Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland
On 29 April 2015, four beacons were deployed onto an ice island in the Strait of Belle Isle to record positional data. The ice island later broke up into many fragments, four of which were tracked by the beacons. The relative influences of wind drag, current drag, Coriolis force, sea surface height...
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Cambridge University Press
2020
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ftdoajarticles:oai:doaj.org/article:26c426a32b5a4482b8870c09b800eace 2023-05-15T16:57:32+02:00 Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland Reza Zeinali Torbati Ian D. Turnbull Rocky S. Taylor Derek Mueller 2020-04-01T00:00:00Z https://doi.org/10.1017/jog.2019.96 https://doaj.org/article/26c426a32b5a4482b8870c09b800eace EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143019000960/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.96 0022-1430 1727-5652 https://doaj.org/article/26c426a32b5a4482b8870c09b800eace Journal of Glaciology, Vol 66, Pp 203-218 (2020) Atmospheric and oceanic forces basal ablation ice island deterioration ice island drift sea-ice force surface ablation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.1017/jog.2019.96 2023-03-12T01:30:57Z On 29 April 2015, four beacons were deployed onto an ice island in the Strait of Belle Isle to record positional data. The ice island later broke up into many fragments, four of which were tracked by the beacons. The relative influences of wind drag, current drag, Coriolis force, sea surface height gradient and sea-ice force on the drift of the tracked ice island fragments were analyzed. Using atmospheric and oceanic model outputs, the sea-ice force was calculated as the residual of the fragments' net forces and the sum of all other forces. This was compared against the force obtained through ice concentration-dependent relationships when sea ice was present. The sea-ice forces calculated from the residual approach and concentration-dependent relationships were significant only when sea ice was present at medium-high concentrations in the vicinity of the ice island fragments. The forces from ocean currents and sea surface tilt contributed the most to the drift of the ice island fragments. Wind, however, played a minimal role in the total force governing the drift of the four ice island fragments, and Coriolis force was significant when the fragments were drifting at higher speeds. Article in Journal/Newspaper Journal of Glaciology Newfoundland Sea ice Strait of Belle Isle Directory of Open Access Journals: DOAJ Articles Belle Isle ENVELOPE(-55.357,-55.357,51.942,51.942) Strait of Belle Isle ENVELOPE(-57.115,-57.115,51.400,51.400) Journal of Glaciology 66 256 203 218 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Atmospheric and oceanic forces basal ablation ice island deterioration ice island drift sea-ice force surface ablation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Atmospheric and oceanic forces basal ablation ice island deterioration ice island drift sea-ice force surface ablation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Reza Zeinali Torbati Ian D. Turnbull Rocky S. Taylor Derek Mueller Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland |
topic_facet |
Atmospheric and oceanic forces basal ablation ice island deterioration ice island drift sea-ice force surface ablation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
On 29 April 2015, four beacons were deployed onto an ice island in the Strait of Belle Isle to record positional data. The ice island later broke up into many fragments, four of which were tracked by the beacons. The relative influences of wind drag, current drag, Coriolis force, sea surface height gradient and sea-ice force on the drift of the tracked ice island fragments were analyzed. Using atmospheric and oceanic model outputs, the sea-ice force was calculated as the residual of the fragments' net forces and the sum of all other forces. This was compared against the force obtained through ice concentration-dependent relationships when sea ice was present. The sea-ice forces calculated from the residual approach and concentration-dependent relationships were significant only when sea ice was present at medium-high concentrations in the vicinity of the ice island fragments. The forces from ocean currents and sea surface tilt contributed the most to the drift of the ice island fragments. Wind, however, played a minimal role in the total force governing the drift of the four ice island fragments, and Coriolis force was significant when the fragments were drifting at higher speeds. |
format |
Article in Journal/Newspaper |
author |
Reza Zeinali Torbati Ian D. Turnbull Rocky S. Taylor Derek Mueller |
author_facet |
Reza Zeinali Torbati Ian D. Turnbull Rocky S. Taylor Derek Mueller |
author_sort |
Reza Zeinali Torbati |
title |
Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland |
title_short |
Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland |
title_full |
Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland |
title_fullStr |
Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland |
title_full_unstemmed |
Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland |
title_sort |
evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore newfoundland |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://doi.org/10.1017/jog.2019.96 https://doaj.org/article/26c426a32b5a4482b8870c09b800eace |
long_lat |
ENVELOPE(-55.357,-55.357,51.942,51.942) ENVELOPE(-57.115,-57.115,51.400,51.400) |
geographic |
Belle Isle Strait of Belle Isle |
geographic_facet |
Belle Isle Strait of Belle Isle |
genre |
Journal of Glaciology Newfoundland Sea ice Strait of Belle Isle |
genre_facet |
Journal of Glaciology Newfoundland Sea ice Strait of Belle Isle |
op_source |
Journal of Glaciology, Vol 66, Pp 203-218 (2020) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143019000960/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.96 0022-1430 1727-5652 https://doaj.org/article/26c426a32b5a4482b8870c09b800eace |
op_doi |
https://doi.org/10.1017/jog.2019.96 |
container_title |
Journal of Glaciology |
container_volume |
66 |
container_issue |
256 |
container_start_page |
203 |
op_container_end_page |
218 |
_version_ |
1766049104118415360 |