Ultrafast Arctic amplification and its governing mechanisms ...
Arctic amplification (AA), defined as the enhanced warming of the Arctic compared to the global average, is a robust feature of historical observations and simulations of future climate. Despite many studies investigating AA mechanisms, their relative importance remains contested. In this study, we...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000651805 http://hdl.handle.net/20.500.11850/651805 |
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ftdatacite:10.3929/ethz-b-000651805 2024-04-28T08:06:08+00:00 Ultrafast Arctic amplification and its governing mechanisms ... Janoski, Tyler P. Previdi, Michael Chiodo, Gabriel Smith, Karen L. Polvani, Lorenzo M. 2023 application/pdf https://dx.doi.org/10.3929/ethz-b-000651805 http://hdl.handle.net/20.500.11850/651805 en eng ETH Zurich arctic amplification sea ice heat transport turbulent heat flux radiative feedback article-journal Text ScholarlyArticle Journal Article 2023 ftdatacite https://doi.org/10.3929/ethz-b-000651805 2024-04-02T12:32:08Z Arctic amplification (AA), defined as the enhanced warming of the Arctic compared to the global average, is a robust feature of historical observations and simulations of future climate. Despite many studies investigating AA mechanisms, their relative importance remains contested. In this study, we examine the different timescales of these mechanisms to improve our understanding of AA's fundamental causes. We use the Community Earth System Model v1, Large Ensemble configuration (CESM-LE), to generate large ensembles of 2 years simulations subjected to an instantaneous quadrupling of CO2. We show that AA emerges almost immediately (within days) following CO2 increase and before any significant loss of Arctic sea ice has occurred. Through a detailed energy budget analysis of the atmospheric column, we determine the time-varying contributions of AA mechanisms over the simulation period. Additionally, we examine the dependence of these mechanisms on the season of CO2 quadrupling. We find that the surface heat ... : Environmental Research: Climate, 2 (3) ... Article in Journal/Newspaper Arctic Sea ice DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
topic |
arctic amplification sea ice heat transport turbulent heat flux radiative feedback |
spellingShingle |
arctic amplification sea ice heat transport turbulent heat flux radiative feedback Janoski, Tyler P. Previdi, Michael Chiodo, Gabriel Smith, Karen L. Polvani, Lorenzo M. Ultrafast Arctic amplification and its governing mechanisms ... |
topic_facet |
arctic amplification sea ice heat transport turbulent heat flux radiative feedback |
description |
Arctic amplification (AA), defined as the enhanced warming of the Arctic compared to the global average, is a robust feature of historical observations and simulations of future climate. Despite many studies investigating AA mechanisms, their relative importance remains contested. In this study, we examine the different timescales of these mechanisms to improve our understanding of AA's fundamental causes. We use the Community Earth System Model v1, Large Ensemble configuration (CESM-LE), to generate large ensembles of 2 years simulations subjected to an instantaneous quadrupling of CO2. We show that AA emerges almost immediately (within days) following CO2 increase and before any significant loss of Arctic sea ice has occurred. Through a detailed energy budget analysis of the atmospheric column, we determine the time-varying contributions of AA mechanisms over the simulation period. Additionally, we examine the dependence of these mechanisms on the season of CO2 quadrupling. We find that the surface heat ... : Environmental Research: Climate, 2 (3) ... |
format |
Article in Journal/Newspaper |
author |
Janoski, Tyler P. Previdi, Michael Chiodo, Gabriel Smith, Karen L. Polvani, Lorenzo M. |
author_facet |
Janoski, Tyler P. Previdi, Michael Chiodo, Gabriel Smith, Karen L. Polvani, Lorenzo M. |
author_sort |
Janoski, Tyler P. |
title |
Ultrafast Arctic amplification and its governing mechanisms ... |
title_short |
Ultrafast Arctic amplification and its governing mechanisms ... |
title_full |
Ultrafast Arctic amplification and its governing mechanisms ... |
title_fullStr |
Ultrafast Arctic amplification and its governing mechanisms ... |
title_full_unstemmed |
Ultrafast Arctic amplification and its governing mechanisms ... |
title_sort |
ultrafast arctic amplification and its governing mechanisms ... |
publisher |
ETH Zurich |
publishDate |
2023 |
url |
https://dx.doi.org/10.3929/ethz-b-000651805 http://hdl.handle.net/20.500.11850/651805 |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_doi |
https://doi.org/10.3929/ethz-b-000651805 |
_version_ |
1797575789567279104 |