19012 7 102681 2 313573 document 102681 Geophysical Research Letters - 2023 - Fiedler.pdf application/pdf 17d61d3ee08fc954b06d813dd0aa35f3 MD5 7338540 2023-08-17 07:16:41 https://pure.iiasa.ac.at/id/eprint/19012/1/Geophysical%20Research%20Letters%20-%202023%20-%20Fiedler.pdf 19012 1 1 application/pdf text en public cc_by_nc_4
Geophysical Research Letters - 2023 - Fiedler.pdf
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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/102681 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/102681 http://eprints.org/relation/ismediumThumbnailVersionOf https://pure.iiasa.ac.at/id/document/102681 102686 2 313583 document 102686 small.jpg image/png 103edc7047370759e74f7ac5c6c13916 MD5 2038 2023-08-17 07:26:52 https://pure.iiasa.ac.at/id/eprint/19012/6/small.jpg 19012 6 6 image/png other Thumbnails conversion from text to thumbnail_small en public
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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/102681 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/102681 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/102681 archive 353 disk0/00/01/90/12 2023-08-17 07:20:44 2024-09-09 13:00:17 2023-08-17 07:20:44 article show Fiedler S. van Noije T. Smith C. 9291 0000-0003-0599-4633 Boucher O. Dufresne J.‐L. Kirkevåg A. Olivié D. Pinto R. Reerink T. Sima A. Schulz M. Historical Changes and Reasons for Model Differences in Anthropogenic Aerosol Forcing in CMIP6 pub ECE IACC aerosol; anthropogenic perturbations; climate model; CMIP6; historical trends; radiative forcing The Radiative Forcing Model Intercomparison Project (RFMIP) allows estimates of effective radiative forcing (ERF) in the Coupled Model Intercomparison Project phase six (CMIP6). We analyze the RFMIP output, including the new experiments from models that use the same parameterization for anthropogenic aerosols (RFMIP-SpAer), to characterize and better understand model differences in aerosol ERF. We find little changes in the aerosol ERF for 1970–2014 in the CMIP6 multi-model mean, which implies greenhouse gases primarily explain the positive trend in the total anthropogenic ERF. Cloud-mediated effects dominate the present-day aerosol ERF in most models. The results highlight a regional increase in marine cloudiness due to aerosols, despite suppressed cloud lifetime effects in that RFMIP-SpAer experiment. Negative cloud-mediated effects mask positive direct effects in many models, which arise from strong anthropogenic aerosol absorption. The findings suggest opportunities to better constrain simulated ERF by revisiting the optical properties and long-range transport of aerosols. 2023-08-16 published American Geophysical Union doi:10.1029/2023GL104848 3162 public Geophysical Research Letters 50 15 e2023GL104848 TRUE 00948276 Constrained aerosol forcing for improved climate projections (FORCeS, H2020 821205) yes info:eu-repo/grantAgreement/EC/H2020/821205/EU//FORCeS info:eu-repo/semantics/article info:eu-repo/semantics/openAccess