Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow
The throughflow in the Canadian Arctic Archipelago (CAA) had a significant impact on the North Atlantic Ocean with the Arctic climate change. The findings of physical mechanisms driving the throughflow in the CAA differed and few studies about the impact of sea level pressure (SLP) on the CAA throug...
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KeAi Communications Co., Ltd.
2021
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ftdoajarticles:oai:doaj.org/article:7040df5b09414650832409641d5325f4 2023-05-15T14:28:43+02:00 Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow Yu Zhang Chang-Sheng Chen Xin-Yi Shen Dan-Ya Xu Wei-Zeng Shao Robert C. Beardsley Liang Chang Gui-Ping Feng 2021-08-01T00:00:00Z https://doi.org/10.1016/j.accre.2021.07.009 https://doaj.org/article/7040df5b09414650832409641d5325f4 EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S1674927821001088 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2021.07.009 https://doaj.org/article/7040df5b09414650832409641d5325f4 Advances in Climate Change Research, Vol 12, Iss 4, Pp 539-552 (2021) Sea level pressure Volume transport Canadian Arctic Archipelago FVCOM Sea surface height Meteorology. Climatology QC851-999 Social sciences (General) H1-99 article 2021 ftdoajarticles https://doi.org/10.1016/j.accre.2021.07.009 2022-12-31T04:42:14Z The throughflow in the Canadian Arctic Archipelago (CAA) had a significant impact on the North Atlantic Ocean with the Arctic climate change. The findings of physical mechanisms driving the throughflow in the CAA differed and few studies about the impact of sea level pressure (SLP) on the CAA throughflow were made. A high-resolution ice-ocean coupled Arctic Ocean Finite-Volume Community Ocean Model (AO-FVCOM) was used over the period 1978–2016 to examine the interannual and seasonal variability of the outflows in the CAA and the mechanism of SLP in driving the variation of the CAA throughflow quantitively. The simulated volume transport through Davis Strait, Nares Strait, Lancaster Sound and Jones Sound showed consistent increasing trends over 1978–2016 and the larger flux in winter and spring than in summer and fall. The variation of volume transport through Nares Strait contributed more than Lancaster and Jones Sound to the variation through Davis Strait. Five process-oriented experiments were made to further explore the role of SLP in setting up and controlling the sea surface height (SSH) difference and thus the throughflow transport in the CAA. The SLP was a primary forcing to control the SSH difference and the outflow transport compared with the wind forcing. The memory of the SSH to the SLP was short and an equilibrium state could be reached if the SLP varied with time. The upstream and downstream SLP difference, however, made a slight direct contribution to driving the volume transport of the CAA throughflow. In addition to the external forcing of SLP and wind, the variability of the CAA outflow was also influenced by the variability of the inflow/outflow and SSH on boundaries connected to the Pacific and Atlantic Oceans. The choice of SLP datasets from CORE-v2, ECMWF and NCEP was sensitive to the simulated uncertainty of volume transport. Article in Journal/Newspaper Arctic Archipelago Arctic Arctic Ocean Canadian Arctic Archipelago Climate change Davis Strait Lancaster Sound Nares strait North Atlantic Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Canadian Arctic Archipelago Pacific Lancaster Sound ENVELOPE(-83.999,-83.999,74.218,74.218) Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Jones Sound ENVELOPE(-86.000,-86.000,76.002,76.002) Advances in Climate Change Research 12 4 447 455 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Sea level pressure Volume transport Canadian Arctic Archipelago FVCOM Sea surface height Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
spellingShingle |
Sea level pressure Volume transport Canadian Arctic Archipelago FVCOM Sea surface height Meteorology. Climatology QC851-999 Social sciences (General) H1-99 Yu Zhang Chang-Sheng Chen Xin-Yi Shen Dan-Ya Xu Wei-Zeng Shao Robert C. Beardsley Liang Chang Gui-Ping Feng Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow |
topic_facet |
Sea level pressure Volume transport Canadian Arctic Archipelago FVCOM Sea surface height Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
description |
The throughflow in the Canadian Arctic Archipelago (CAA) had a significant impact on the North Atlantic Ocean with the Arctic climate change. The findings of physical mechanisms driving the throughflow in the CAA differed and few studies about the impact of sea level pressure (SLP) on the CAA throughflow were made. A high-resolution ice-ocean coupled Arctic Ocean Finite-Volume Community Ocean Model (AO-FVCOM) was used over the period 1978–2016 to examine the interannual and seasonal variability of the outflows in the CAA and the mechanism of SLP in driving the variation of the CAA throughflow quantitively. The simulated volume transport through Davis Strait, Nares Strait, Lancaster Sound and Jones Sound showed consistent increasing trends over 1978–2016 and the larger flux in winter and spring than in summer and fall. The variation of volume transport through Nares Strait contributed more than Lancaster and Jones Sound to the variation through Davis Strait. Five process-oriented experiments were made to further explore the role of SLP in setting up and controlling the sea surface height (SSH) difference and thus the throughflow transport in the CAA. The SLP was a primary forcing to control the SSH difference and the outflow transport compared with the wind forcing. The memory of the SSH to the SLP was short and an equilibrium state could be reached if the SLP varied with time. The upstream and downstream SLP difference, however, made a slight direct contribution to driving the volume transport of the CAA throughflow. In addition to the external forcing of SLP and wind, the variability of the CAA outflow was also influenced by the variability of the inflow/outflow and SSH on boundaries connected to the Pacific and Atlantic Oceans. The choice of SLP datasets from CORE-v2, ECMWF and NCEP was sensitive to the simulated uncertainty of volume transport. |
format |
Article in Journal/Newspaper |
author |
Yu Zhang Chang-Sheng Chen Xin-Yi Shen Dan-Ya Xu Wei-Zeng Shao Robert C. Beardsley Liang Chang Gui-Ping Feng |
author_facet |
Yu Zhang Chang-Sheng Chen Xin-Yi Shen Dan-Ya Xu Wei-Zeng Shao Robert C. Beardsley Liang Chang Gui-Ping Feng |
author_sort |
Yu Zhang |
title |
Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow |
title_short |
Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow |
title_full |
Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow |
title_fullStr |
Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow |
title_full_unstemmed |
Role of sea level pressure in variations of the Canadian Arctic Archipelago throughflow |
title_sort |
role of sea level pressure in variations of the canadian arctic archipelago throughflow |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.accre.2021.07.009 https://doaj.org/article/7040df5b09414650832409641d5325f4 |
long_lat |
ENVELOPE(-83.999,-83.999,74.218,74.218) ENVELOPE(158.167,158.167,-81.450,-81.450) ENVELOPE(-86.000,-86.000,76.002,76.002) |
geographic |
Arctic Arctic Ocean Canadian Arctic Archipelago Pacific Lancaster Sound Nares Jones Sound |
geographic_facet |
Arctic Arctic Ocean Canadian Arctic Archipelago Pacific Lancaster Sound Nares Jones Sound |
genre |
Arctic Archipelago Arctic Arctic Ocean Canadian Arctic Archipelago Climate change Davis Strait Lancaster Sound Nares strait North Atlantic |
genre_facet |
Arctic Archipelago Arctic Arctic Ocean Canadian Arctic Archipelago Climate change Davis Strait Lancaster Sound Nares strait North Atlantic |
op_source |
Advances in Climate Change Research, Vol 12, Iss 4, Pp 539-552 (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674927821001088 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2021.07.009 https://doaj.org/article/7040df5b09414650832409641d5325f4 |
op_doi |
https://doi.org/10.1016/j.accre.2021.07.009 |
container_title |
Advances in Climate Change Research |
container_volume |
12 |
container_issue |
4 |
container_start_page |
447 |
op_container_end_page |
455 |
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1766302871014342656 |