Articles | Volume 18, issue 10 
            
                
                    
            
            
            https://doi.org/10.5194/acp-18-7669-2018
                    © Author(s) 2018. This work is distributed under 
the Creative Commons Attribution 4.0 License.
                the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-7669-2018
                    © Author(s) 2018. This work is distributed under 
the Creative Commons Attribution 4.0 License.
                the Creative Commons Attribution 4.0 License.
Strong impacts on aerosol indirect effects from historical oxidant changes
Inger Helene Hafsahl Karset
CORRESPONDING AUTHOR
                                            
                                    
                                            University of Oslo, Department of Geosciences, Section for Meteorology and Oceanography, Oslo, Norway
                                        
                                    Terje Koren Berntsen
                                            University of Oslo, Department of Geosciences, Section for Meteorology and Oceanography, Oslo, Norway
                                        
                                    
                                            CICERO Center for International Climate Research, Oslo, Norway
                                        
                                    Trude Storelvmo
                                            University of Oslo, Department of Geosciences, Section for Meteorology and Oceanography, Oslo, Norway
                                        
                                    Kari Alterskjær
                                            CICERO Center for International Climate Research, Oslo, Norway
                                        
                                    Alf Grini
                                            Norwegian Meteorological Institute, Oslo, Norway
                                        
                                    Dirk Olivié
                                            Norwegian Meteorological Institute, Oslo, Norway
                                        
                                    Alf Kirkevåg
                                            Norwegian Meteorological Institute, Oslo, Norway
                                        
                                    Øyvind Seland
                                            Norwegian Meteorological Institute, Oslo, Norway
                                        
                                    Trond Iversen
                                            Norwegian Meteorological Institute, Oslo, Norway
                                        
                                    Michael Schulz
                                            Norwegian Meteorological Institute, Oslo, Norway
                                        
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- Exploring Impacts of Size‐Dependent Evaporation and Entrainment in a Global Model I. Karset et al. 10.1029/2019JD031817
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- Large difference in aerosol radiative effects from BVOC-SOA treatment in three Earth system models M. Sporre et al. 10.5194/acp-20-8953-2020
- Tropospheric ozone in CMIP6 simulations P. Griffiths et al. 10.5194/acp-21-4187-2021
- Evaluation of SO2, SO42− and an updated SO2 dry deposition parameterization in the United Kingdom Earth System Model C. Hardacre et al. 10.5194/acp-21-18465-2021
- Future tropospheric ozone budget and distribution over east Asia under a net-zero scenario X. Hou et al. 10.5194/acp-23-15395-2023
- Multidecadal increases in global tropospheric ozone derived from ozonesonde and surface site observations: can models reproduce ozone trends? A. Christiansen et al. 10.5194/acp-22-14751-2022
- On the Changing Role of the Stratosphere on the Tropospheric Ozone Budget: 1979–2010 P. Griffiths et al. 10.1029/2019GL086901
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- Atmospheric isoprene measurements reveal larger-than-expected Southern Ocean emissions V. Ferracci et al. 10.1038/s41467-024-46744-4
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- Olfaction in the Anthropocene: NO 3 negatively affects floral scent and nocturnal pollination J. Chan et al. 10.1126/science.adi0858
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- Description and evaluation of aerosol in UKESM1 and HadGEM3-GC3.1 CMIP6 historical simulations J. Mulcahy et al. 10.5194/gmd-13-6383-2020
- Year-round measurement of atmospheric volatile organic compounds using sequential sampling in Dronning Maud Land, East-Antarctica P. Van Overmeiren et al. 10.1016/j.atmosenv.2023.120074
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Saved (final revised paper)
Latest update: 29 Oct 2025
Short summary
                    This study highlights the role of oxidants in modeling of the preindustrial-to-present-day aerosol indirect effects. We argue that the aerosol precursor gases should be exposed to oxidants of its era to get a more correct representation of secondary aerosol formation. Our global model simulations show that the total aerosol indirect effect changes from −1.32 to −1.07 W m−2 when the precursor gases in the preindustrial simulation are exposed to preindustrial instead of present-day oxidants.
                    This study highlights the role of oxidants in modeling of the preindustrial-to-present-day...
                    
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