The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs
Sea ice export through the Fram Strait is crucial in the dynamic evolution of Arctic sea ice and can further modulate Arctic sea ice mass balance as well as the ocean thermohaline circulation. In this study, based on outputs from a parameter-optimized and fully physical ocean–sea ice coupled model a...
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IOP Publishing
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Online Access: | https://doi.org/10.1088/1748-9326/acaf3b https://doaj.org/article/a542561283274c268802a4eb7680c2f5 |
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ftdoajarticles:oai:doaj.org/article:a542561283274c268802a4eb7680c2f5 2023-09-05T13:16:54+02:00 The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs Yijun Yang Chao Min Hao Luo Frank Kauker Robert Ricker Qinghua Yang 2023-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/acaf3b https://doaj.org/article/a542561283274c268802a4eb7680c2f5 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/acaf3b https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acaf3b 1748-9326 https://doaj.org/article/a542561283274c268802a4eb7680c2f5 Environmental Research Letters, Vol 18, Iss 1, p 014029 (2023) sea ice volume flux Fram Strait sea ice age Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2023 ftdoajarticles https://doi.org/10.1088/1748-9326/acaf3b 2023-08-13T00:36:48Z Sea ice export through the Fram Strait is crucial in the dynamic evolution of Arctic sea ice and can further modulate Arctic sea ice mass balance as well as the ocean thermohaline circulation. In this study, based on outputs from a parameter-optimized and fully physical ocean–sea ice coupled model and sea ice age observation, we estimate sea ice volume (SIV) flux and its age evolution via the Fram Strait. The estimate of mean annual SIV flux is about 1605 $ \pm $ 315 km ^3 yr ^−1 without a significant trend for 1979–2021. Combining with sea ice age data, the variation of the sea ice age and its corresponding SIV flux are obtained for 1984–2020. The SIV flux of 1st-year ice significantly increases as expected, but it still contributes very little to the total flux in the 2010s with a proportion of 3.5%. SIV fluxes of different ages in multi-year ice present diverse variations. The proportions of 2nd-year ice and 3rd-year ice in the annual SIV flux show an extreme increase from 6.8% and 25.0% in the 1980s to 49.0% and 38.8% in the 2010s, respectively, while the proportions of 4th-year ice and 5th-year and older (5+ year) ice significantly decrease from 22.8% and 45.0% in the 1980s to 7.1% and 1.6% in the 2010s, respectively. Meanwhile, the prevailing age of annual volume export via Fram Strait shifts from 4th-year and 5+ year ice to 2nd-year and 3rd-year ice around 2007/2008. It is worth noticing that the variation in Fram Strait ice export modulates the variation in Arctic SIV prior to 2008, but the reverse is true after 2008, indicating a decreasing influence of Fram Strait SIV export on Artic SIV variability with decreasing sea ice age. The results are beneficial to promote the understanding of the evolution of Fram Strait SIV export under the warming Arctic. Article in Journal/Newspaper Arctic Fram Strait Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Environmental Research Letters 18 1 014029 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
sea ice volume flux Fram Strait sea ice age Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
sea ice volume flux Fram Strait sea ice age Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Yijun Yang Chao Min Hao Luo Frank Kauker Robert Ricker Qinghua Yang The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
topic_facet |
sea ice volume flux Fram Strait sea ice age Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Sea ice export through the Fram Strait is crucial in the dynamic evolution of Arctic sea ice and can further modulate Arctic sea ice mass balance as well as the ocean thermohaline circulation. In this study, based on outputs from a parameter-optimized and fully physical ocean–sea ice coupled model and sea ice age observation, we estimate sea ice volume (SIV) flux and its age evolution via the Fram Strait. The estimate of mean annual SIV flux is about 1605 $ \pm $ 315 km ^3 yr ^−1 without a significant trend for 1979–2021. Combining with sea ice age data, the variation of the sea ice age and its corresponding SIV flux are obtained for 1984–2020. The SIV flux of 1st-year ice significantly increases as expected, but it still contributes very little to the total flux in the 2010s with a proportion of 3.5%. SIV fluxes of different ages in multi-year ice present diverse variations. The proportions of 2nd-year ice and 3rd-year ice in the annual SIV flux show an extreme increase from 6.8% and 25.0% in the 1980s to 49.0% and 38.8% in the 2010s, respectively, while the proportions of 4th-year ice and 5th-year and older (5+ year) ice significantly decrease from 22.8% and 45.0% in the 1980s to 7.1% and 1.6% in the 2010s, respectively. Meanwhile, the prevailing age of annual volume export via Fram Strait shifts from 4th-year and 5+ year ice to 2nd-year and 3rd-year ice around 2007/2008. It is worth noticing that the variation in Fram Strait ice export modulates the variation in Arctic SIV prior to 2008, but the reverse is true after 2008, indicating a decreasing influence of Fram Strait SIV export on Artic SIV variability with decreasing sea ice age. The results are beneficial to promote the understanding of the evolution of Fram Strait SIV export under the warming Arctic. |
format |
Article in Journal/Newspaper |
author |
Yijun Yang Chao Min Hao Luo Frank Kauker Robert Ricker Qinghua Yang |
author_facet |
Yijun Yang Chao Min Hao Luo Frank Kauker Robert Ricker Qinghua Yang |
author_sort |
Yijun Yang |
title |
The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
title_short |
The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
title_full |
The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
title_fullStr |
The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
title_full_unstemmed |
The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
title_sort |
evolution of the fram strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
https://doi.org/10.1088/1748-9326/acaf3b https://doaj.org/article/a542561283274c268802a4eb7680c2f5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Fram Strait Sea ice |
genre_facet |
Arctic Fram Strait Sea ice |
op_source |
Environmental Research Letters, Vol 18, Iss 1, p 014029 (2023) |
op_relation |
https://doi.org/10.1088/1748-9326/acaf3b https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acaf3b 1748-9326 https://doaj.org/article/a542561283274c268802a4eb7680c2f5 |
op_doi |
https://doi.org/10.1088/1748-9326/acaf3b |
container_title |
Environmental Research Letters |
container_volume |
18 |
container_issue |
1 |
container_start_page |
014029 |
_version_ |
1776198313021800448 |