Characterization of sea-ice kinematic in the Arctic outflow region using buoy data
Data from four ice-tethered buoys deployed in 2010 were used to investigate sea-ice motion and deformation from the Central Arctic to Fram Strait. Seasonal and long-term changes in ice kinematics of the Arctic outflow region were further quantified using 42 ice-tethered buoys deployed between 1979 a...
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Norwegian Polar Institute
2016
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ftdoajarticles:oai:doaj.org/article:1f89c1d9d3394be98f48cf4b0e578930 2023-05-15T14:41:26+02:00 Characterization of sea-ice kinematic in the Arctic outflow region using buoy data Ruibo Lei Petra Heil Jia Wang Zhanhai Zhang Qun Li Na Li 2016-01-01T00:00:00Z https://doi.org/10.3402/polar.v35.22658 https://doaj.org/article/1f89c1d9d3394be98f48cf4b0e578930 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/22658/pdf_61 https://doaj.org/toc/1751-8369 1751-8369 doi:10.3402/polar.v35.22658 https://doaj.org/article/1f89c1d9d3394be98f48cf4b0e578930 Polar Research, Vol 35, Iss 0, Pp 1-15 (2016) Sea ice kinematics dipole anomaly transpolar drift stream Arctic Ocean Fram Strait Environmental sciences GE1-350 Oceanography GC1-1581 article 2016 ftdoajarticles https://doi.org/10.3402/polar.v35.22658 2022-12-31T13:10:07Z Data from four ice-tethered buoys deployed in 2010 were used to investigate sea-ice motion and deformation from the Central Arctic to Fram Strait. Seasonal and long-term changes in ice kinematics of the Arctic outflow region were further quantified using 42 ice-tethered buoys deployed between 1979 and 2011. Our results confirmed that the dynamic setting of the transpolar drift stream (TDS) and Fram Strait shaped the motion of the sea ice. Ice drift was closely aligned with surface winds, except during quiescent conditions, or during short-term reversal of the wind direction opposing the TDS. Meridional ice velocity south of 85°N showed a distinct seasonal cycle, peaking between late autumn and early spring in agreement with the seasonality of surface winds. Inertia-induced ice motion was strengthened as ice concentration decreased in summer. As ice drifted southward into the Fram Strait, the meridional ice speed increased dramatically, while associated zonal ice convergence dominated the ice-field deformation. The Arctic atmospheric Dipole Anomaly (DA) influenced ice drift by accelerating the meridional ice velocity. Ice trajectories exhibited less meandering during the positive phase of DA and vice versa. From 2005 onwards, the buoy data exhibit high Arctic sea-ice outflow rates, closely related to persistent positive DA anomaly. However, the long-term data from 1979 to 2011 do not show any statistically significant trend for sea-ice outflow, but exhibit high year-to-year variability, associated with the change in the polarity of DA. Article in Journal/Newspaper Arctic Arctic Ocean Fram Strait Polar Research Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Polar Research 35 1 22658 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Sea ice kinematics dipole anomaly transpolar drift stream Arctic Ocean Fram Strait Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Sea ice kinematics dipole anomaly transpolar drift stream Arctic Ocean Fram Strait Environmental sciences GE1-350 Oceanography GC1-1581 Ruibo Lei Petra Heil Jia Wang Zhanhai Zhang Qun Li Na Li Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
topic_facet |
Sea ice kinematics dipole anomaly transpolar drift stream Arctic Ocean Fram Strait Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
Data from four ice-tethered buoys deployed in 2010 were used to investigate sea-ice motion and deformation from the Central Arctic to Fram Strait. Seasonal and long-term changes in ice kinematics of the Arctic outflow region were further quantified using 42 ice-tethered buoys deployed between 1979 and 2011. Our results confirmed that the dynamic setting of the transpolar drift stream (TDS) and Fram Strait shaped the motion of the sea ice. Ice drift was closely aligned with surface winds, except during quiescent conditions, or during short-term reversal of the wind direction opposing the TDS. Meridional ice velocity south of 85°N showed a distinct seasonal cycle, peaking between late autumn and early spring in agreement with the seasonality of surface winds. Inertia-induced ice motion was strengthened as ice concentration decreased in summer. As ice drifted southward into the Fram Strait, the meridional ice speed increased dramatically, while associated zonal ice convergence dominated the ice-field deformation. The Arctic atmospheric Dipole Anomaly (DA) influenced ice drift by accelerating the meridional ice velocity. Ice trajectories exhibited less meandering during the positive phase of DA and vice versa. From 2005 onwards, the buoy data exhibit high Arctic sea-ice outflow rates, closely related to persistent positive DA anomaly. However, the long-term data from 1979 to 2011 do not show any statistically significant trend for sea-ice outflow, but exhibit high year-to-year variability, associated with the change in the polarity of DA. |
format |
Article in Journal/Newspaper |
author |
Ruibo Lei Petra Heil Jia Wang Zhanhai Zhang Qun Li Na Li |
author_facet |
Ruibo Lei Petra Heil Jia Wang Zhanhai Zhang Qun Li Na Li |
author_sort |
Ruibo Lei |
title |
Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
title_short |
Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
title_full |
Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
title_fullStr |
Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
title_full_unstemmed |
Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
title_sort |
characterization of sea-ice kinematic in the arctic outflow region using buoy data |
publisher |
Norwegian Polar Institute |
publishDate |
2016 |
url |
https://doi.org/10.3402/polar.v35.22658 https://doaj.org/article/1f89c1d9d3394be98f48cf4b0e578930 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Fram Strait Polar Research Sea ice |
genre_facet |
Arctic Arctic Ocean Fram Strait Polar Research Sea ice |
op_source |
Polar Research, Vol 35, Iss 0, Pp 1-15 (2016) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/22658/pdf_61 https://doaj.org/toc/1751-8369 1751-8369 doi:10.3402/polar.v35.22658 https://doaj.org/article/1f89c1d9d3394be98f48cf4b0e578930 |
op_doi |
https://doi.org/10.3402/polar.v35.22658 |
container_title |
Polar Research |
container_volume |
35 |
container_issue |
1 |
container_start_page |
22658 |
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1766313205040152576 |