Results 11 to 20 of about 516,711 (190)

Sudden Stratospheric Warmings [PDF]

Reviews of Geophysics, 2020
Abstract Sudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which large and rapid temperature increases in the winter polar stratosphere ( ∼ 10–50 km) are associated with a complete reversal of the climatological wintertime westerly winds. SSWs are
Mark P. Baldwin, Blanca Ayarzagüena, Thomas Birner, Neal Butchart, Amy H. Butler, Andrew J. Charlton‐Perez, Daniela I. V. Domeisen, Chaim I. Garfinkel, Hella Garny, Edwin P. Gerber, Michaela I. Hegglin, Ulrike Langematz, Nicholas M. Pedatella   +12 more
openaire   +6 more sources

Mechanisms and predictability of sudden stratospheric warming in winter 2018 [PDF]

Weather and Climate Dynamics, 2020
In the beginning of February 2018 a rapid deceleration of the westerly circulation in the polar Northern Hemisphere stratosphere took place, and on 12 February the zonal-mean zonal wind at 60∘ N and 10 hPa reversed to easterly in a sudden ...
I. A. Statnaia, I. A. Statnaia, A. Y. Karpechko, H. J. Järvinen   +3 more
doaj   +4 more sources

Influence of sudden stratospheric warmings on tropospheric winds [PDF]

Meteorologische Zeitschrift, 2011
The influence of changes in the zonal mean stratospheric potential vorticity, associated with sudden stratospheric warmings, on the zonal mean zonal wind in the troposphere is investigated by piecewise potential vorticity inversion.
Yvonne Hinssen, Aarnout van Delden, Theo Opsteegh   +2 more
doaj   +2 more sources

Reduced aerosol transport from South Asia to the Tibetan Plateau following the January 2021 sudden stratospheric warming event

Communications Earth & Environment
Aerosols from South Asia directly enhance glacier melt over the Tibetan Plateau. While the transboundary transport of aerosols from South Asia towards the Tibetan Plateau has been extensively investigated from a tropospheric perspective, less focus has ...
Yuling Hu, Haipeng Yu, Shichang Kang, Mian Xu, Siyu Chen, Junhua Yang, Xintong Chen, Jixiang Li   +7 more
doaj   +2 more sources

Antarctic Ozone Enhancement During the 2019 Sudden Stratospheric Warming Event

Geophysical Research Letters, 2020
We analyze the 2019 sudden stratospheric warming event that occurred in the Southern Hemisphere through its impact on the Antarctic ozone. Using temperature, ozone, and nitric acid data from the Infrared Atmospheric Sounding Interferometer (IASI), our ...
Sarah Safieddine, Marie Bouillon, Ana Claudia Parracho, Julien Jumelet, Florent Tencé, Guillaume Herment, Gaetan Heymes, Andrea Pazmino, Florence Goutail, Catherine Wespes, Slimane Bekki, Anne Boynard, Juliette Hadji‐Lazaro, Pierre‐François Coheur, Daniel Hurtmans, Cathy Clerbaux   +15 more
doaj   +2 more sources

September 2019 Antarctic sudden stratospheric warming

, 2020
An exceptionally strong stationary planetary wave with Zonal Wavenumber 1 led to a sudden stratospheric warming (SSW) in the Southern Hemisphere in September 2019. Ionospheric data from European Space Agency's Swarm satellite constellation mission show prominent 6-day variations in the dayside low-latitude region at this time, which can be attributed ...
Yamazaki, Yosuke (Dr.), Wendt, Vivien (Dr. rer. nat.), Miyoshi, Y., Stolle, Claudia (Prof. Dr.), Siddiqui, Tarique Adnan (M. Sc.), Kervalishvili, Guram N. (Dr.), Laštovička, Jan, Kozubek, M., Ward, W., Themens, D. R., Kristoffersen, S., Alken, Patrick   +11 more
openaire   +5 more sources

Tracking the Stratosphere‐to‐Surface Impact of Sudden Stratospheric Warmings [PDF]

Journal of Geophysical Research: Atmospheres, 2021
AbstractSudden stratospheric warming (SSW) events are extreme atmospheric regimes which can have a signature in surface weather up to 40 days after event onset in the stratosphere. SSWs can be classified as either vortex splitting or vortex displacement events, with the nature and timing of the surface impact potentially being different between the two.
Richard J. Hall, Daniel M. Mitchell, William J. M. Seviour, Corwin J. Wright   +3 more
openaire   +3 more sources

A sudden stratospheric warming compendium [PDF]

Earth System Science Data, 2016
Abstract. Major, sudden midwinter stratospheric warmings (SSWs) are large and rapid temperature increases in the winter polar stratosphere are associated with a complete reversal of the climatological westerly winds (i.e., the polar vortex). These extreme events can have substantial impacts on winter surface climate, including increased frequency of ...
Amy H. Butler, Jeremiah P. Sjoberg, Dian J. Seidel, Karen H. Rosenlof   +3 more
openaire   +2 more sources

On the Influence of ENSO on Sudden Stratospheric Warmings

Journal of Geophysical Research: Atmospheres, 2023
Abstract Using the extended ERA5 reanalysis and three state‐of‐the‐art models, this study explores how El Niño‐Southern Oscillation (ENSO) can influence the total frequency, seasonal cycle and preconditioning of sudden stratospheric warmings (SSWs).
Palmeiro, F., García-Serrano, J., Ruggieri, P., Batté, L., Gualdi, S.   +4 more
openaire   +4 more sources

Spotlight: the January 2021 sudden stratospheric warming [PDF]

, 2021
On 5 January 2021, the Arctic stratospheric polar vortex dramatically weakened, and the temperature of the Arctic stratosphere rapidly increased in an event known as a major sudden stratospheric warming (SSW).
Lee, Simon, Lee, Simon H., Simon H. Lee
core   +1 more source