Results 21 to 30 of about 693 (129)

An interactive stratospheric aerosol model intercomparison of solar geoengineering by stratospheric injection of SO₂ or accumulation-mode sulfuric acid aerosols [PDF]

Atmospheric Chemistry and Physics, 2022
Studies of stratospheric solar geoengineering have tended to focus on modification of the sulfuric acid aerosol layer, and almost all climate model experiments that mechanistically increase the sulfuric acid aerosol burden assume injection of SO2.
D. K. Weisenstein, D. K. Weisenstein, D. Visioni, H. Franke, U. Niemeier, S. Vattioni, G. Chiodo, T. Peter, D. W. Keith   +8 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

Climate system response to stratospheric sulfate aerosols: sensitivity to altitude of aerosol layer [PDF]

Earth System Dynamics, 2019
Reduction of surface temperatures of the planet by injecting sulfate aerosols in the stratosphere has been suggested as an option to reduce the amount of human-induced climate warming.
K.-P. S.-P. Krishnamohan, G. Bala, L. Cao, L. Duan, L. Duan, K. Caldeira   +5 more
doaj   +1 more source

Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble [PDF]

Atmospheric Chemistry and Physics, 2021
As part of the Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP), several climate modeling centers performed a coordinated pre-study experiment with interactive stratospheric aerosol models simulating the volcanic ...
M. Clyne, M. Clyne, J.-F. Lamarque, M. J. Mills, M. Khodri, W. Ball, W. Ball, W. Ball, S. Bekki, S. S. Dhomse, N. Lebas, G. Mann, G. Mann, L. Marshall, L. Marshall, U. Niemeier, V. Poulain, A. Robock, E. Rozanov, E. Rozanov, A. Schmidt, A. Schmidt, A. Stenke, T. Sukhodolov, C. Timmreck, M. Toohey, M. Toohey, F. Tummon, F. Tummon, D. Zanchettin, Y. Zhu, O. B. Toon, O. B. Toon   +32 more
doaj   +1 more source

Variability of the Aerosol Content in the Tropical Lower Stratosphere from 2013 to 2019: Evidence of Volcanic Eruption Impacts

Atmosphere, 2022
This paper quantifies the tropical stratospheric aerosol content as impacted by volcanic events over the 2013–2019 period. We use global model simulations by the Whole Atmosphere Community Climate Model (WACCM) which is part of the Community Earth System
Mariam Tidiga, Gwenaël Berthet, Fabrice Jégou, Corinna Kloss, Nelson Bègue, Jean-Paul Vernier, Jean-Baptiste Renard, Adriana Bossolasco, Lieven Clarisse, Ghassan Taha, Thierry Portafaix, Terry Deshler, Frank G. Wienhold, Sophie Godin-Beekmann, Guillaume Payen, Jean-Marc Metzger, Valentin Duflot, Nicolas Marquestaut   +17 more
doaj   +1 more source

Scaling turbulence drives the general circulation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source

Impact of stratospheric aerosol geoengineering implemented only in the winter hemispheres on the ITCZ and tropical monsoon regions

Environmental Research: Climate
Stratospheric aerosol geoengineering (SAG) has been proposed as a potential climate intervention strategy to counteract global warming. Previous studies have shown that year-round or summer/spring implementation of SAG in one hemisphere would shift the ...
Thejas Kallihosur, Govindasamy Bala
doaj   +1 more source

Extreme temperature and precipitation response to solar dimming and stratospheric aerosol geoengineering [PDF]

Atmospheric Chemistry and Physics, 2018
We examine extreme temperature and precipitation under two potential geoengineering methods forming part of the Geoengineering Model Intercomparison Project (GeoMIP).
D. Ji, S. Fang, C. L. Curry, C. L. Curry, H. Kashimura, S. Watanabe, J. N. S. Cole, A. Lenton, H. Muri, H. Muri, B. Kravitz, J. C. Moore, J. C. Moore, J. C. Moore   +13 more
doaj   +1 more source

Stratospheric Polar Vortex Exerts Different Controls on the Transport of Tropical and Mid‐Latitude Volcanic Aerosols

Geophysical Research Letters
Moderate volcanic eruptions and extreme wildfires in recent two decades have persistently perturbed global stratospheric aerosol loadings. Based on satellite observations and climate model simulations, we find that these events contribute to ∼67% of ...
Yifeng Peng, Wenshou Tian, Cheng‐Cheng Liu, Pengfei Yu   +3 more
doaj   +1 more source

Stratospheric aerosol formed by intense volcanism–sea interaction during the 2022 Hunga Ha'apai eruption [PDF]

Atmospheric Chemistry and Physics
The Hunga Tonga eruption on 15 January 2022 (HT-22) induced vigorous volcano–sea interaction. Here we study the stratospheric aerosol and water vapor resulting from the eruption using satellite-based instruments: the CALIOP lidar and the Microwave Limb ...
B. G. Martinsson, J. Friberg, M. K. Sporre   +2 more
doaj   +1 more source