Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem
Equilibrium and transient climate sensitivity (ECS and TCS) are some of the most fundamental properties characterising the future climate. Progress in estimating climate sensitivity over the last three decades has been hampered by a large climate model spread of ECS and TCS estimates, and more recen...
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ftzenodo:oai:zenodo.org:4707302 2023-05-15T18:24:25+02:00 Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem Peter Kuma Frida Bender 2021-04-21 https://zenodo.org/record/4707302 https://doi.org/10.5281/zenodo.4707302 eng eng info:eu-repo/grantAgreement/EC/Horizon 2020 Framework Programme - Research and Innovation action/821205/ doi:10.5281/zenodo.4707301 https://zenodo.org/record/4707302 https://doi.org/10.5281/zenodo.4707302 oai:zenodo.org:4707302 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/conferencePoster poster 2021 ftzenodo https://doi.org/10.5281/zenodo.470730210.5281/zenodo.4707301 2023-03-10T23:06:10Z Equilibrium and transient climate sensitivity (ECS and TCS) are some of the most fundamental properties characterising the future climate. Progress in estimating climate sensitivity over the last three decades has been hampered by a large climate model spread of ECS and TCS estimates, and more recently by a large increase in ECS predicted by several models in the latest generation of the Climate Model Intercomparison Project 6 (CMIP6). Clouds have been identified as the major source of this uncertainty and the recent increase in estimated ECS. A "too few, too bright" model cloud problem has been found in several regions of the globe, including tropical latitudes and the Southern Ocean. Southern Ocean has also been a major focus of changes in model microphysics in an effort to simulate more realistic supercooled liquid clouds. Here, we focus on the too few, too bright problem in the Southern Ocean in CMIP6 models and its possible relation to climate sensitivity. We explore the possibility of applying new emergent constraints on climate sensitivity based on metrics of the too few, too bright problem. We use satellite and and ship-based observational datasets such as lidar and radiometer observations for constraining climate sensitivity and evaluation of clouds in this region across generations of CMIP models. Conference Object Southern Ocean Zenodo Southern Ocean |
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Equilibrium and transient climate sensitivity (ECS and TCS) are some of the most fundamental properties characterising the future climate. Progress in estimating climate sensitivity over the last three decades has been hampered by a large climate model spread of ECS and TCS estimates, and more recently by a large increase in ECS predicted by several models in the latest generation of the Climate Model Intercomparison Project 6 (CMIP6). Clouds have been identified as the major source of this uncertainty and the recent increase in estimated ECS. A "too few, too bright" model cloud problem has been found in several regions of the globe, including tropical latitudes and the Southern Ocean. Southern Ocean has also been a major focus of changes in model microphysics in an effort to simulate more realistic supercooled liquid clouds. Here, we focus on the too few, too bright problem in the Southern Ocean in CMIP6 models and its possible relation to climate sensitivity. We explore the possibility of applying new emergent constraints on climate sensitivity based on metrics of the too few, too bright problem. We use satellite and and ship-based observational datasets such as lidar and radiometer observations for constraining climate sensitivity and evaluation of clouds in this region across generations of CMIP models. |
format |
Conference Object |
author |
Peter Kuma Frida Bender |
spellingShingle |
Peter Kuma Frida Bender Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem |
author_facet |
Peter Kuma Frida Bender |
author_sort |
Peter Kuma |
title |
Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem |
title_short |
Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem |
title_full |
Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem |
title_fullStr |
Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem |
title_full_unstemmed |
Climate sensitivity and the Southern Ocean: the effect of the "too few, too bright" model cloud problem |
title_sort |
climate sensitivity and the southern ocean: the effect of the "too few, too bright" model cloud problem |
publishDate |
2021 |
url |
https://zenodo.org/record/4707302 https://doi.org/10.5281/zenodo.4707302 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
info:eu-repo/grantAgreement/EC/Horizon 2020 Framework Programme - Research and Innovation action/821205/ doi:10.5281/zenodo.4707301 https://zenodo.org/record/4707302 https://doi.org/10.5281/zenodo.4707302 oai:zenodo.org:4707302 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.470730210.5281/zenodo.4707301 |
_version_ |
1766204922663010304 |