Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic
Large, tabular icebergs known as “ice islands” frequently transit the eastern Canadian Arctic and sub-Arctic after breaking away from ice tongues in northern Greenland. Here, we mine the Canadian Ice Island Drift, Deterioration and Detection (CI2D3) Database to contribute a descriptive assessment of...
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The Arctic Institute of North America
2022
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Online Access: | http://dx.doi.org/10.14430/arctic76227 https://journalhosting.ucalgary.ca/index.php/arctic/article/download/76227/56193 |
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crarcticinstna:10.14430/arctic76227 2024-06-09T07:41:24+00:00 Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic Crawford, Anna Mueller, Derek 2022 http://dx.doi.org/10.14430/arctic76227 https://journalhosting.ucalgary.ca/index.php/arctic/article/download/76227/56193 unknown The Arctic Institute of North America http://creativecommons.org/licenses/by/4.0/ ARCTIC ISSN 1923-1245 0004-0843 journal-article 2022 crarcticinstna https://doi.org/10.14430/arctic76227 2024-05-14T12:53:43Z Large, tabular icebergs known as “ice islands” frequently transit the eastern Canadian Arctic and sub-Arctic after breaking away from ice tongues in northern Greenland. Here, we mine the Canadian Ice Island Drift, Deterioration and Detection (CI2D3) Database to contribute a descriptive assessment of the drift and grounding locations of Petermann ice islands (PII) following calving events at the Petermann Glacier in 2008, 2010, and 2012. We also use the CI2D3 Database to demonstrate how gridded bathymetry products can be improved using observations of ice island grounding and knowledge of ice island thickness. We find that most PII fragments followed a common southbound drift route directed by outflow from the Arctic Ocean and the dominant Baffin and Labrador Currents, which are strongest along the steep continental shelf break. Smaller ice islands were more prone to drift into the deeper waters of central Baffin Bay. As previously noted by northern community members, ice islands were also observed to drift into many adjacent sounds, channels, inlets, and straits. PIIs often grounded on shoals in Kane Basin, to the east of Coburg Island, and along the southeast coast of Baffin Island. Potential inaccuracies in two gridded bathymetry products were located in Jones Sound, near Coburg Island, and along the east coast of Baffin Island. Our approach to identifying these potential inaccuracies is shown to be sensitive to the estimate of ice island keel depth. Overall, this work provides synthesized observations of ice island occurrence and grounding as well as an approach to improving bathymetry products in a resource-rich marine region where traffic and industry operations are increasing. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Island Baffin Coburg island glacier Greenland Iceberg* Jones Sound Kane Basin Nares strait North Atlantic Petermann glacier Arctic Institute of North America Arctic Arctic Ocean Baffin Bay Baffin Island Coburg Island ENVELOPE(-79.338,-79.338,75.940,75.940) Greenland Jones Sound ENVELOPE(-86.000,-86.000,76.002,76.002) Kane ENVELOPE(-63.038,-63.038,-73.952,-73.952) Nares ENVELOPE(158.167,158.167,-81.450,-81.450) ARCTIC |
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Open Polar |
collection |
Arctic Institute of North America |
op_collection_id |
crarcticinstna |
language |
unknown |
description |
Large, tabular icebergs known as “ice islands” frequently transit the eastern Canadian Arctic and sub-Arctic after breaking away from ice tongues in northern Greenland. Here, we mine the Canadian Ice Island Drift, Deterioration and Detection (CI2D3) Database to contribute a descriptive assessment of the drift and grounding locations of Petermann ice islands (PII) following calving events at the Petermann Glacier in 2008, 2010, and 2012. We also use the CI2D3 Database to demonstrate how gridded bathymetry products can be improved using observations of ice island grounding and knowledge of ice island thickness. We find that most PII fragments followed a common southbound drift route directed by outflow from the Arctic Ocean and the dominant Baffin and Labrador Currents, which are strongest along the steep continental shelf break. Smaller ice islands were more prone to drift into the deeper waters of central Baffin Bay. As previously noted by northern community members, ice islands were also observed to drift into many adjacent sounds, channels, inlets, and straits. PIIs often grounded on shoals in Kane Basin, to the east of Coburg Island, and along the southeast coast of Baffin Island. Potential inaccuracies in two gridded bathymetry products were located in Jones Sound, near Coburg Island, and along the east coast of Baffin Island. Our approach to identifying these potential inaccuracies is shown to be sensitive to the estimate of ice island keel depth. Overall, this work provides synthesized observations of ice island occurrence and grounding as well as an approach to improving bathymetry products in a resource-rich marine region where traffic and industry operations are increasing. |
format |
Article in Journal/Newspaper |
author |
Crawford, Anna Mueller, Derek |
spellingShingle |
Crawford, Anna Mueller, Derek Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic |
author_facet |
Crawford, Anna Mueller, Derek |
author_sort |
Crawford, Anna |
title |
Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic |
title_short |
Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic |
title_full |
Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic |
title_fullStr |
Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic |
title_full_unstemmed |
Assessing Ice Island Drift Patterns, Ice Island Grounding Locations, and Gridded Bathymetry Products between Nares Strait and the North Atlantic |
title_sort |
assessing ice island drift patterns, ice island grounding locations, and gridded bathymetry products between nares strait and the north atlantic |
publisher |
The Arctic Institute of North America |
publishDate |
2022 |
url |
http://dx.doi.org/10.14430/arctic76227 https://journalhosting.ucalgary.ca/index.php/arctic/article/download/76227/56193 |
long_lat |
ENVELOPE(-79.338,-79.338,75.940,75.940) ENVELOPE(-86.000,-86.000,76.002,76.002) ENVELOPE(-63.038,-63.038,-73.952,-73.952) ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Arctic Arctic Ocean Baffin Bay Baffin Island Coburg Island Greenland Jones Sound Kane Nares |
geographic_facet |
Arctic Arctic Ocean Baffin Bay Baffin Island Coburg Island Greenland Jones Sound Kane Nares |
genre |
Arctic Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Island Baffin Coburg island glacier Greenland Iceberg* Jones Sound Kane Basin Nares strait North Atlantic Petermann glacier |
genre_facet |
Arctic Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Island Baffin Coburg island glacier Greenland Iceberg* Jones Sound Kane Basin Nares strait North Atlantic Petermann glacier |
op_source |
ARCTIC ISSN 1923-1245 0004-0843 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.14430/arctic76227 |
container_title |
ARCTIC |
_version_ |
1801369919781076992 |