Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut
The temporal and spatial variation in seasonal sea ice in Arctic Bay, Nunavut, are examined using time series and spatial clustering analyses. For the period of 1971 to 2018, a time series of sea ice break-up, and freeze-up, dates and ice-free season length at nine grid points are generated from sea...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-04-01
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| Series: | Coasts |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-964X/3/2/7 |
| _version_ | 1827737907735035904 |
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| author | Slawomir Kowal William A. Gough Kenneth Butler |
| author_facet | Slawomir Kowal William A. Gough Kenneth Butler |
| author_sort | Slawomir Kowal |
| collection | DOAJ |
| description | The temporal and spatial variation in seasonal sea ice in Arctic Bay, Nunavut, are examined using time series and spatial clustering analyses. For the period of 1971 to 2018, a time series of sea ice break-up, and freeze-up, dates and ice-free season length at nine grid points are generated from sea ice charts derived from satellites and other data. These data are analysed temporally and spatially. The temporal analyses indicate an unambiguous response to a warming climate with statistically significant earlier break-up dates, later freeze-up dates, and longer ice-free seasons with clear statistically significant linkages to local air temperature. The rate of change in freeze-up dates and ice-free season length was particularly strong in the early 2000s and less in the 2010s. Spatial clustering analysis indicated a roughly linear pathway of south to north behaviour, following the contours of the bay with the exception of modified behaviour for landfast sea ice near the hamlet of Arctic Bay. The temporal analysis confirms and expands upon an earlier time series analysis of local seasonal sea ice. The spatial analysis indicates that while the ice-free season is increasing, it does not provide clear evidence that there has been a regime change in the seasonal characteristics of how sea ice forms and melts each year. |
| first_indexed | 2024-03-11T02:37:07Z |
| format | Article |
| id | doaj.art-be7cb526a4f3487b946f12abaad8a54f |
| institution | Directory Open Access Journal |
| issn | 2673-964X |
| language | English |
| last_indexed | 2024-03-11T02:37:07Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Coasts |
| spelling | doaj.art-be7cb526a4f3487b946f12abaad8a54f2023-11-18T09:53:18ZengMDPI AGCoasts2673-964X2023-04-013211312410.3390/coasts3020007Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, NunavutSlawomir Kowal0William A. Gough1Kenneth Butler2Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Scarborough, ON M1C 1A4, CanadaDepartment of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Scarborough, ON M1C 1A4, CanadaDepartment of Computer and Mathematical Sciences, University of Toronto Scarborough, 1265 Military Trail, Scarborough, ON M1C 1A4, CanadaThe temporal and spatial variation in seasonal sea ice in Arctic Bay, Nunavut, are examined using time series and spatial clustering analyses. For the period of 1971 to 2018, a time series of sea ice break-up, and freeze-up, dates and ice-free season length at nine grid points are generated from sea ice charts derived from satellites and other data. These data are analysed temporally and spatially. The temporal analyses indicate an unambiguous response to a warming climate with statistically significant earlier break-up dates, later freeze-up dates, and longer ice-free seasons with clear statistically significant linkages to local air temperature. The rate of change in freeze-up dates and ice-free season length was particularly strong in the early 2000s and less in the 2010s. Spatial clustering analysis indicated a roughly linear pathway of south to north behaviour, following the contours of the bay with the exception of modified behaviour for landfast sea ice near the hamlet of Arctic Bay. The temporal analysis confirms and expands upon an earlier time series analysis of local seasonal sea ice. The spatial analysis indicates that while the ice-free season is increasing, it does not provide clear evidence that there has been a regime change in the seasonal characteristics of how sea ice forms and melts each year.https://www.mdpi.com/2673-964X/3/2/7sea iceArctic Baytimes series analysisspatial analysisbreak-upfreeze-up |
| spellingShingle | Slawomir Kowal William A. Gough Kenneth Butler Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut Coasts sea ice Arctic Bay times series analysis spatial analysis break-up freeze-up |
| title | Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut |
| title_full | Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut |
| title_fullStr | Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut |
| title_full_unstemmed | Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut |
| title_short | Temporal and Spatial Evolution of Seasonal Sea Ice of Arctic Bay, Nunavut |
| title_sort | temporal and spatial evolution of seasonal sea ice of arctic bay nunavut |
| topic | sea ice Arctic Bay times series analysis spatial analysis break-up freeze-up |
| url | https://www.mdpi.com/2673-964X/3/2/7 |
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