Results 1 to 10 of about 10,278 (196)

Stratospheric precursor induces wintertime phase reversal of the “warm Arctic-cold Eurasia” pattern [PDF]

Nature Communications
Rapid 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, Zhicong Yin, Wenshou Tian, Shengping He, Pangchi Hsu   +4 more
doaj   +2 more sources

How do different pathways connect the stratospheric polar vortex to its tropospheric precursors? [PDF]

Weather and Climate Dynamics, 2023
Processes involving troposphere–stratosphere coupling have been identified as important contributors to an improved subseasonal to seasonal prediction in the mid-latitudes.
R. H. Köhler, R. Jaiser, D. Handorf
doaj   +1 more source

The stratosphere: a review of the dynamics and variability [PDF]

Weather and Climate Dynamics, 2022
Large-scale, intra-seasonal to inter-annual variability of the stratosphere is reviewed. Much of the variability is dynamical and induced by waves emanating from the troposphere.
N. Butchart
doaj   +1 more source

How do gravity waves triggered by a typhoon propagate from the troposphere to the upper atmosphere? [PDF]

Atmospheric Chemistry and Physics, 2022
Gravity waves (GWs) strongly affect atmospheric dynamics and photochemistry and the coupling between the troposphere, stratosphere, mesosphere, and thermosphere. In addition, GWs generated by strong disturbances in the troposphere (e.g. thunderstorms and
Q. Li, Q. Li, J. Xu, J. Xu, H. Liu, X. Liu, W. Yuan, W. Yuan   +7 more
doaj   +1 more source

Amplified Decadal Variability of Extratropical Surface Temperatures by Stratosphere‐Troposphere Coupling

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, Alexey Yu. Karpechko, Chaim I. Garfinkel   +2 more
doaj   +1 more source

Important role of stratosphere-troposphere coupling in the Arctic mid-to-upper tropospheric warming in response to sea-ice loss

npj Climate and Atmospheric Science, 2023
Recent studies have suggested that deep Arctic warming, extending from the surface to the upper troposphere, could trigger mid-latitude atmospheric circulation changes, while shallow Arctic warming, confined in the lowermost troposphere, induces ...
Mian Xu, Wenshou Tian, Jiankai Zhang, James A. Screen, Chongyang Zhang, Zhe Wang   +5 more
doaj   +1 more source

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
doaj   +1 more source

Stratospheric Nudging And Predictable Surface Impacts (SNAPSI): a protocol for investigating the role of stratospheric polar vortex disturbances in subseasonal to seasonal forecasts [PDF]

Geoscientific Model Development, 2022
Major disruptions of the winter season, high-latitude stratospheric polar vortices can result in stratospheric anomalies that persist for months. These sudden stratospheric warming events are recognized as an important potential source of forecast skill ...
P. Hitchcock, A. Butler, A. Charlton-Perez, C. I. Garfinkel, T. Stockdale, J. Anstey, D. Mitchell, D. I. V. Domeisen, D. I. V. Domeisen, T. Wu, Y. Lu, D. Mastrangelo, P. Malguzzi, H. Lin, R. Muncaster, B. Merryfield, M. Sigmond, B. Xiang, B. Xiang, L. Jia, Y.-K. Hyun, J. Oh, D. Specq, I. R. Simpson, J. H. Richter, C. Barton, J. Knight, E.-P. Lim, H. Hendon   +28 more
doaj   +1 more source

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

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