Southern ocean iceberg drift
Icebergs are fragments of glacier ice, which break-off from the ice shelves and glacier tongues all around Antarctica. After calving, icebergs drift through the ocean, driven by a number of forces. The main forces are the ocean currents and the wind, but also the Coriolis force, sea surface tilt, se...
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ftawi:oai:epic.awi.de:31978 2023-05-15T13:46:52+02:00 Southern ocean iceberg drift Wesche, Christine Rackow, Thomas Dierking, Wolfgang 2013 application/pdf https://epic.awi.de/id/eprint/31978/ https://epic.awi.de/id/eprint/31978/1/Abstract_cwesche.pdf https://hdl.handle.net/10013/epic.40667 https://hdl.handle.net/10013/epic.40667.d001 unknown https://epic.awi.de/id/eprint/31978/1/Abstract_cwesche.pdf https://hdl.handle.net/10013/epic.40667.d001 Wesche, C. orcid:0000-0002-9786-4010 , Rackow, T. orcid:0000-0002-5468-575X and Dierking, W. orcid:0000-0002-5031-648X (2013) Southern ocean iceberg drift , DFG Berichtskolloqium SPP Antarktisforschung auf der 25. Internationalen Polartagung, Hamburg, Deutschland, 17 March 2013 - 22 March 2013 . hdl:10013/epic.40667 EPIC3DFG Berichtskolloqium SPP Antarktisforschung auf der 25. Internationalen Polartagung, Hamburg, Deutschland, 2013-03-17-2013-03-22 Conference notRev 2013 ftawi 2021-12-24T15:38:14Z Icebergs are fragments of glacier ice, which break-off from the ice shelves and glacier tongues all around Antarctica. After calving, icebergs drift through the ocean, driven by a number of forces. The main forces are the ocean currents and the wind, but also the Coriolis force, sea surface tilt, sea ice concentration and strength, as well as the wave radiation do influence the drift of icebergs. The relative contributions of the individual forces depend on the environmental conditions (e. g. sea ice or open water) and the iceberg size and thickness. A drift algorithm is used to simulate the drift of icebergs through the Southern ocean. The iceberg drift algorithm is implemented in the Finite Elemente Sea-ice Ocean Model (FESOM), which has a spatial resolution of 10 km close to the ice shelf edge and 30 km offshore. A test was carried out to study the effect of iceberg size and thickness as well as model set ups on the drift pattern. “Test icebergs” of a simplified shape were released into the model domain from 77 locations around Antarctica to simulate and analyse their path. The model results were compared with available observations. Additionally to the drift, the model also calculates the melting of icebergs and therefore the freshwater input into the ocean. Conference Object Antarc* Antarctica Ice Shelf Ice Shelves Sea ice Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Southern Ocean |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Icebergs are fragments of glacier ice, which break-off from the ice shelves and glacier tongues all around Antarctica. After calving, icebergs drift through the ocean, driven by a number of forces. The main forces are the ocean currents and the wind, but also the Coriolis force, sea surface tilt, sea ice concentration and strength, as well as the wave radiation do influence the drift of icebergs. The relative contributions of the individual forces depend on the environmental conditions (e. g. sea ice or open water) and the iceberg size and thickness. A drift algorithm is used to simulate the drift of icebergs through the Southern ocean. The iceberg drift algorithm is implemented in the Finite Elemente Sea-ice Ocean Model (FESOM), which has a spatial resolution of 10 km close to the ice shelf edge and 30 km offshore. A test was carried out to study the effect of iceberg size and thickness as well as model set ups on the drift pattern. “Test icebergs” of a simplified shape were released into the model domain from 77 locations around Antarctica to simulate and analyse their path. The model results were compared with available observations. Additionally to the drift, the model also calculates the melting of icebergs and therefore the freshwater input into the ocean. |
format |
Conference Object |
author |
Wesche, Christine Rackow, Thomas Dierking, Wolfgang |
spellingShingle |
Wesche, Christine Rackow, Thomas Dierking, Wolfgang Southern ocean iceberg drift |
author_facet |
Wesche, Christine Rackow, Thomas Dierking, Wolfgang |
author_sort |
Wesche, Christine |
title |
Southern ocean iceberg drift |
title_short |
Southern ocean iceberg drift |
title_full |
Southern ocean iceberg drift |
title_fullStr |
Southern ocean iceberg drift |
title_full_unstemmed |
Southern ocean iceberg drift |
title_sort |
southern ocean iceberg drift |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/31978/ https://epic.awi.de/id/eprint/31978/1/Abstract_cwesche.pdf https://hdl.handle.net/10013/epic.40667 https://hdl.handle.net/10013/epic.40667.d001 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Antarc* Antarctica Ice Shelf Ice Shelves Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctica Ice Shelf Ice Shelves Sea ice Southern Ocean |
op_source |
EPIC3DFG Berichtskolloqium SPP Antarktisforschung auf der 25. Internationalen Polartagung, Hamburg, Deutschland, 2013-03-17-2013-03-22 |
op_relation |
https://epic.awi.de/id/eprint/31978/1/Abstract_cwesche.pdf https://hdl.handle.net/10013/epic.40667.d001 Wesche, C. orcid:0000-0002-9786-4010 , Rackow, T. orcid:0000-0002-5468-575X and Dierking, W. orcid:0000-0002-5031-648X (2013) Southern ocean iceberg drift , DFG Berichtskolloqium SPP Antarktisforschung auf der 25. Internationalen Polartagung, Hamburg, Deutschland, 17 March 2013 - 22 March 2013 . hdl:10013/epic.40667 |
_version_ |
1766245493155823616 |