Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions
The mechanisms underlying decadal variability in Arctic sea ice remain actively debated. Here, we ability in boreal biomass burning (BB) emissions strongly influences simulated Arctic sea ice on multidecadal time scales. In particular, we find that a strong acceleration in sea ice decline in the ear...
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Online Access: | https://doi.org/10.1126/sciadv.abo2405 |
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ftncar:oai:drupal-site.org:articles_25613 2024-04-14T08:06:19+00:00 Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions DeRepentigny, Patricia (author) Jahn, Alexandra (author) Holland, Marika M. (author) Kay, Jennifer E. (author) Fasullo, John (author) Lamarque, Jean-François (author) Tilmes, Simone (author) Hannay, Cécile (author) Mills, Michael J. (author) Bailey, David A. (author) Barrett, Andrew P. (author) 2022-07-29 https://doi.org/10.1126/sciadv.abo2405 en eng Science Advances--Sci. Adv.--2375-2548 Supplemental data of Global Carbon Project 2019--10.18160/gcp-2019 CESM2 40-70N Biomass Emissions Homogenization Sensitivity Tests--10.5065/7f7c-zw94 NCAR Command Language (NCL)--10.5065/D6WD3XH5 articles:25613 doi:10.1126/sciadv.abo2405 ark:/85065/d7r49vj8 Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2022 ftncar https://doi.org/10.1126/sciadv.abo2405 2024-03-21T18:00:26Z The mechanisms underlying decadal variability in Arctic sea ice remain actively debated. Here, we ability in boreal biomass burning (BB) emissions strongly influences simulated Arctic sea ice on multidecadal time scales. In particular, we find that a strong acceleration in sea ice decline in the early 21st century in the Community Earth System Model version 2 (CESM2) is related to increased variability in prescribed BB emissions in the sixth phase of the Coupled Model Intercomparison Project (CMIP6) through summertime aerosol-cloud interactions. Furthermore, we find that more than half of the reported improvement in sea ice sensitivity to CO2 emissions and global warming from CMIP5 to CMIP6 can be attributed to the increased BB variability, at least in the CESM. These results highlight a new kind of uncertainty that needs to be considered when incorporating new observational data into model forcing while also raising questions about the role of BB emissions on the observed Arctic sea ice loss. 1844590 1852977 AGS-1419571 Article in Journal/Newspaper Arctic Global warming Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Science Advances 8 30 |
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Open Polar |
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OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The mechanisms underlying decadal variability in Arctic sea ice remain actively debated. Here, we ability in boreal biomass burning (BB) emissions strongly influences simulated Arctic sea ice on multidecadal time scales. In particular, we find that a strong acceleration in sea ice decline in the early 21st century in the Community Earth System Model version 2 (CESM2) is related to increased variability in prescribed BB emissions in the sixth phase of the Coupled Model Intercomparison Project (CMIP6) through summertime aerosol-cloud interactions. Furthermore, we find that more than half of the reported improvement in sea ice sensitivity to CO2 emissions and global warming from CMIP5 to CMIP6 can be attributed to the increased BB variability, at least in the CESM. These results highlight a new kind of uncertainty that needs to be considered when incorporating new observational data into model forcing while also raising questions about the role of BB emissions on the observed Arctic sea ice loss. 1844590 1852977 AGS-1419571 |
author2 |
DeRepentigny, Patricia (author) Jahn, Alexandra (author) Holland, Marika M. (author) Kay, Jennifer E. (author) Fasullo, John (author) Lamarque, Jean-François (author) Tilmes, Simone (author) Hannay, Cécile (author) Mills, Michael J. (author) Bailey, David A. (author) Barrett, Andrew P. (author) |
format |
Article in Journal/Newspaper |
title |
Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions |
spellingShingle |
Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions |
title_short |
Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions |
title_full |
Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions |
title_fullStr |
Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions |
title_full_unstemmed |
Enhanced simulated early 21st century Arctic sea ice loss due to CMIP6 biomass burning emissions |
title_sort |
enhanced simulated early 21st century arctic sea ice loss due to cmip6 biomass burning emissions |
publishDate |
2022 |
url |
https://doi.org/10.1126/sciadv.abo2405 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming Sea ice |
genre_facet |
Arctic Global warming Sea ice |
op_relation |
Science Advances--Sci. Adv.--2375-2548 Supplemental data of Global Carbon Project 2019--10.18160/gcp-2019 CESM2 40-70N Biomass Emissions Homogenization Sensitivity Tests--10.5065/7f7c-zw94 NCAR Command Language (NCL)--10.5065/D6WD3XH5 articles:25613 doi:10.1126/sciadv.abo2405 ark:/85065/d7r49vj8 |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.1126/sciadv.abo2405 |
container_title |
Science Advances |
container_volume |
8 |
container_issue |
30 |
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1796303105933967360 |