Results 41 to 50 of about 84,860 (301)

The Delayed Response of the Troposphere‐Stratosphere‐Mesosphere Coupling to the 2019 Southern SSW

Geophysical Research Letters, 2022
A strong Southern Hemisphere (SH) sudden stratospheric warming event occurred in September 2019 and significantly weakened the stratospheric polar vortex. Due to the positive zonal wind anomalies in the troposphere, the barotropic/baroclinic instability,
Chengyun Yang, Tao Li, Dexin Lai, Xinyue Wang, Xianghui Xue, Xiankang Dou   +5 more
doaj   +1 more source

Adding value to extended-range forecasts in northern Europe by statistical post-processing using stratospheric observations [PDF]

Atmospheric Chemistry and Physics, 2020
The strength of the stratospheric polar vortex influences the surface weather in the Northern Hemisphere in winter; a weaker (stronger) than average stratospheric polar vortex is connected to negative (positive) Arctic Oscillation (AO) and colder (warmer)
N. Korhonen, O. Hyvärinen, M. Kämäräinen, D. S. Richardson, H. Järvinen, H. Gregow   +5 more
doaj   +1 more source

Study of the winter 2005 Antarctica polar vortex [PDF]

, 2009
During winter and springtime, the flow above Antarctica at high altitude (upper troposphere and stratosphere) is dominated by the presence of a vortex centered above the continent. It lasts typically from August to November.
E. Masciadri, F. Lascaux, Hagelin, Haynes, J. Stoesz, S. Hagelin, Waugh, Waugh   +7 more
core   +1 more source

Dynamics of Saturn's South Polar Vortex

Science, 2008
The camera onboard the Cassini spacecraft has allowed us to observe many of Saturn's cloud features. We present observations of Saturn's south polar vortex (SPV) showing that it shares some properties with terrestrial hurricanes: cyclonic circulation, warm central region (the eye) surrounded by a ring of high clouds (the eye wall), and convective ...
Dyudina, Ulyana A., Ingersoll, Andrew P., Ewald, Shawn P., Vasavada, Ashwin R., West, Robert A., Del Genio, Anthony D., Barbara, John M., Porco, Carolyn C., Achterberg, Richard K., Flasar, F. Michael, Simon-Miller, Amy A., Fletcher, Leigh N.   +11 more
openaire   +3 more sources

Hyperbolic lines and the stratospheric polar vortex [PDF]

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2002
The necessary and sufficient conditions for Lagrangian hyperbolicity recently derived in the literature are reviewed in the light of older concepts of effective local rotation in strain coordinates. In particular, we introduce the simple interpretation of the necessary condition as a constraint on the local angular displacement in strain coordinates ...
Koh, T.-Y., Legras, B.
openaire   +4 more sources

Middle atmospheric water vapour and dynamics in the vicinity of the polar vortex during the Hygrosonde-2 campaign [PDF]

Atmospheric Chemistry and Physics, 2009
The Hygrosonde-2 campaign took place on 16 December 2001 at Esrange/Sweden (68° N, 21° E) with the aim to investigate the small scale distribution of water vapour in the middle atmosphere in the vicinity of the Arctic polar vortex.
S. Lossow, M. Khaplanov, J. Gumbel, J. Stegman, G. Witt, P. Dalin, S. Kirkwood, F. J. Schmidlin, K. H. Fricke, U. Blum   +9 more
doaj  

A multi-scale comparison of polar vortices on Earth, Mars, Titan, and Venus

地球与行星物理论评
Although previous studies have analyzed the unique structural characteristics of the polar vortices on Earth, Venus, Mars, and Titan, the understanding of the polar vortices on Venus and Titan is primarily based on small-scale case studies due to the ...
Zheng Sheng, Gangyao Wu, Jie Zhang, Xiaohua Yang   +3 more
doaj   +1 more source

A quasi-Lagrangian coordinate system based on high resolution tracer observations: implementation for the Antarctic polar vortex [PDF]

, 2008
In order to quantitatively analyse the chemical and dynamical evolution of the polar vortex it has proven extremely useful to work with coordinate systems that follow the vortex flow.
Ivanova, Elena V., Klein, Holger, Möbius, Tanja, Ravegnani, Fabrizio, Riediger, Oliver, Schmidt, Ulrich (Prof. Dr.), Sitnikov, Nikolay, Ulanovskii, Alexey, Volk, C.-Michael, Yushkov, Vladimir   +9 more
core  

Dynamics of a vortex dipole across a magnetic phase boundary in a spinor Bose-Einstein condensate

, 2014
Dynamics of a vortex dipole in a spin-1 Bose-Einstein condensate in which magnetic phases are spatially distributed is investigated. When a vortex dipole travels from the ferromagnetic phase to the polar phase, or vice versa, it penetrates the phase ...
Kaneda, Tomoya, Saito, Hiroki
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source