence, A. H. Butler, E. Dunn-Sigouin, E. Dunn-Sigouin, I. Statnaia, A. Y. Karpechko, G. Koren, M. Abalos, B. Ayarzagüena, D. Barriopedro, N. Calvo, A. de la Cámara, A. Charlton-Perez, J. Cohen, D. I. V. Domeisen, D. I. V. Domeisen, J. García-Serrano, N. P. Hindley, M. Jucker, H. Kim, R. W. Lee, S. H. Lee, M. Osman, M. Osman, F. M. Palmeiro, I. Polichtchouk, J. Rao, J. H. Richter, C. Schwartz, S.-W. Son, M. Taguchi, N. L. Tyrrell, C. J. Wright, R. W.-Y. Wu   +35 more
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The Impact of Oceanic Feedbacks on Stratosphere‐Troposphere Coupling in an Idealized Model

Journal of Geophysical Research: Atmospheres, 2023
AbstractStratospheric temperature perturbations (STPs) caused by for example, variations in stratospheric ozone, are an important driver of changes in tropospheric dynamics, particularly pertinent to the long‐term climatic evolution of the Southern Hemisphere. However, the impact of ocean feedbacks on this interaction has not been fully examined.
Natasha E. Trencham, Arnaud Czaja, Joanna D. Haigh   +2 more
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Stratosphere-Troposphere Coupling and Global Warming [PDF]

, 2021
<p>The atmospheric circulation response to the anthropogenic increase of CO<sub>2</sub> is known to generally involve a number of pathways of change, often leading to contrasting responses, the so called “tug of wars”.
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Gravity waves as a mechanism of troposphere–stratosphere–mesosphere coupling during sudden stratospheric warming [PDF]

Atmospheric Chemistry and Physics
The propagation of gravity waves (GWs) and their role in the coupling of the troposphere–stratosphere–mesosphere atmospheric layers during sudden stratospheric warming (SSW) are studied. A standard set of hydrodynamic (HD) equations is used to derive the
G. Jovanovic
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Energetic Particle Forcing of the Northern Hemisphere winter stratosphere: Comparison to solar irradiance forcing

Frontiers in Physics, 2014
Variation in solar irradiance is considered an important factor in natural climate forcing. Variations in the solar UV in particular are now regarded as a major source of decadal variability in the stratosphere, influencing surface climate through ...
Annika eSeppälä, Mark A Clilverd
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A critical comparison of stratosphere–troposphere coupling indices [PDF]

Quarterly Journal of the Royal Meteorological Society, 2009
AbstractAssessing stratosphere–troposphere coupling in observational data or model output requires a multi‐level index with high time resolution. Ideally, such an index would (1) represent spatial patterns in the troposphere that are most strongly coupled with stratospheric variability and (2) be robust and computationally feasible in both observations
Baldwin, Mark P., Thompson, David W. J.
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Quantifying stratospheric biases and identifying their potential sources in subseasonal forecast systems [PDF]

Weather and Climate Dynamics, 2022
The stratosphere can be a source of predictability for surface weather on timescales of several weeks to months. However, the potential predictive skill gained from stratospheric variability can be limited by biases in the representation of stratospheric
Z. D. Lawrence, Z. D. Lawrence, M. Abalos, B. Ayarzagüena, D. Barriopedro, A. H. Butler, N. Calvo, A. de la Cámara, A. Charlton-Perez, D. I. V. Domeisen, D. I. V. Domeisen, E. Dunn-Sigouin, J. García-Serrano, C. I. Garfinkel, N. P. Hindley, L. Jia, L. Jia, M. Jucker, M. Jucker, A. Y. Karpechko, H. Kim, A. L. Lang, S. H. Lee, P. Lin, P. Lin, M. Osman, M. Osman, F. M. Palmeiro, J. Perlwitz, I. Polichtchouk, J. H. Richter, C. Schwartz, S.-W. Son, I. Statnaia, M. Taguchi, N. L. Tyrrell, C. J. Wright, R. W.-Y. Wu   +37 more
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Impact of the stratosphere on tropospheric climate change

Geophysical Research Letters, 2008
The atmospheric circulation response to CO2 doubling in various versions of an atmospheric general circulation model (AGCM) without a well‐resolved stratosphere (“low‐top” model), is compared to the response in a version of the same AGCM with a well ...
Michael Sigmond, John F. Scinocca, Paul J. Kushner   +2 more
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