Results 51 to 60 of about 516,711 (190)

Observation of mesospheric air inside the arctic stratospheric polar vortex in early 2003 [PDF]

, 2005
During several balloon flights inside the Arctic polar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere.
Levin, Ingeborg, M. Pirre, Wetzel, G., I. Levin, T. Wetter, Levin, I., Schmidt, Ulrich (Prof. Dr.), Wetter, Thomas, Oelhaf, Hermann, Bönisch, Harald, Engel, A., Schmidt, U., Huret, Nathalie, Bönisch, H., N. Huret, Pirre, Michel, Oelhaf, H., H. Oelhaf, Schmidt, Ulrich, Reddmann, Thomas, Möbius, Tanja, K. Grunow, G. Wetzel, U. Schmidt, Wetter, T., Engel, Andreas, Haase, Hans-Peter, Grunow, Katja, H. Bönisch, A. Engel, T. Reddmann, Reddmann, T., H.-P. Haase, Möbius, T., Haase, H.-P., Wetzel, Gerald, Grunow, K., T. Möbius   +37 more
core   +2 more sources

Northern winter stratospheric temperature and ozone responses to ENSO inferred from an ensemble of Chemistry Climate Models [PDF]

, 2009
The connection between the El Ni˜no Southern Oscillation (ENSO) and the Northern polar stratosphere has been established from observations and atmospheric modeling. Here a systematic inter-comparison of the sensitivity of the modeled stratosphere to ENSO
H. Struthers, Calvo, Natalia, Calvo Fernández, Natalia, Garny, Hella, E. Manzini, C. Cagnazzo, Douglass, A.R., M. Dameris, Chipperfield, Martyn P., Manzini, E. ; https://orcid.org/, Calvo, N., N. Calvo, Gettelman, A., Stenke, A., Akiyoshi, Hideharu, Garny, H., Deushi, M., Shepherd, Theodore G., M. Deushi, Giorgetta, M. A., Deushi, Makoto, D. Plummer, Giorgetta, Marco, Douglass, Anne, K. Shibata, H. Garny, E. Rozanov, Plummer, David, T. G. Shepherd, Akiyoshi, H., Manzini, E., Plummer, D.A., Struthers, Hamish, Chipperfield, M.P., Giorgetta, M.A., A. Douglass, M. A. Giorgetta, Manzini, Elisa, Shepherd, T., Dameris, Martin, Chipperfield, M., Douglass, A., M. Chipperfield, Bekki, Slimane, Tian, Wenshou, Giorgetta, M., Plummer, D., Tian, W., Dameris, M., Cagnazzo, C., Stenke, Andrea, H. Akiyoshi, Bekki, S., Cagnazzo, Chiara, Rozanov, Eugene, Gettelman, Andrew, A. Stenke, A. M. Fischer, Stenke, Andrea; id_orcid, W. Tian, Shibata, Kiyotaka, Shibata, K., Struthers, H., S. Bekki, Fischer, A. M., Fischer, A.M., Shepherd, T. G., Shepherd, T.G., Fischer, A., A. Gettelman, Rozanov, E.   +70 more
core   +2 more sources

A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming [PDF]

, 2023
This study investigates the response of the semidiurnal tide (SDT) to the 2013 major sudden stratospheric warming (SSW) event using meteor radar wind observations and mechanistic tidal model simulations.
Hibbins, Robert, Peter Brown, Stober, Gunter, Espy, Patrick, Jacobi, Christoph, Kero, Johan, Brown, Peter, Christoph Jacobi, Gunter Stober, Robert Hibbins, Willem E. van Caspel, Patrick Espy, Johan Kero, van Caspel, Willem E.   +13 more
core   +2 more sources

Arctic Stratosphere Dynamical Processes in the Winter 2021–2022

Atmosphere, 2022
The Arctic stratosphere winter season of 2021–2022 was characterized by a stable, cold stratospheric polar vortex with a volume of polar stratospheric clouds (PSC) close to the maximum values since 1980, before the beginning of minor sudden stratospheric
Pavel N. Vargin, Andrey V. Koval, Vladimir V. Guryanov   +2 more
doaj   +1 more source

How Sudden Stratospheric Warming Affects the Whole Atmosphere [PDF]

Eos, 2018
High above Earth’s surface, air temperatures occasionally increase suddenly, producing widespread effects on weather, air chemistry, and telecommunications.
Pedatella, N., Chau, J., Schmidt, H., Goncharenko, L., Stolle, C., Hocke, K., Harvey, V., Funke, B., Siddiqui, T.   +8 more
openaire   +4 more sources

Influence of January 2009 stratospheric warming on HF radio wave propagation in the low-latitude ionosphere

Solar-Terrestrial Physics, 2016
We have considered the influence of the January 23–27, 2009 sudden stratospheric warming (SSW) event on HF radio wave propagation in the equatorial ionosphere. This event took place during extremely low solar and geomagnetic activity.
Kotova D.S., Klimenko M.V., Klimenko V.V., Zakharov V.E., Bessarab F.S., Korenkov Yu.N.   +5 more
doaj   +1 more source

A vortex dynamics perspective on stratospheric sudden warmings [PDF]

, 2009
A vortex dynamics approach is used to study the underlying mechanisms leading to polar vortex breakdown during stratospheric sudden warmings (SSWs).
Matthewman, N.J.
core  

A comparative case study of low-latitude ionosphere–thermosphere responses to successive wave-1-dominant and wave-2-dominant sudden stratospheric warming events in 2022 using the ICON and GOLD missions

Earth and Planetary Physics
Previous studies have demonstrated that sudden stratospheric warming (SSW) events can have a substantial impact on the Earth’s ionosphere–thermosphere (IT) system.
ManYu Zhang, Jing Liu, MaoSheng He, XuGuang Cai, Quan Gan, YuSong Qin, ShuHan Li   +6 more
doaj   +1 more source

Enhanced stratosphere-troposphere and tropics-Arctic couplings in the 2023/24 winter

Communications Earth & Environment
The stratosphere-troposphere and the tropics-Arctic couplings were intermittently enhanced in the 2023/24 winter. Here we used ERA5 reanalysis data and found that due to the amplification of planetary wavenumber 1 and 2 pulses, three displacement-type ...
Lu Qian, Jian Rao, Rongcai Ren, Chunhua Shi, Siming Liu   +4 more
doaj   +1 more source

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