Articles | Volume 20, issue 21
https://doi.org/10.5194/acp-20-13355-2020
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the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-20-13355-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Nov 2020
Research article |
| 11 Nov 2020
| 11 Nov 2020
Evaluation of climate model aerosol trends with ground-based observations over the last 2 decades – an AeroCom and CMIP6 analysis
Research Department, Norwegian Meteorological Institute, Oslo, Norway
Jonas Gliß
Research Department, Norwegian Meteorological Institute, Oslo, Norway
Michael Schulz
Research Department, Norwegian Meteorological Institute, Oslo, Norway
Wenche Aas
Atmosphere and Climate Department, NILU, Norwegian Institute for Air Research, Kjeller, Norway
Elisabeth Andrews
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
Huisheng Bian
Joint Center for Earth Systems Technology, University of Maryland, Baltimore County (UMBC), Baltimore, Maryland, USA
Mian Chin
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Paul Ginoux
Geophysical Fluid Dynamics Laboratory, NOAA, Princeton, New Jersey, USA
Jenny Hand
Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, Colorado, USA
Brent Holben
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Hua Zhang
Laboratory for Climate Studies, National Climate Center,
China Meteorological Administration, Beijing, China
Zak Kipling
European Centre for Medium-Range Weather Forecasts, Reading, UK
Alf Kirkevåg
Research Department, Norwegian Meteorological Institute, Oslo, Norway
Paolo Laj
Institute for Geosciences and Environmental Research, Université Grenoble Alpes, CNRS, IRD, Grenoble INP, Grenoble, France
Thibault Lurton
Met Office Hadley Centre, Exeter, UK
Gunnar Myhre
CICERO Center for International Climate and Environmental Research, Oslo, Norway
David Neubauer
Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
Dirk Olivié
Research Department, Norwegian Meteorological Institute, Oslo, Norway
Knut von Salzen
Environment and Climate Change Canada, Victoria, BC, Canada
Ragnhild Bieltvedt Skeie
CICERO Center for International Climate and Environmental Research, Oslo, Norway
Toshihiko Takemura
Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, Japan
Simone Tilmes
National Center for Atmospheric Research (NCAR), Boulder, Colorado, USA
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Latest update: 31 Oct 2025
Short summary
We present a multiparameter analysis of the aerosol trends over the last 2 decades in the different regions of the world. In most of the regions, ground-based observations show a decrease in aerosol content in both the total atmospheric column and at the surface. The use of climate models, assessed against these observations, reveals however an increase in the total aerosol load, which is not seen with the sole use of observation due to partial coverage in space and time.
We present a multiparameter analysis of the aerosol trends over the last 2 decades in the...
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