Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents
The importance of considering ocean surface currents in ice-ocean stress calculation in the North Atlantic Ocean and Arctic sea ice is investigated for the first time using a global coupled ocean-sea ice model. Considering ocean surface currents in ice-ocean stress calculation weakens the ocean surf...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2021
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2021.628892 https://doaj.org/article/c734c4e3c5a04eac9ae938b8a3633d64 |
id |
ftdoajarticles:oai:doaj.org/article:c734c4e3c5a04eac9ae938b8a3633d64 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:c734c4e3c5a04eac9ae938b8a3633d64 2023-05-15T15:09:27+02:00 Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents Yang Wu Zhaomin Wang Chengyan Liu 2021-04-01T00:00:00Z https://doi.org/10.3389/fmars.2021.628892 https://doaj.org/article/c734c4e3c5a04eac9ae938b8a3633d64 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2021.628892/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.628892 https://doaj.org/article/c734c4e3c5a04eac9ae938b8a3633d64 Frontiers in Marine Science, Vol 8 (2021) ice-ocean stress sea ice extent Ekman pumping Atlantic meridional overturning circulation Labrador Sea Nordic Seas Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2021 ftdoajarticles https://doi.org/10.3389/fmars.2021.628892 2022-12-31T15:28:34Z The importance of considering ocean surface currents in ice-ocean stress calculation in the North Atlantic Ocean and Arctic sea ice is investigated for the first time using a global coupled ocean-sea ice model. Considering ocean surface currents in ice-ocean stress calculation weakens the ocean surface stress and Ekman pumping by about 7.7 and 15% over the North Atlantic Ocean, respectively. It also significantly reduces the mechanical energy input to ageostrophic and geostrophic currents, and weakens the mean and eddy kinetic energy by reducing the energy conversion rates of baroclinic and barotropic pathways. Furthermore, the strength of the Atlantic Meridional Overturning Circulation (AMOC), the Nordic Seas MOC, and the North Atlantic subpolar gyre are found to be reduced considerably (by 14.3, 31.0, and 18.1%, respectively). The weakened AMOC leads to a 0.12 PW reduction in maximum northward ocean heat transport, resulting in a reduced surface heat loss and lower sea surface temperature over the North Atlantic Ocean. This reduction also leads to a shrink in sea ice extent and an attenuation of sea ice thickness. These findings highlight the importance of properly considering both the geostrophic and ageostrophic components of ocean surface currents in ice-ocean stress calculation on ocean circulation and climate studies. Article in Journal/Newspaper Arctic Labrador Sea Nordic Seas North Atlantic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Frontiers in Marine Science 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice-ocean stress sea ice extent Ekman pumping Atlantic meridional overturning circulation Labrador Sea Nordic Seas Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
ice-ocean stress sea ice extent Ekman pumping Atlantic meridional overturning circulation Labrador Sea Nordic Seas Science Q General. Including nature conservation geographical distribution QH1-199.5 Yang Wu Zhaomin Wang Chengyan Liu Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents |
topic_facet |
ice-ocean stress sea ice extent Ekman pumping Atlantic meridional overturning circulation Labrador Sea Nordic Seas Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The importance of considering ocean surface currents in ice-ocean stress calculation in the North Atlantic Ocean and Arctic sea ice is investigated for the first time using a global coupled ocean-sea ice model. Considering ocean surface currents in ice-ocean stress calculation weakens the ocean surface stress and Ekman pumping by about 7.7 and 15% over the North Atlantic Ocean, respectively. It also significantly reduces the mechanical energy input to ageostrophic and geostrophic currents, and weakens the mean and eddy kinetic energy by reducing the energy conversion rates of baroclinic and barotropic pathways. Furthermore, the strength of the Atlantic Meridional Overturning Circulation (AMOC), the Nordic Seas MOC, and the North Atlantic subpolar gyre are found to be reduced considerably (by 14.3, 31.0, and 18.1%, respectively). The weakened AMOC leads to a 0.12 PW reduction in maximum northward ocean heat transport, resulting in a reduced surface heat loss and lower sea surface temperature over the North Atlantic Ocean. This reduction also leads to a shrink in sea ice extent and an attenuation of sea ice thickness. These findings highlight the importance of properly considering both the geostrophic and ageostrophic components of ocean surface currents in ice-ocean stress calculation on ocean circulation and climate studies. |
format |
Article in Journal/Newspaper |
author |
Yang Wu Zhaomin Wang Chengyan Liu |
author_facet |
Yang Wu Zhaomin Wang Chengyan Liu |
author_sort |
Yang Wu |
title |
Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents |
title_short |
Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents |
title_full |
Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents |
title_fullStr |
Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents |
title_full_unstemmed |
Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents |
title_sort |
impacts of changed ice-ocean stress on the north atlantic ocean: role of ocean surface currents |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.628892 https://doaj.org/article/c734c4e3c5a04eac9ae938b8a3633d64 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Labrador Sea Nordic Seas North Atlantic Sea ice |
genre_facet |
Arctic Labrador Sea Nordic Seas North Atlantic Sea ice |
op_source |
Frontiers in Marine Science, Vol 8 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2021.628892/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.628892 https://doaj.org/article/c734c4e3c5a04eac9ae938b8a3633d64 |
op_doi |
https://doi.org/10.3389/fmars.2021.628892 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
_version_ |
1766340639276924928 |