Results 21 to 30 of about 10,329 (228)

Stratosphere–Troposphere Coupling in the Southern Hemisphere [PDF]

Journal of the Atmospheric Sciences, 2005
AbstractThis study examines the temporal evolution of the tropospheric circulation following large-amplitude variations in the strength of the Southern Hemisphere (SH) stratospheric polar vortex in data from 1979 to 2001 and following the SH sudden stratospheric warming of 2002.
Thompson, David W. J., Baldwin, Mark P., Solomon, Susan   +2 more
openaire   +2 more sources

Atmospheric Circulation Response to Short-Term Arctic Warming in an Idealized Model [PDF]

, 2020
Recent Arctic sea ice loss in fall has been posited to drive midlatitude circulation changes into winter and even spring. Past work has shown that sea ice loss can indeed trigger a weakening of the stratospheric polar vortex, which can lead to delayed ...
Hell, Momme C., Li, Camille, Schneider, Tapio   +2 more
core   +2 more sources

Hyperchaos from a Model of Coupled Stratosphere-Troposphere Dynamics [PDF]

International Journal of Bifurcation and Chaos, 2017
We present a six-dimensional system describing coupled troposphere-stratosphere dynamics which takes the form of two coupled Lorenz-84 systems (one for each of the troposphere and stratosphere) involving thermal forcing terms. The systems are coupled through a linear interaction term, which permits energy transfer between both troposphere and ...
Adusumilli, S, Van Gorder, R
openaire   +2 more sources

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
doaj   +1 more source

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.
openaire   +2 more sources

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
doaj   +1 more source

On the Role of Radiative Processes in Stratosphere–Troposphere Coupling [PDF]

Journal of Climate, 2009
Abstract Climate change in the Southern Hemisphere (SH) polar stratosphere is associated with substantial changes in the atmospheric circulation that extend to the earth’s surface. The mechanisms that drive the changes in the SH troposphere are not fully understood, but most previous hypotheses have focused on the role of atmospheric ...
Grise, Kevin M., Thompson, David W. J., Forster, Piers M.   +2 more
openaire   +3 more sources

Solar influences on dynamical coupling between the stratosphere and troposphere [PDF]

, 2006
We use a simplified atmospheric general circulation model (AGCM) to investigate the response of the lower atmosphere to thermal perturbations in the lower stratosphere.
Blackburn, M., Haigh, J. D.
core   +1 more source

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”.
openaire   +1 more source

Atmospheric temperature responses to solar irradiance and geomagnetic activity [PDF]

, 2005
The relative effects of solar irradiance and geomagnetic activity on the atmospheric temperature anomalies (Ta) are examined from the monthly to interdecadal timescales. Geomagnetic Ap (Ap) signals are found primarily in the stratosphere, while the solar
Hua Lu, Martin J. Jarvis, Hans-F. Graf, Peter C. Young, Richard B. Horne, Arnold, Baldwin, Baldwin, Boberg, Bochnicek, Brasseur, Bucha, Callis, Callis, Clilverd, Crooks, Davis, Ebisuzaki, Egorova, Garrett, Gleisner, Gray, Gray, Haigh, Haigh, Haigh, Haigh, Haigh, Hinteregger, Holton, Hood, Hoyt, Jackman, Keckhut, Kodera, Kodera, Kodera, Kuroda, Labitzke, Labitzke, Labitzke, Labitzke, Labitzke, Labitzke, Labitzke, Labitzke, Lean, Lean, Matthes, Mayaud, Naito, Naujokat, Orsolini, Pascoe, Randall, Randall, Randel, Renard, Rinsland, Rottman, Rozanov, Salby, Scaife, Seidel, Sheeley, Shindell, Shindell, Siskind, Solomon, Thejll, Thiebaux, Thorne, Thorne, van Loon, Vennerstrom, Young, Young   +76 more
core   +2 more sources