Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations
One of the major challenges facing global hydrodynamic tidal models is the modelling of the interaction between sea ice and tides in high-latitude waters. Recent studies have shown strong seasonal correlation between sea ice and tides. Hence, it is important to accurately model the effect of sea ice...
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Springer Nature
2022
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ftawi:oai:epic.awi.de:58785 2024-06-09T07:45:01+00:00 Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations Vasulkar, Amey Verlaan, Martin Slobbe, Cornelis Kaleschke, Lars 2022-08 application/pdf https://epic.awi.de/id/eprint/58785/ https://epic.awi.de/id/eprint/58785/1/s10236-022-01516-w%20%281%29.pdf https://doi.org/10.1007/s10236-022-01516-w https://hdl.handle.net/10013/epic.16e95c38-2506-4213-8850-04aea083abaf unknown Springer Nature https://epic.awi.de/id/eprint/58785/1/s10236-022-01516-w%20%281%29.pdf Vasulkar, A. , Verlaan, M. , Slobbe, C. and Kaleschke, L. orcid:0000-0001-7086-3299 (2022) Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations , Ocean Dynamics, 72 (8), pp. 577-597 . doi:10.1007/s10236-022-01516-w <https://doi.org/10.1007/s10236-022-01516-w> , hdl:10013/epic.16e95c38-2506-4213-8850-04aea083abaf EPIC3Ocean Dynamics, Springer Nature, 72(8), pp. 577-597, ISSN: 1616-7341 Article isiRev 2022 ftawi https://doi.org/10.1007/s10236-022-01516-w 2024-05-14T23:31:42Z One of the major challenges facing global hydrodynamic tidal models is the modelling of the interaction between sea ice and tides in high-latitude waters. Recent studies have shown strong seasonal correlation between sea ice and tides. Hence, it is important to accurately model the effect of sea ice in a tidal model. Presence of sea ice leads to a frictional dissipation of tides. Most models either completely ignore sea ice or partly include it by assuming a fixed sea ice cover (landfast ice). However, sea ice can also be drifting and the nature of dissipation between drifting sea ice and tides is partly unknown. We assess the dissipation of tides due to free drift sea ice. In the absence of wind, this is negligible in the deeper and open ocean. For the shallow water regions, however, this dissipation is unknown. Here, we evaluate this dissipation for the Spitzbergen Shelf region using a beacon dataset showing strong free drift subdaily sea ice oscillations and a physics based point ice model. Two analyses were done which compared the model and observed motion. The analyses showed that for winds speeds below 8m/s and with low subdaily signals, the subdaily free drift sea ice motion is strongly connected to the tides and that the frictional dissipation is low. In the context of global tide and storm surge models, the dissipation from free drift sea ice on tides should be evaluated based on the region (deep ocean or shallow water) and existing wind conditions. In the presence of strong winds the dissipation between free drift sea ice and air can be significant on a subdaily scale even if there are no subdaily signals in the wind itself. Article in Journal/Newspaper Barents Sea Sea ice Spitzbergen Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Barents Sea Ocean Dynamics 72 8 577 597 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
One of the major challenges facing global hydrodynamic tidal models is the modelling of the interaction between sea ice and tides in high-latitude waters. Recent studies have shown strong seasonal correlation between sea ice and tides. Hence, it is important to accurately model the effect of sea ice in a tidal model. Presence of sea ice leads to a frictional dissipation of tides. Most models either completely ignore sea ice or partly include it by assuming a fixed sea ice cover (landfast ice). However, sea ice can also be drifting and the nature of dissipation between drifting sea ice and tides is partly unknown. We assess the dissipation of tides due to free drift sea ice. In the absence of wind, this is negligible in the deeper and open ocean. For the shallow water regions, however, this dissipation is unknown. Here, we evaluate this dissipation for the Spitzbergen Shelf region using a beacon dataset showing strong free drift subdaily sea ice oscillations and a physics based point ice model. Two analyses were done which compared the model and observed motion. The analyses showed that for winds speeds below 8m/s and with low subdaily signals, the subdaily free drift sea ice motion is strongly connected to the tides and that the frictional dissipation is low. In the context of global tide and storm surge models, the dissipation from free drift sea ice on tides should be evaluated based on the region (deep ocean or shallow water) and existing wind conditions. In the presence of strong winds the dissipation between free drift sea ice and air can be significant on a subdaily scale even if there are no subdaily signals in the wind itself. |
format |
Article in Journal/Newspaper |
author |
Vasulkar, Amey Verlaan, Martin Slobbe, Cornelis Kaleschke, Lars |
spellingShingle |
Vasulkar, Amey Verlaan, Martin Slobbe, Cornelis Kaleschke, Lars Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations |
author_facet |
Vasulkar, Amey Verlaan, Martin Slobbe, Cornelis Kaleschke, Lars |
author_sort |
Vasulkar, Amey |
title |
Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations |
title_short |
Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations |
title_full |
Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations |
title_fullStr |
Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations |
title_full_unstemmed |
Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations |
title_sort |
tidal dissipation from free drift sea ice in the barents sea assessed using gnss beacon observations |
publisher |
Springer Nature |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/58785/ https://epic.awi.de/id/eprint/58785/1/s10236-022-01516-w%20%281%29.pdf https://doi.org/10.1007/s10236-022-01516-w https://hdl.handle.net/10013/epic.16e95c38-2506-4213-8850-04aea083abaf |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Sea ice Spitzbergen |
genre_facet |
Barents Sea Sea ice Spitzbergen |
op_source |
EPIC3Ocean Dynamics, Springer Nature, 72(8), pp. 577-597, ISSN: 1616-7341 |
op_relation |
https://epic.awi.de/id/eprint/58785/1/s10236-022-01516-w%20%281%29.pdf Vasulkar, A. , Verlaan, M. , Slobbe, C. and Kaleschke, L. orcid:0000-0001-7086-3299 (2022) Tidal dissipation from free drift sea ice in the Barents Sea assessed using GNSS beacon observations , Ocean Dynamics, 72 (8), pp. 577-597 . doi:10.1007/s10236-022-01516-w <https://doi.org/10.1007/s10236-022-01516-w> , hdl:10013/epic.16e95c38-2506-4213-8850-04aea083abaf |
op_doi |
https://doi.org/10.1007/s10236-022-01516-w |
container_title |
Ocean Dynamics |
container_volume |
72 |
container_issue |
8 |
container_start_page |
577 |
op_container_end_page |
597 |
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1801373946975617024 |