Results 31 to 40 of about 20,831 (218)

The impact of MISR-derived injection height initialization on wildfire and volcanic plume dispersion in the HYSPLIT model [PDF]

Atmospheric Measurement Techniques, 2018
The dispersion of particles from wildfires, volcanic eruptions, dust storms, and other aerosol sources can affect many environmental factors downwind, including air quality.
C. J. Vernon, R. Bolt, T. Canty, R. A. Kahn, R. A. Kahn   +4 more
doaj   +1 more source

An Update on Engineering Issues Concerning Stratospheric Aerosol Injection for Geoengineering [PDF]

Environmental Research Communications, 2020
Abstract Solar Radiation Management (SRM) geoengineering is a proposed response to anthropogenic global warming (AGW). Stratospheric aerosol injection (SAI) is one proposed method, reliant on lofting material into the stratosphere.
Lockley, Andrew, MacMartin, Doug, Hunt, Hugh   +2 more
openaire   +2 more sources

SOA from limonene: role of NO₃ in its generation and degradation [PDF]

Atmospheric Chemistry and Physics, 2011
The formation of organic nitrates and secondary organic aerosol (SOA) were monitored during the NO3 + limonene reaction in the atmosphere simulation chamber SAPHIR at Research Center Jülich.
R. Tillmann, F. Rohrer, A. Mensah, H. Fuchs, H.-P. Dorn, W. P. Dubé, S. S. Brown, T. Brauers, A. W. Rollins, A. Kiendler-Scharr, J. L. Fry, A. Wahner, P. J. Wooldridge, R. C. Cohen   +13 more
doaj   +1 more source

Effects of intermittent aerosol forcing on the stratocumulus-to-cumulus transition [PDF]

Atmospheric Chemistry and Physics
We explore the role of intermittent aerosol forcing (e.g., injections associated with marine cloud brightening) in the stratocumulus-to-cumulus transition (SCT).
P. Prabhakaran, P. Prabhakaran, F. Hoffmann, G. Feingold   +3 more
doaj   +1 more source

The Potential Environmental and Climate Impacts of Stratospheric Aerosol Injection: A Review

Environmental Science: Atmospheres, 2023
This article reviews scientific evidence for the potential environmental impacts of stratospheric aerosol injection, a form of solar radiation geoengineering.
Han N. Huynh, V. Faye McNeill
openaire   +1 more source

Aerosol delivery, but not intramuscular injection, of adenovirus-vectored tuberculosis vaccine induces respiratory-mucosal immunity in humans

JCI Insight, 2022
Background Adenovirus-vectored (Ad-vectored) vaccines are typically administered via i.m. injection to humans and are incapable of inducing respiratory mucosal immunity.
Mangalakumari Jeyanathan, Dominik K. Fritz, Sam Afkhami, Emilio Aguirre, Karen J. Howie, Anna Zganiacz, Anna Dvorkin-Gheva, Michael R. Thompson, Richard F. Silver, Ruth P. Cusack, Brian D. Lichty, Paul M. O’Byrne, Martin Kolb, Maria Fe C. Medina, Myrna B. Dolovich, Imran Satia, Gail M. Gauvreau, Zhou Xing, Fiona Smaill   +18 more
doaj   +1 more source

Differences in the quasi-biennial oscillation response to stratospheric aerosol modification depending on injection strategy and species [PDF]

Atmospheric Chemistry and Physics, 2021
A known adverse side effect of stratospheric aerosol modification (SAM) is the alteration of the quasi-biennial oscillation (QBO), which is caused by the stratospheric heating associated with an artificial aerosol layer. Multiple studies found the QBO to
H. Franke, H. Franke, U. Niemeier, D. Visioni   +3 more
doaj   +1 more source

Uncertainties of SAI efficiency and impacts depending on the complexity of the aerosol microphysical model [PDF]

Atmospheric Chemistry and Physics
Significant differences exist between Earth System Models in simulating the efficiency of stratospheric aerosol injection (SAI) experiments, particularly in terms of aerosol burden, radiative forcing, and impacts, such as tropical lower stratospheric ...
S. Tilmes, D. Visioni, I. Quaglia, Y. Zhu, Y. Zhu, C. G. Bardeen, F. Vitt, P. Yu   +7 more
doaj   +1 more source

Record-breaking aerosol levels explained by smoke injection into the stratosphere

Science, 2021
Smoke alarm Intense, widespread bushfires in Australia injected huge amounts of smoke into the stratosphere in 2020. Hirsch and Koren found that this smoke caused record-breaking levels of aerosols over the Southern Hemisphere, as much as that from a moderate volcanic eruption.
Hirsch, Eitan, Koren, Ilan
openaire   +2 more sources

Unintended consequences of atmospheric injection of sulphate aerosols. [PDF]

, 2010
Most climate scientists believe that climate geoengineering is best considered as a potential complement to the mitigation of CO{sub 2} emissions, rather than as an alternative to it. Strong mitigation could achieve the equivalent of up to -4Wm{sup -2} radiative forcing on the century timescale, relative to a worst case scenario for rising CO{sub 2 ...
Brady, Patrick Vane, Kobos, Peter Holmes, Goldstein, Barry   +2 more
openaire   +2 more sources