Results 101 to 110 of about 668 (190)

Unifying the QBO, MJO Shallow‐to‐Deep Convection Transitions, and Mesoscale Convective Systems

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract This study investigates Madden‐Julian Oscillation (MJO) convective structures to better understand how the Quasi‐biennial Oscillation (QBO) impacts MJO propagation. We find that during the QBO easterly (QBOE) phase, MJO events exhibit convective features that are highly favorable for propagation.
Kai Huang, Chih‐Chieh‐Jack Chen, Mitchell Moncrieff, Jadwiga H. Richter   +3 more
wiley   +1 more source

Assessing Subseasonal Predictions of Stratosphere‐Troposphere Coupling of GraphCast

Journal of Geophysical Research: Atmospheres
Abstract The rapid development of artificial intelligence weather forecasting models (AIWFMs) has revolutionized weather prediction. GraphCast, a leading AIWFM, outperforms state‐of‐the‐art physics‐based numerical models at the surface and in the lower troposphere.
openaire   +1 more source

Rapid HCl Production From Chlorine Oxidation Sustains Coastal Atmospheric Chlorine Cycling

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Hydrogen chloride (HCl) is a major tropospheric reservoir of reactive chlorine. In coastal environments, it is thought to primarily originate from acid displacement of particulate chloride (Cl−). Here we demonstrate that chlorine radical oxidation of volatile organic compounds dominates HCl formation (∼64%) at a polluted coastal site with ...
Weihang Sun, Hengqing Shen, Xiaorui Chen, Yifan Jiang, Steven Poon, Tao Wang   +5 more
wiley   +1 more source

Analysis of the Charge Structure and Lightning Activity During a Severe Beijing Thunderstorm via an Innovative Balloon‐Borne 3D Electric Field Observation System

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We developed an innovative balloon‐borne observation system based on China's BeiDou sounding platform that integrates a three‐axis electric field sensor for in‐cloud measurements of thunderstorm electrification. On 13 May 2025, this system was deployed during a severe convective storm over Beijing. In combination with multisource observations,
Ye Tian, Wenbin Gao, Chenyi Shi, Yue Sun, Xuebo Fan, Lei Meng, YongTao Yu, LongBin Zhang, Chen Chang, Jiachun Yang, Jin Li   +10 more
wiley   +1 more source

From Magma to Atmosphere: Halogen Fluxes During Volcanic Eruptions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Volcanic eruptions release significant quantities of volatile elements into the atmosphere and stratosphere. Plinian eruptions are particularly efficient at dispersing these elements due to their large magma volumes and high eruption columns.
T. d’Augustin, H. Balcone‐Boissard, G. Boudon, E. Deloule, P. Burckel, J.‐C. Thouret, A. Belousov, M. Belousova, A. Duvernois, S. Bekki, M. Marchand, M. Bonifacie   +11 more
wiley   +1 more source

The effects of stratosphere-troposphere coupling on the decadal predictability of the climate system.

, 2013
The coupled ocean-atmosphere CMCC-CMS model is used to investigate the influence of the stratosphere on the decadal predictability. As part of the EU-funded COMBINE Project, a set of decadal prediction experiments are performed for the 1960-2005 period, following the CMIP5 protocol using historical radiative forcing conditions, followed by RCP4.5 ...
Miriam D'Errico (1, 2), Alessio Bellucci (1), Chiara Cagnazzo (3), Silvio Gualdi (1)   +4 more
openaire   +6 more sources

Benchmarking the Dynamic Modes of Stratosphere‐Troposphere Coupling in Northern Annular Modes (NAM) in CMIP6 Models

Geophysical Research Letters
The downward influence of extreme stratospheric events is typically described by the evolution of the Northern Annular Mode (NAM) across atmospheric levels. However, the dynamics and uncertainty in vertical coupling are not fully resolved.
Gang Chen, Xiuyuan Ding
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

Preconditioned Stratospheric Modulation on the Occurrence of Stratospheric Final Warmings

Geophysical Research Letters
Stratospheric Final Warmings (SFWs) are considered to have a distinct impact on the surface weather and stratospheric ozone. Most SFWs are predominantly wave‐driven, while previous studies generally focused on the effects of tropospheric anomalous wave ...
Pengkun Yang, Ming Bao, Xuejuan Ren
doaj   +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