Results 31 to 40 of about 693 (129)

Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 eruption cloud compared to in situ and satellite observations [PDF]

Atmospheric Chemistry and Physics, 2018
Volcanic eruptions impact climate through the injection of sulfur dioxide (SO2), which is oxidized to form sulfuric acid aerosol particles that can enhance the stratospheric aerosol optical depth (SAOD).
T. Lurton, T. Lurton, F. Jégou, G. Berthet, J.-B. Renard, L. Clarisse, A. Schmidt, A. Schmidt, C. Brogniez, T. J. Roberts   +9 more
doaj   +1 more source

Reduced Longwave Absorption of Magnesium Sulfate Aerosol as an Alternative to Sulfuric Acid for Stratospheric Aerosol Injection

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Aqueous sulfuric acid is the benchmark sulfate aerosol for stratospheric aerosol injection (SAI), but H2SO4 ${\mathrm{H}}_{2}{\text{SO}}_{4}$/H2 ${\mathrm{H}}_{2}$O aerosol absorbs strongly in the infrared, producing longwave warming that significantly offsets its shortwave cooling. Here, we evaluate magnesium sulfate (MgSO4 ${\text{MgSO}}_{4}$
A. Odelskii, S. Malashevich, V. Shahabadi, N. R. VanDerZwan, A. Bain, J. F. Davies, T. C. Preston   +6 more
wiley   +1 more source

Quantifying the Effectiveness of Multiple SAI Strategies Across Different Dimensions

Earth's Future, Volume 14, Issue 10, October 2026.
Abstract Stratospheric aerosol injection (SAI) modeling experiments are often designed to keep global mean surface air temperature (GMSAT) close to a reference target, such as early‐century SSP2‐4.5. However, meeting this target does not necessarily restore regional climates or the seasonal and spatial patterns of key variables.
Cindy Wang, Daniele Visioni, Walker Raymond Lee, Alistair Duffey, Christopher Robert Wentland, Lauren Wheeler, Benjamin Wagman, Samantha Turbeville, Shingo Watanabe, Matthew Henry   +9 more
wiley   +1 more source

Efficacy assessment of stratospheric aerosol scrubbing as a counter climate intervention strategy [PDF]

Atmospheric Chemistry and Physics
Stratospheric Aerosol Injection (SAI) has been proposed to counteract global warming. Countering SAI may prove attractive to actors who oppose deployment and methods have been suggested but not tested for efficacy.
A. C. Jones, J. M. Haywood, M. Henry, A. Duffey, A. Duffey   +4 more
doaj   +1 more source

Simulating Regional‐Scale Aerosol Radiative Effects of Wildfire Smoke Using a High‐Resolution Coupled Meteorology‐Chemistry Model: HRRR‐Chem

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract Wildfires are increasing in frequency and intensity, strongly influencing both regional air quality and the Earth's radiation budget via their aerosol emissions. Relying on an unparalleled observational data set from the 2019 NOAA/NASA FIREX‐AQ campaign, this study quantifies the direct radiative effects of two wildfires using the HRRR‐Chem ...
Minsu Choi, Ravan Ahmadov, J. L. Schnell, Johana Romero‐Alvarez, Sudheer Bhimireddy, Haiqin Li, Joshua P. Schwarz, Pedro Campunzano Jost, Hongyu Guo, Jose L. Jimenez, Pawan Gupta, Thomas F. Eck, Philippe Goloub, Olga Kalashnikova, Chuanyu Xu, Fangjun Li, R. Bradley Pierce, Georg A. Grell   +17 more
wiley   +1 more source

Microphysical Interactions Determine the Effectiveness of Solar Radiation Modification via Stratospheric Solid Particle Injection

Geophysical Research Letters
Recent studies have suggested that stratospheric aerosol injection (SAI) of solid particles for climate intervention could reduce stratospheric warming compared to injection of SO2.
S. Vattioni, S. K. Käslin, J. A. Dykema, L. Beiping, T. Sukhodolov, J. Sedlacek, F. N. Keutsch, T. Peter, G. Chiodo   +8 more
doaj   +1 more source

A fully coupled solid-particle microphysics scheme for stratospheric aerosol injections within the aerosol–chemistry–climate model SOCOL-AERv2 [PDF]

Geoscientific Model Development
Recent studies have suggested that injection of solid particles such as alumina and calcite particles for stratospheric aerosol injection (SAI) instead of sulfur-based injections could reduce some of the adverse side effects of SAI such as ozone ...
S. Vattioni, S. Vattioni, R. Weber, R. Weber, R. Weber, A. Feinberg, A. Feinberg, A. Feinberg, A. Stenke, A. Stenke, A. Stenke, J. A. Dykema, B. Luo, G. A. Kelesidis, G. A. Kelesidis, C. A. Bruun, T. Sukhodolov, F. N. Keutsch, F. N. Keutsch, F. N. Keutsch, T. Peter, G. Chiodo, G. Chiodo   +22 more
doaj   +1 more source

Impacts of Anthropogenic Aerosol‐Forced North Atlantic SST Variability on the Simulated Historical Global Warming

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Climate models with identical anthropogenic forcings simulate different historical warming, mainly because aerosol forcing is poorly constrained. The role of uncertainty in regional aerosol forcing, however, has not been systematically studied.
Harun A. Rashid
wiley   +1 more source

Stratospheric injection of solid particles reduces side effects on circulation and climate compared to SO2 injections

Environmental Research: Climate
Most research of stratospheric aerosol injection (SAI) for solar radiation modification has focused on injection of SO _2 . However, the resulting sulfuric acid aerosols lead to considerable absorption of terrestrial infrared radiation, resulting in ...
Fabrice Stefanetti, Sandro Vattioni, John A Dykema, Gabriel Chiodo, Jan Sedlacek, Frank N Keutsch, Timofei Sukhodolov   +6 more
doaj   +1 more source

Hemispherically symmetric strategies for stratospheric aerosol injection [PDF]

Earth System Dynamics
Stratospheric aerosol injection (SAI) comes with a wide range of possible design choices, such as the location and timing of the injection. Different stratospheric aerosol injection strategies can yield different climate responses; therefore ...
Y. Zhang, D. G. MacMartin, D. Visioni, E. M. Bednarz, E. M. Bednarz, E. M. Bednarz, B. Kravitz, B. Kravitz   +7 more
doaj   +1 more source