Results 71 to 80 of about 681 (182)

Stratosphere–Troposphere Coupling in a Relatively Simple AGCM: The Role of Eddies

Journal of Climate, 2004
The extratropical circulation response to cooling of the polar-winter stratosphere in a simple AGCM is investigated. The AGCM is a dry hydrostatic primitive equation model with zonally symmetric boundary conditions and analytically specified physics.
Kushner, Paul J., Polvani, Lorenzo M.
openaire   +3 more sources

Why April Stands Out: Monthly Impacts of Internal Variability on Arctic Amplification

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Observed Arctic amplification (AA), defined as the ratio of Arctic‐mean to global‐mean surface air temperature (SAT) trends, peaks in April, a feature not captured by climate models. Here, we quantify the impact of internal variability on Arctic‐mean SAT trends in March, April, and May from 1980 to 2022 using multiple approaches, including ...
Skylar Gale, Qiang Fu, Hailong Wang, Edward Blanchard‐Wrigglesworth, Muyin Wang, Ash Gilbert, Aodhan Sweeney, Stephen Po‐Chedley   +7 more
wiley   +1 more source

Reaction Rate Coefficients and Adduct Formation in the Cl Atom + (E)‐CF3CF2CH=CHCF2CF3 Reaction

International Journal of Chemical Kinetics, Volume 58, Issue 10, Page 871-880, October 2026.
ABSTRACT In this work, rate coefficients for the Cl‐atom + (E)‐CF3CF2CH═CHCF2CF3 (HFO‐153‐10mczz, F22E) gas‐phase reaction were measured as a function of temperature and pressure, k(243–323 K, 50–300 Torr), using a pulsed laser photolysis‐resonance fluorescence (PLP‐RF) technique.
Maria‐Areti I. Spanoudaki, Daniel Van Hoomissen, Vassileios C. Papadimitriou, James B. Burkholder   +3 more
wiley   +1 more source

Observed connection between the Madden–Julian oscillation and the upper tropospheric biennial oscillation

Environmental Research Letters
It has been found that the quasi-biennial oscillation (QBO) in the stratosphere have an important impact on the Madden Julian oscillation (MJO). In this study, we show that there is an obvious biennial oscillation in the tropical upper troposphere, which
Feiyang Wang, Tanlong Dai, Yuanyuan Han
doaj   +1 more source

A strong stratospheric harbinger for cold extremes: Weak polar vortex transition from displacement to split pattern

Weather and Climate Extremes
Weak stratospheric polar vortex (WSPV) events are dynamically connected with the variations in the tropospheric circulation, serving as crucial harbingers for surface cold extremes in the Northern Hemisphere.
Murong Zhang, Xiao-Yi Yang, Yipeng Huang
doaj   +1 more source

Mesoscale Modeling of Titan’s Shangri‐La Region: The Impact of Surface Properties on Winds

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The knowledge of Titan’s near‐surface atmosphere is sparse. The Huygens descent probe measured winds, and the multiple dune field observations and possible dust storms suggest active near‐surface dynamics. The Dragonfly rotorcraft lander will fly close to the surface in the Shangri‐La region, near the Huygens landing site, where complex dune ...
Maxence Lefèvre, Léa E. Bonnefoy, Aymeric Spiga, Bruno de Batz de Trenquelléon, Sébastien Lebonnois, Alexander G. Hayes   +5 more
wiley   +1 more source

On the surface impact of Arctic stratospheric ozone extremes

Environmental Research Letters, 2015
A comprehensive stratosphere-resolving atmospheric model, with interactive stratospheric ozone chemistry, coupled to ocean, sea ice and land components is used to explore the tropospheric and surface impacts of large springtime ozone anomalies in the ...
N Calvo, L M Polvani, S Solomon
doaj   +1 more source

Evaluation of the E3SM Version 3 Stratosphere Performance

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 10, October 2026.
Abstract The interactions between the stratosphere and the troposphere have significant impacts on human activities and Earth system variability. In the third release version of the low‐resolution Energy Exascale Earth System Model (E3SMv3), the representation of the stratosphere is improved through vertical grid refinement in the lower stratosphere ...
Wandi Yu, Walter Hannah, James J. Benedict, Qi Tang, Susannah Burrows, Mijeong Park, Jean‐Christophe Golaz, Karen Rosenlof, Sean Davis, Eric Ray, Jiwoo Lee   +10 more
wiley   +1 more source

Stratospheric Impacts on Weather Regimes Following the 2018 and 2019 Sudden Stratospheric Warmings

Geophysical Research Letters
Major disruptions of the stratospheric polar vortex can improve subseasonal forecast skill for surface climate, as negative North Atlantic Oscillation‐like (NAO−) states can follow sudden stratospheric warmings (SSWs).
Robert W. Lee, Andrew J. Charlton‐Perez, Simon H. Lee   +2 more
doaj   +1 more source

Construction of a Global Atmospheric Refractivity Model for Optical Wavelengths Based on Temporal Evolution Characteristics

Earth and Space Science, Volume 13, Issue 10, October 2026.
Abstract Atmospheric refractivity model accuracy is important for refraction correction, starlight refraction navigation, and related optoelectronic applications. To address the insufficient understanding of refractivity temporal evolution and the lack of clear criteria for selecting model temporal resolution, this study constructs a global four ...
Zhiyan Ding, Pengfei Wu, Wenyue Zhu
wiley   +1 more source