The influence of snow on sea ice as assessed from simulations of CESM2
We assess the influence of snow on sea ice in experiments using the Community Earth System Model version 2 for a preindustrial and a 2xCO2 climate state. In the preindustrial climate, we find that increasing simulated snow accumulation on sea ice results in thicker sea ice and a cooler climate in bo...
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Online Access: | https://doi.org/10.5194/tc-15-4981-2021 |
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ftncar:oai:drupal-site.org:articles_24815 2024-04-14T08:00:28+00:00 The influence of snow on sea ice as assessed from simulations of CESM2 Holland, Marika M. (author) Clemens-Sewall, David (author) Landrum, Laura (author) Light, Bonnie (author) Perovich, Donald (author) Polashenski, Chris (author) Smith, Madison (author) Webster, Melinda (author) 2021-10-28 https://doi.org/10.5194/tc-15-4981-2021 en eng The Cryosphere--The Cryosphere--1994-0424 marikaholland/Snow_On_Ice_TC_2021: Snow on ice data--10.5281/zenodo.5572930 Sea Ice Index, Version 3--10.7265/N5K072F8 articles:24815 doi:10.5194/tc-15-4981-2021 ark:/85065/d7tf01ss Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2021 ftncar https://doi.org/10.5194/tc-15-4981-2021 2024-03-21T18:00:26Z We assess the influence of snow on sea ice in experiments using the Community Earth System Model version 2 for a preindustrial and a 2xCO2 climate state. In the preindustrial climate, we find that increasing simulated snow accumulation on sea ice results in thicker sea ice and a cooler climate in both hemispheres. The sea ice mass budget response differs fundamentally between the two hemispheres. In the Arctic, increasing snow results in a decrease in both congelation sea ice growth and surface sea ice melt due to the snow's impact on conductive heat transfer and albedo, respectively. These factors dominate in regions of perennial ice but have a smaller influence in seasonal ice areas. Overall, the mass budget changes lead to a reduced amplitude in the annual cycle of ice thickness. In the Antarctic, with increasing snow, ice growth increases due to snow-ice formation and is balanced by larger basal ice melt, which primarily occurs in regions of seasonal ice. In a warmer 2xCO2 climate, the Arctic sea ice sensitivity to snow depth is small and reduced relative to that of the preindustrial climate. In contrast, in the Antarctic, the sensitivity to snow on sea ice in the 2xCO2 climate is qualitatively similar to the sensitivity in the preindustrial climate. These results underscore the importance of accurately representing snow accumulation on sea ice in coupled Earth system models due to its impact on a number of competing processes and feedbacks that affect the melt and growth of sea ice. 1724748 Article in Journal/Newspaper albedo Antarc* Antarctic Arctic Sea ice The Cryosphere OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Arctic The Antarctic The Cryosphere 15 10 4981 4998 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
We assess the influence of snow on sea ice in experiments using the Community Earth System Model version 2 for a preindustrial and a 2xCO2 climate state. In the preindustrial climate, we find that increasing simulated snow accumulation on sea ice results in thicker sea ice and a cooler climate in both hemispheres. The sea ice mass budget response differs fundamentally between the two hemispheres. In the Arctic, increasing snow results in a decrease in both congelation sea ice growth and surface sea ice melt due to the snow's impact on conductive heat transfer and albedo, respectively. These factors dominate in regions of perennial ice but have a smaller influence in seasonal ice areas. Overall, the mass budget changes lead to a reduced amplitude in the annual cycle of ice thickness. In the Antarctic, with increasing snow, ice growth increases due to snow-ice formation and is balanced by larger basal ice melt, which primarily occurs in regions of seasonal ice. In a warmer 2xCO2 climate, the Arctic sea ice sensitivity to snow depth is small and reduced relative to that of the preindustrial climate. In contrast, in the Antarctic, the sensitivity to snow on sea ice in the 2xCO2 climate is qualitatively similar to the sensitivity in the preindustrial climate. These results underscore the importance of accurately representing snow accumulation on sea ice in coupled Earth system models due to its impact on a number of competing processes and feedbacks that affect the melt and growth of sea ice. 1724748 |
author2 |
Holland, Marika M. (author) Clemens-Sewall, David (author) Landrum, Laura (author) Light, Bonnie (author) Perovich, Donald (author) Polashenski, Chris (author) Smith, Madison (author) Webster, Melinda (author) |
format |
Article in Journal/Newspaper |
title |
The influence of snow on sea ice as assessed from simulations of CESM2 |
spellingShingle |
The influence of snow on sea ice as assessed from simulations of CESM2 |
title_short |
The influence of snow on sea ice as assessed from simulations of CESM2 |
title_full |
The influence of snow on sea ice as assessed from simulations of CESM2 |
title_fullStr |
The influence of snow on sea ice as assessed from simulations of CESM2 |
title_full_unstemmed |
The influence of snow on sea ice as assessed from simulations of CESM2 |
title_sort |
influence of snow on sea ice as assessed from simulations of cesm2 |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-4981-2021 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
albedo Antarc* Antarctic Arctic Sea ice The Cryosphere |
genre_facet |
albedo Antarc* Antarctic Arctic Sea ice The Cryosphere |
op_relation |
The Cryosphere--The Cryosphere--1994-0424 marikaholland/Snow_On_Ice_TC_2021: Snow on ice data--10.5281/zenodo.5572930 Sea Ice Index, Version 3--10.7265/N5K072F8 articles:24815 doi:10.5194/tc-15-4981-2021 ark:/85065/d7tf01ss |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.5194/tc-15-4981-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
10 |
container_start_page |
4981 |
op_container_end_page |
4998 |
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1796300771336126464 |