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 Inst
2016
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Online Access: | https://doi.org/10.3402/polar.v35.22658 http://ecite.utas.edu.au/113761 |
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ftunivtasecite:oai:ecite.utas.edu.au:113761 2023-05-15T14:26:07+02:00 Characterization of sea-ice kinematic in the Arctic outflow region using buoy data Lei, R Heil, P Wang, J Zhang, Z Li, Q Li, N 2016 application/pdf https://doi.org/10.3402/polar.v35.22658 http://ecite.utas.edu.au/113761 en eng Norwegian Polar Inst http://ecite.utas.edu.au/113761/1/Lei_Heil_Wang_Zhang_Li_Li_PolarRes_2016.pdf http://dx.doi.org/10.3402/polar.v35.22658 Lei, R and Heil, P and Wang, J and Zhang, Z and Li, Q and Li, N, Characterization of sea-ice kinematic in the Arctic outflow region using buoy data, Polar Research, 35 Article 22658. ISSN 0800-0395 (2016) [Refereed Article] http://ecite.utas.edu.au/113761 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Refereed Article PeerReviewed 2016 ftunivtasecite https://doi.org/10.3402/polar.v35.22658 2019-12-14T07:05:01Z 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 858N 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 Fram Strait Polar Research Sea ice eCite UTAS (University of Tasmania) Arctic Polar Research 35 1 22658 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology Lei, R Heil, P Wang, J Zhang, Z Li, Q Li, N Characterization of sea-ice kinematic in the Arctic outflow region using buoy data |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
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 858N 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 |
Lei, R Heil, P Wang, J Zhang, Z Li, Q Li, N |
author_facet |
Lei, R Heil, P Wang, J Zhang, Z Li, Q Li, N |
author_sort |
Lei, R |
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 Inst |
publishDate |
2016 |
url |
https://doi.org/10.3402/polar.v35.22658 http://ecite.utas.edu.au/113761 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Fram Strait Polar Research Sea ice |
genre_facet |
Arctic Arctic Fram Strait Polar Research Sea ice |
op_relation |
http://ecite.utas.edu.au/113761/1/Lei_Heil_Wang_Zhang_Li_Li_PolarRes_2016.pdf http://dx.doi.org/10.3402/polar.v35.22658 Lei, R and Heil, P and Wang, J and Zhang, Z and Li, Q and Li, N, Characterization of sea-ice kinematic in the Arctic outflow region using buoy data, Polar Research, 35 Article 22658. ISSN 0800-0395 (2016) [Refereed Article] http://ecite.utas.edu.au/113761 |
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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1766298599387299840 |