Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations
Over the past decades, the Arctic has experienced rapid warming and extensive loss of sea ice cover. These high-latitude changes have been accompanied by extreme weather events over the Arctic and mid-latitude regions (e.g. Scandinavian 2018 summer heat wave). Yet links between the Arctic sea ice co...
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ftdatacite:10.5281/zenodo.3564163 2023-05-15T14:36:03+02:00 Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations Levine, Xavier J. Cvijanovic, Ivana Montilla, Pablo Ortega Donat, Markus G. 2019 https://dx.doi.org/10.5281/zenodo.3564163 https://zenodo.org/record/3564163 unknown Zenodo https://zenodo.org/communities/applicate https://dx.doi.org/10.5281/zenodo.3564164 https://zenodo.org/communities/applicate Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Arctic sea ice, forced and unforced variability of climate and sea ice extent, PAMIP, APPLICATE, PRIMAVERA, CMIP6, EC-EARTH. Text Presentation article-journal ScholarlyArticle 2019 ftdatacite https://doi.org/10.5281/zenodo.3564163 https://doi.org/10.5281/zenodo.3564164 2021-11-05T12:55:41Z Over the past decades, the Arctic has experienced rapid warming and extensive loss of sea ice cover. These high-latitude changes have been accompanied by extreme weather events over the Arctic and mid-latitude regions (e.g. Scandinavian 2018 summer heat wave). Yet links between the Arctic sea ice cover changes and extreme weather events (droughts, floods, cold outbreaks, heatwaves, extreme snowfall), remain poorly understood. More generally, it is unclear whether Arctic sea ice variability contributes significantly to interannual variations in extreme weather events in mid- and high-latitude regions. Using an ensemble of EC-Earth coupled climate model simulations we explore the association of the seasonal-mean Arctic sea ice cover with extreme anomalies in the surface climate (on seasonal and intraseasonal timescales). We first assess these teleconnections in a set of pre-CMIP6 (H2020 PRIMAVERA) simulations in which sea ice cover evolves freely. Results are compared across different forcing boundary conditions (fixed present-day, historical and future scenarios), and horizontal spatial resolutions (1° vs 0.25° in ocean/atmosphere). Co-variability patterns of surface extreme climate with sea ice cover obtained from these different PRIMAVERA simulations are finally compared to a preliminary set of CMIP6 (PAMIP) simulations in which sea ice cover is prescribed and held invariant across years, allowing us to better establish causation in the climate system. Conference Object Arctic Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Arctic sea ice, forced and unforced variability of climate and sea ice extent, PAMIP, APPLICATE, PRIMAVERA, CMIP6, EC-EARTH. |
spellingShingle |
Arctic sea ice, forced and unforced variability of climate and sea ice extent, PAMIP, APPLICATE, PRIMAVERA, CMIP6, EC-EARTH. Levine, Xavier J. Cvijanovic, Ivana Montilla, Pablo Ortega Donat, Markus G. Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations |
topic_facet |
Arctic sea ice, forced and unforced variability of climate and sea ice extent, PAMIP, APPLICATE, PRIMAVERA, CMIP6, EC-EARTH. |
description |
Over the past decades, the Arctic has experienced rapid warming and extensive loss of sea ice cover. These high-latitude changes have been accompanied by extreme weather events over the Arctic and mid-latitude regions (e.g. Scandinavian 2018 summer heat wave). Yet links between the Arctic sea ice cover changes and extreme weather events (droughts, floods, cold outbreaks, heatwaves, extreme snowfall), remain poorly understood. More generally, it is unclear whether Arctic sea ice variability contributes significantly to interannual variations in extreme weather events in mid- and high-latitude regions. Using an ensemble of EC-Earth coupled climate model simulations we explore the association of the seasonal-mean Arctic sea ice cover with extreme anomalies in the surface climate (on seasonal and intraseasonal timescales). We first assess these teleconnections in a set of pre-CMIP6 (H2020 PRIMAVERA) simulations in which sea ice cover evolves freely. Results are compared across different forcing boundary conditions (fixed present-day, historical and future scenarios), and horizontal spatial resolutions (1° vs 0.25° in ocean/atmosphere). Co-variability patterns of surface extreme climate with sea ice cover obtained from these different PRIMAVERA simulations are finally compared to a preliminary set of CMIP6 (PAMIP) simulations in which sea ice cover is prescribed and held invariant across years, allowing us to better establish causation in the climate system. |
format |
Conference Object |
author |
Levine, Xavier J. Cvijanovic, Ivana Montilla, Pablo Ortega Donat, Markus G. |
author_facet |
Levine, Xavier J. Cvijanovic, Ivana Montilla, Pablo Ortega Donat, Markus G. |
author_sort |
Levine, Xavier J. |
title |
Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations |
title_short |
Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations |
title_full |
Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations |
title_fullStr |
Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations |
title_full_unstemmed |
Seasonal anomalies in Arctic sea ice and their association with Northern Hemisphere climate variability, on interannual timescales in EC-earth model simulations |
title_sort |
seasonal anomalies in arctic sea ice and their association with northern hemisphere climate variability, on interannual timescales in ec-earth model simulations |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://dx.doi.org/10.5281/zenodo.3564163 https://zenodo.org/record/3564163 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
https://zenodo.org/communities/applicate https://dx.doi.org/10.5281/zenodo.3564164 https://zenodo.org/communities/applicate |
op_rights |
Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.3564163 https://doi.org/10.5281/zenodo.3564164 |
_version_ |
1766308751469445120 |