Warm winter, thin ice?
Winter 2016/2017 saw record warmth over the Arctic Ocean, leading to the least amount of freezing degree days north of 70° N since at least 1979. The impact of this warmth was evaluated using model simulations from the Los Alamos sea ice model (CICE) and CryoSat-2 thickness estimates from three diff...
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ftdoajarticles:oai:doaj.org/article:bb2d3d43ba304534876b726fc38b2ac9 2023-05-15T14:57:06+02:00 Warm winter, thin ice? J. C. Stroeve D. Schroder M. Tsamados D. Feltham 2018-05-01T00:00:00Z https://doi.org/10.5194/tc-12-1791-2018 https://doaj.org/article/bb2d3d43ba304534876b726fc38b2ac9 EN eng Copernicus Publications https://www.the-cryosphere.net/12/1791/2018/tc-12-1791-2018.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-12-1791-2018 1994-0416 1994-0424 https://doaj.org/article/bb2d3d43ba304534876b726fc38b2ac9 The Cryosphere, Vol 12, Pp 1791-1809 (2018) Environmental sciences GE1-350 Geology QE1-996.5 article 2018 ftdoajarticles https://doi.org/10.5194/tc-12-1791-2018 2022-12-31T02:19:07Z Winter 2016/2017 saw record warmth over the Arctic Ocean, leading to the least amount of freezing degree days north of 70° N since at least 1979. The impact of this warmth was evaluated using model simulations from the Los Alamos sea ice model (CICE) and CryoSat-2 thickness estimates from three different data providers. While CICE simulations show a broad region of anomalously thin ice in April 2017 relative to the 2011–2017 mean, analysis of three CryoSat-2 products show more limited regions with thin ice and do not always agree with each other, both in magnitude and direction of thickness anomalies. CICE is further used to diagnose feedback processes driving the observed anomalies, showing 11–13 cm reduced thermodynamic ice growth over the Arctic domain used in this study compared to the 2011–2017 mean, and dynamical contributions of +1 to +4 cm. Finally, CICE model simulations from 1985 to 2017 indicate the negative feedback relationship between ice growth and winter air temperatures may be starting to weaken, showing decreased winter ice growth since 2012, as winter air temperatures have increased and the freeze-up has been further delayed. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice The Cryosphere Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean The Cryosphere 12 5 1791 1809 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 J. C. Stroeve D. Schroder M. Tsamados D. Feltham Warm winter, thin ice? |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Winter 2016/2017 saw record warmth over the Arctic Ocean, leading to the least amount of freezing degree days north of 70° N since at least 1979. The impact of this warmth was evaluated using model simulations from the Los Alamos sea ice model (CICE) and CryoSat-2 thickness estimates from three different data providers. While CICE simulations show a broad region of anomalously thin ice in April 2017 relative to the 2011–2017 mean, analysis of three CryoSat-2 products show more limited regions with thin ice and do not always agree with each other, both in magnitude and direction of thickness anomalies. CICE is further used to diagnose feedback processes driving the observed anomalies, showing 11–13 cm reduced thermodynamic ice growth over the Arctic domain used in this study compared to the 2011–2017 mean, and dynamical contributions of +1 to +4 cm. Finally, CICE model simulations from 1985 to 2017 indicate the negative feedback relationship between ice growth and winter air temperatures may be starting to weaken, showing decreased winter ice growth since 2012, as winter air temperatures have increased and the freeze-up has been further delayed. |
format |
Article in Journal/Newspaper |
author |
J. C. Stroeve D. Schroder M. Tsamados D. Feltham |
author_facet |
J. C. Stroeve D. Schroder M. Tsamados D. Feltham |
author_sort |
J. C. Stroeve |
title |
Warm winter, thin ice? |
title_short |
Warm winter, thin ice? |
title_full |
Warm winter, thin ice? |
title_fullStr |
Warm winter, thin ice? |
title_full_unstemmed |
Warm winter, thin ice? |
title_sort |
warm winter, thin ice? |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-1791-2018 https://doaj.org/article/bb2d3d43ba304534876b726fc38b2ac9 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice The Cryosphere |
genre_facet |
Arctic Arctic Ocean Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 1791-1809 (2018) |
op_relation |
https://www.the-cryosphere.net/12/1791/2018/tc-12-1791-2018.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-12-1791-2018 1994-0416 1994-0424 https://doaj.org/article/bb2d3d43ba304534876b726fc38b2ac9 |
op_doi |
https://doi.org/10.5194/tc-12-1791-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
5 |
container_start_page |
1791 |
op_container_end_page |
1809 |
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1766329197170524160 |