Results 161 to 170 of about 103,038 (326)

Decadal Changes in Wintertime Frequency of Stratospheric Northern Annular Mode Events With Downward Propagation

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The surface climate impact of stratospheric polar vortex anomalies depends on their downward propagation (DP) into the troposphere. We find pronounced decadal variability in the winter frequency of stratospheric Northern Annular Mode (SNAM) events that exhibit DP (1951–2024).
Yang Liu   +5 more
wiley   +1 more source

Self‐Lofting Drives Tropospheric and Stratospheric Transport of Australian Wildfire Smoke to Antarctic Ice

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The 2019–2020 Australian New Year (ANY) wildfires injected vast amounts of aerosols and trace gases into the atmosphere. Previous studies focused on pyrocumulonimbus (pyroCb) activities that inject smoke directly into the upper troposphere. Our study shows that extensive aerosol plumes emitted into the lower troposphere during ANY wildfires ...
Jiawei Huang   +7 more
wiley   +1 more source

On the Utility of the Transient Climate Response

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The Transient Climate Response (TCR) is a metric of climate sensitivity relevant to present‐day climate change, but has been less studied than the Equilibrium Climate Sensitivity. Here, we emphasize the utility of the TCR by demonstrating that temperature and radiative forcing in transient scenarios are linearly related, where the ...
Nadir Jeevanjee   +4 more
wiley   +1 more source

Idealized modeling of anticyclonic plumes from wildfires and volcanic eruptions in the stratosphere

open access: gold, 2023
Aurélien Podglajen   +4 more
openalex   +1 more source

Observing Systems Simulation Experiments of Hypothetical Hourly Global Coverage of Microwave Satellite Radiances: Imbalance and Adaptive Observation Error Inflation

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract This study investigates the potential impacts of frequent global coverage of satellite microwave radiances using a global atmospheric data assimilation (DA) system. Observing Systems Simulation Experiments (OSSEs) were performed using the Local Ensemble Transform Kalman Filter with the Nonhydrostatic Icosahedral Atmospheric Model (NICAM ...
Rakesh Teja Konduru   +3 more
wiley   +1 more source

Observed and Modeled Changes in Boundary‐Layer and Surface‐Level Actinic Flux Due To Wildfire Smoke Plumes in the California Central Valley in Summer 2018

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Wildfire smoke is increasingly degrading U.S. air quality via the emission and transport of pollutants. Smoke's direct role as a pollutant is well‐documented; however, smoke also affects pollutant concentration indirectly by changing the shortwave actinic flux necessary for photochemical reactions.
K. A. Corwin   +5 more
wiley   +1 more source

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