Myhre, G, Aas, W, Cherian, R et al. (19 more authors) (2017) Multi-model simulations of aerosol and ozone radiative forcing due to anthropogenic emission changes during the period 1990–2015. Atmospheric Chemistry and Physics, 17 (4). pp. 2709-2720. ISSN 1680-7316
Abstract
Over the past few decades, the geographical distribution of emissions of substances that alter the atmospheric energy balance has changed due to economic growth and air pollution regulations. Here, we show the resulting changes to aerosol and ozone abundances and their radiative forcing using recently updated emission data for the period 1990–2015, as simulated by seven global atmospheric composition models. The models broadly reproduce large-scale changes in surface aerosol and ozone based on observations (e.g. −1 to −3 % yr−1 in aerosols over the USA and Europe). The global mean radiative forcing due to ozone and aerosol changes over the 1990–2015 period increased by +0.17 ± 0.08 W m−2, with approximately one-third due to ozone. This increase is more strongly positive than that reported in IPCC AR5. The main reasons for the increased positive radiative forcing of aerosols over this period are the substantial reduction of global mean SO2 emissions, which is stronger in the new emission inventory compared to that used in the IPCC analysis, and higher black carbon emissions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds) |
Funding Information: | Funder Grant number Royal Society WRM110067 US Department of Energy Project 1552083 NERC NE/M017176/1 NERC NE/N006038/1 ECMRWF European Centre Medium No ref number |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Feb 2017 10:49 |
Last Modified: | 05 Oct 2017 16:10 |
Published Version: | https://doi.org/10.5194/acp-17-2709-2017 |
Status: | Published |
Publisher: | European Geosciences Union (EGU) |
Identification Number: | 10.5194/acp-17-2709-2017 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:112941 |