Results 31 to 40 of about 10,329 (228)

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
doaj   +1 more source

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
doaj   +1 more source

Stratosphere-troposphere coupling on subseasonal timescales

, 2021
Variability in the Arctic stratospheric polar vortex can significantly influence the behaviour and predictability of wintertime tropospheric weather conditions on subseasonal timescales (lead-times between 2 weeks and 2 months). This thesis improves our understanding of tropospheric processes leading to subseasonal stratospheric variability and how to ...
openaire   +1 more source

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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Planning, implementation, and first results of the Tropical Composition, Cloud and Climate Coupling Experiment (TC4) [PDF]

, 2010
The Tropical Composition, Cloud and Climate Coupling Experiment (TC4), was based in Costa Rica and Panama during July and August 2007. The NASA ER-2, DC-8, and WB-57F aircraft flew 26 science flights during TC4.
Colarco, Peter R., Craig, Michael S., Jensen, Eric J., Jucks, Kenneth W., Kawa, Stephan R., Kurylo, Michael J., Mace, Gerald G., Maring, Hal, Minnis, Patrick, Newman, Paul A., Pfister, Lenny, Pickering, Kenneth E., Platnick, Steven, Rosenlof, Karen H., Schoeberl, Mark R., Selkirk, Henry B., Starr, David O., Toon, Owen B., Vasques, Marilyn F., Wennberg, Paul O., Wofsy, Steven C.   +20 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
doaj   +1 more source

An Ozone-Modified Refractive Index for Vertically Propagating Planetary Waves [PDF]

, 2007
[1] An ozone-modified refractive index (OMRI) is derived for vertically propagating planetary waves using a mechanistic model that couples quasigeostrophic potential vorticity and ozone volume mixing ratio. The OMRI clarifies how wave-induced heating due
Cordero, Eugene C., Nathan, Terrence R.
core   +2 more sources

Influence of Wintertime Polar Vortex Variation on the Climate over the North Pacific during Late Winter and Spring

Atmosphere, 2019
The effects of wintertime stratospheric polar vortex variation on the climate over the North Pacific Ocean during late winter and spring are analyzed using the National Centers for Environmental Predictions, version 2 (NCEP2) reanalysis dataset.
Kequan Zhang, Tao Wang, Mian Xu, Jiankai Zhang   +3 more
doaj   +1 more source

Stratospheric tropical warming event and its impact on the polar and tropical troposphere [PDF]

Atmospheric Chemistry and Physics, 2017
Stratosphere–troposphere coupling is investigated in relation to middle atmospheric subtropical jet (MASTJ) variations in boreal winter. An exceptional strengthening of the MASTJ occurred in association with a sudden equatorward shift of the ...
K. Kodera, N. Eguchi, H. Mukougawa, T. Nasuno, T. Hirooka   +4 more
doaj   +1 more source

On the structural changes in the Brewer-Dobson circulation after 2000 [PDF]

, 2010
In this paper we present evidence that the observed increase in tropical upwelling after the year 2000 may be attributed to a change in the Brewer-Dobson circulation pattern.
Birner, Thomas, Bönisch, Harald, Engel, Andreas, Hoor, Peter, Ray, Eric A., Tarasick, David W.   +5 more
core   +2 more sources