Results 61 to 70 of about 945 (138)

Postfrontal Deep Convection Over the Southern Ocean and Orographic Precipitation Enhancement Over Tasmania

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The orographic precipitation enhancement (OPE) generated within wintertime post‐frontal air masses is a prominent climate feature of Tasmania. This study investigates a passage of a cold sector of a mid‐latitude cyclone over the Southern Ocean (SO) and Western Tasmania (WTAS) observed from 2100 UTC 11 July to 0300 UTC 13 July.
Artur Gevorgyan, Steven Siems, Yi Huang, Luis Ackermann, T. Alinejadtabrizi   +4 more
wiley   +1 more source

Observation of Polar Stratospheric Clouds down to the Mediterranean coast [PDF]

Atmospheric Chemistry and Physics, 2007
A Polar Stratospheric Cloud (PSC) was detected for the first time in January 2006 over Southern Europe after 25 years of systematic lidar observations.
P. Keckhut, Ch. David, M. Marchand, S. Bekki, J. Jumelet, A. Hauchecorne, M. Höpfner   +6 more
doaj  

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

Influence of Explicit Tropospheric VOC Chemistry on the Top‐Of‐Atmosphere Net Radiation Budget: Differences Between Two Preindustrial CESM2 Chemistry Configurations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The representation of volatile organic compound (VOC) chemistry in earth system models directly impacts aerosol formation. Previous work shows explicitly representing VOC chemistry produces significant impacts on simulated climate compared to an implicit “SOAG scheme” that prescribes a bulk gas‐phase precursor to secondary organic aerosol (SOA)
Noah A. Stanton, Neil F. Tandon
wiley   +1 more source

Interannual Variability of Mean Winds and the Semidiurnal Tide in the Antarctic Summer Mesosphere‐Lower Thermosphere

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Long‐term observations at southern polar latitudes in the summertime mesosphere–lower thermosphere (MLT) reveal persistent nonmigrating semidiurnal tides, with the zonal wavenumber‐1 (s $s$ = 1) component being particularly dominant. Using nearly two decades of meteor radar wind measurements (80–100 km) from Davis Station (East Antarctica) and
R. A. Vincent, J.‐H. Kim, C. Lee, G. Jee, D. J. Murphy, I. M. Reid   +5 more
wiley   +1 more source

Unprecedented Extreme Dust Storm Triggered by Stratosphere‐Troposphere Interactions

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract An unprecedented dust storm struck southern China in April 2025, affecting hundreds of millions of people in regions rarely impacted by dust storms and challenging existing understanding of lower‐latitude dust storms. Here, we show that polar stratospheric signals enabled this event by modulating tropospheric teleconnection, revealing an ...
Wenqi Zhang, Mei Chong, Huiwen Xiao, Shengkai Wang, Qiang Zhang, Xi Chen, Lin Wang   +6 more
wiley   +1 more source

Physics‐Aware AI‐Driven 4D Temperature Reconstruction With Enhanced Non‐Uniform Vertical Resolution in Near Space (20–80 km)

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Near‐space temperature is crucial for atmospheric dynamics and aerospace applications, yet data sets with refined vertical resolution remain scarce. We present the Atmospheric Spatio‐Temporal Reconstruction Network (AtmoST‐Net), which integrates high‐resolution SABER observations with dual‐source reanalysis, combining non‐uniform vertical ...
Huanwei Zhang, Yang He, Zheng Sheng
wiley   +1 more source

Opposite Trends in the Northern Hemisphere Stratosphere Between Mid‐Winter and Early Spring Linked to Surface Temperature Anomalies

Geophysical Research Letters
Trends in the coupled stratosphere‐troposphere system during the 1979–2022 period are investigated in the Northern Hemisphere using reanalysis datasets.
Gwendal Rivière, Fabio D’Andrea, Daniela I. V. Domeisen, Alice Portal   +3 more
doaj   +1 more source

Forecasting extreme stratospheric polar vortex events. [PDF]

Nat Commun, 2020
Gray LJ, Brown MJ, Knight J, Andrews M, Lu H, O'Reilly C, Anstey J.   +6 more
europepmc   +1 more source

Connections between low- and high- frequency variabilities of stratospheric northern annular mode and Arctic ozone depletion

Environmental Research Letters
Previous studies have demonstrated a dynamical linkage between the ozone and stratospheric polar vortex strength, but only a few have mentioned the persistence of the anomalous vortex.
Yueyue Yu, Yufeng Wu, Jiankai Zhang, Zhengfei Cui, Chunhua Shi, Jian Rao, Dong Guo, Xin Xia   +7 more
doaj   +1 more source