Modeling the winter heat conduction through the sea ice system during MOSAiC
Models struggle to accurately simulate observed sea ice thickness changes, which could be partially due to inadequate representation of thermodynamic processes. We analyzed co-located winter observations of the Arctic sea ice from the Multidisciplinary Drifting Observatory for the Study of the Arcti...
Published in: | Geophysical Research Letters |
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Language: | English |
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2024
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Online Access: | https://doi.org/10.1029/2023GL106760 |
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ftncar:oai:drupal-site.org:articles_27163 2024-06-23T07:49:56+00:00 Modeling the winter heat conduction through the sea ice system during MOSAiC Zampieri, Lorenzo (author) Clemens‐Sewall, David (author) Sledd, Anne (author) Hutter, Nils (author) Holland, Marika (author) 2024-04-28 https://doi.org/10.1029/2023GL106760 en eng Geophysical Research Letters--Geophysical Research Letters--0094-8276--1944-8007 articles:27163 doi:10.1029/2023GL106760 ark:/85065/d7sx6jdv Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2024 ftncar https://doi.org/10.1029/2023GL106760 2024-05-27T14:15:41Z Models struggle to accurately simulate observed sea ice thickness changes, which could be partially due to inadequate representation of thermodynamic processes. We analyzed co-located winter observations of the Arctic sea ice from the Multidisciplinary Drifting Observatory for the Study of the Arctic Climate for evaluating and improving thermodynamic processes in sea ice models, aiming to enable more accurate predictions of the warming climate system. We model the sea ice and snow heat conduction for observed transects forced by realistic boundary conditions to understand the impact of the non-resolved meter-scale snow and sea ice thickness heterogeneity on horizontal heat conduction. Neglecting horizontal processes causes underestimating the conductive heat flux of 10% or more. Furthermore, comparing model results to independent temperature observations reveals a similar to 5 K surface temperature overestimation over ice thinner than 1 m, attributed to shortcomings in parameterizing surface turbulent and radiative fluxes rather than the conduction. Assessing the model deficiencies and parameterizing these unresolved processes is required for improved sea ice representation. 2138788 Article in Journal/Newspaper Arctic Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Geophysical Research Letters 51 8 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Models struggle to accurately simulate observed sea ice thickness changes, which could be partially due to inadequate representation of thermodynamic processes. We analyzed co-located winter observations of the Arctic sea ice from the Multidisciplinary Drifting Observatory for the Study of the Arctic Climate for evaluating and improving thermodynamic processes in sea ice models, aiming to enable more accurate predictions of the warming climate system. We model the sea ice and snow heat conduction for observed transects forced by realistic boundary conditions to understand the impact of the non-resolved meter-scale snow and sea ice thickness heterogeneity on horizontal heat conduction. Neglecting horizontal processes causes underestimating the conductive heat flux of 10% or more. Furthermore, comparing model results to independent temperature observations reveals a similar to 5 K surface temperature overestimation over ice thinner than 1 m, attributed to shortcomings in parameterizing surface turbulent and radiative fluxes rather than the conduction. Assessing the model deficiencies and parameterizing these unresolved processes is required for improved sea ice representation. 2138788 |
author2 |
Zampieri, Lorenzo (author) Clemens‐Sewall, David (author) Sledd, Anne (author) Hutter, Nils (author) Holland, Marika (author) |
format |
Article in Journal/Newspaper |
title |
Modeling the winter heat conduction through the sea ice system during MOSAiC |
spellingShingle |
Modeling the winter heat conduction through the sea ice system during MOSAiC |
title_short |
Modeling the winter heat conduction through the sea ice system during MOSAiC |
title_full |
Modeling the winter heat conduction through the sea ice system during MOSAiC |
title_fullStr |
Modeling the winter heat conduction through the sea ice system during MOSAiC |
title_full_unstemmed |
Modeling the winter heat conduction through the sea ice system during MOSAiC |
title_sort |
modeling the winter heat conduction through the sea ice system during mosaic |
publishDate |
2024 |
url |
https://doi.org/10.1029/2023GL106760 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
Geophysical Research Letters--Geophysical Research Letters--0094-8276--1944-8007 articles:27163 doi:10.1029/2023GL106760 ark:/85065/d7sx6jdv |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.1029/2023GL106760 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
8 |
_version_ |
1802640659251724288 |