Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001
The extent and duration of sea ice in Baffin Bay and Davis Strait has a major impact on the timing and strength of the marine production along West Greenland. The advance and retreat of the sea ice follows a predictable pattern, with maximum extent typically in March. We examine the area of sea ice...
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Norwegian Polar Institute
2003
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Online Access: | https://polarresearch.net/index.php/polar/article/view/2091 https://doi.org/10.3402/polar.v22i1.6438 |
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ftjpolarres:oai:journals.openacademia.net:article/2091 2024-09-15T17:56:54+00:00 Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 Stern, Harry L. Heide-Jørgensen, Mads Peter 2003-01-06 application/pdf https://polarresearch.net/index.php/polar/article/view/2091 https://doi.org/10.3402/polar.v22i1.6438 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2091/5342 https://polarresearch.net/index.php/polar/article/view/2091 doi:10.3402/polar.v22i1.6438 Polar Research; Vol. 22 No. 1 (2003): Special issue: Proceedings of the Workshop on Sea Ice Extent and the Global Climate System; 11-18 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2003 ftjpolarres https://doi.org/10.3402/polar.v22i1.6438 2024-06-28T03:10:15Z The extent and duration of sea ice in Baffin Bay and Davis Strait has a major impact on the timing and strength of the marine production along West Greenland. The advance and retreat of the sea ice follows a predictable pattern, with maximum extent typically in March. We examine the area of sea ice in March in three overlapping study regions centred on Disko Bay on the west coast of Greenland. Sea ice concentration estimates derived from satellite passive microwave data are available for the years 1979–2001. We extend the record back in time by digitizing ice charts from the Danish Meteorological Institute, 1953–1981. There is reasonable agreement between the chart data and the satellite data during the three years of overlap: 1979–1981. We find a significant increasing trend in sea ice for the 49-year period (1953–2001) for the study regions that extend into Davis Strait and Baffin Bay. The cyclical nature of the wintertime ice area is also evident, with a period of about 8 to 9 years. Correlation of the winter sea ice concentration with the winter North Atlantic Oscillation (NAO) index shows moderately high values in Baffin Bay. The correlation of ice concentration with the previous winter’s NAO is high in Davis Strait and suggests that next winter’s ice conditions can be predicted to some extent by this winter’s NAO index. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Davis Strait Disko Bay Greenland Greenland Sea North Atlantic North Atlantic oscillation Polar Research Sea ice Polar Research Polar Research 22 1 11 18 |
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English |
description |
The extent and duration of sea ice in Baffin Bay and Davis Strait has a major impact on the timing and strength of the marine production along West Greenland. The advance and retreat of the sea ice follows a predictable pattern, with maximum extent typically in March. We examine the area of sea ice in March in three overlapping study regions centred on Disko Bay on the west coast of Greenland. Sea ice concentration estimates derived from satellite passive microwave data are available for the years 1979–2001. We extend the record back in time by digitizing ice charts from the Danish Meteorological Institute, 1953–1981. There is reasonable agreement between the chart data and the satellite data during the three years of overlap: 1979–1981. We find a significant increasing trend in sea ice for the 49-year period (1953–2001) for the study regions that extend into Davis Strait and Baffin Bay. The cyclical nature of the wintertime ice area is also evident, with a period of about 8 to 9 years. Correlation of the winter sea ice concentration with the winter North Atlantic Oscillation (NAO) index shows moderately high values in Baffin Bay. The correlation of ice concentration with the previous winter’s NAO is high in Davis Strait and suggests that next winter’s ice conditions can be predicted to some extent by this winter’s NAO index. |
format |
Article in Journal/Newspaper |
author |
Stern, Harry L. Heide-Jørgensen, Mads Peter |
spellingShingle |
Stern, Harry L. Heide-Jørgensen, Mads Peter Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 |
author_facet |
Stern, Harry L. Heide-Jørgensen, Mads Peter |
author_sort |
Stern, Harry L. |
title |
Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 |
title_short |
Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 |
title_full |
Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 |
title_fullStr |
Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 |
title_full_unstemmed |
Trends and variability of sea ice in Baffin Bay and Davis Strait, 1953–2001 |
title_sort |
trends and variability of sea ice in baffin bay and davis strait, 1953–2001 |
publisher |
Norwegian Polar Institute |
publishDate |
2003 |
url |
https://polarresearch.net/index.php/polar/article/view/2091 https://doi.org/10.3402/polar.v22i1.6438 |
genre |
Baffin Bay Baffin Bay Baffin Davis Strait Disko Bay Greenland Greenland Sea North Atlantic North Atlantic oscillation Polar Research Sea ice |
genre_facet |
Baffin Bay Baffin Bay Baffin Davis Strait Disko Bay Greenland Greenland Sea North Atlantic North Atlantic oscillation Polar Research Sea ice |
op_source |
Polar Research; Vol. 22 No. 1 (2003): Special issue: Proceedings of the Workshop on Sea Ice Extent and the Global Climate System; 11-18 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2091/5342 https://polarresearch.net/index.php/polar/article/view/2091 doi:10.3402/polar.v22i1.6438 |
op_doi |
https://doi.org/10.3402/polar.v22i1.6438 |
container_title |
Polar Research |
container_volume |
22 |
container_issue |
1 |
container_start_page |
11 |
op_container_end_page |
18 |
_version_ |
1810433079804690432 |