Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018

The spatial variation in seasonal sea ice in Hudson Bay is examined using spatial clustering analyses. For the period 1971 to 2018, a time series of sea-ice breakup and freeze-up dates and ice-free season length at thirty-six grid locations is generated from sea-ice charts derived from satellites an...

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Main Authors: Slawomir Kowal, William A. Gough, Kenneth Butler
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Arctic, Antarctic, and Alpine Research
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/15230430.2024.2380375
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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 spatial variation in seasonal sea ice in Hudson Bay is examined using spatial clustering analyses. For the period 1971 to 2018, a time series of sea-ice breakup and freeze-up dates and ice-free season length at thirty-six grid locations is generated from sea-ice charts derived from satellites and other data. These data are analyzed spatially using three different clustering techniques. Overall, the three methods revealed a northeast/southwest axis in sea-ice behavior consistent with a well-documented cyclonic current flow and wind regime in Hudson Bay. The methods did differ in assigning grid locations to clusters with the greatest consistency for breakup behavior and in the northern region of the Bay across all three metrics. The greatest variability occurred with the central sea-ice platform likely the response to only subtle variations among these locations, leading to varying clusters. Missing data especially with freeze-up and ice-free season played a role in the clustering.
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publisher Taylor & Francis Group
record_format Article
series Arctic, Antarctic, and Alpine Research
spelling doaj-art-d451049bb36643cead7e39b854b81d532025-01-13T14:40:40ZengTaylor & Francis GroupArctic, Antarctic, and Alpine Research1523-04301938-42462024-12-0156110.1080/15230430.2024.2380375Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018Slawomir Kowal0William A. Gough1Kenneth Butler2Department of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, CanadaDepartment of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, CanadaDepartment of Computer and Mathematical Sciences, University of Toronto Scarborough, Scarborough, Ontario, CanadaThe spatial variation in seasonal sea ice in Hudson Bay is examined using spatial clustering analyses. For the period 1971 to 2018, a time series of sea-ice breakup and freeze-up dates and ice-free season length at thirty-six grid locations is generated from sea-ice charts derived from satellites and other data. These data are analyzed spatially using three different clustering techniques. Overall, the three methods revealed a northeast/southwest axis in sea-ice behavior consistent with a well-documented cyclonic current flow and wind regime in Hudson Bay. The methods did differ in assigning grid locations to clusters with the greatest consistency for breakup behavior and in the northern region of the Bay across all three metrics. The greatest variability occurred with the central sea-ice platform likely the response to only subtle variations among these locations, leading to varying clusters. Missing data especially with freeze-up and ice-free season played a role in the clustering.https://www.tandfonline.com/doi/10.1080/15230430.2024.2380375Sea iceHudson Bayspatial clustering
spellingShingle Slawomir Kowal
William A. Gough
Kenneth Butler
Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018
Arctic, Antarctic, and Alpine Research
Sea ice
Hudson Bay
spatial clustering
title Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018
title_full Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018
title_fullStr Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018
title_full_unstemmed Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018
title_short Spatial clustering of seasonal sea ice of Hudson Bay, Canada, 1971–2018
title_sort spatial clustering of seasonal sea ice of hudson bay canada 1971 2018
topic Sea ice
Hudson Bay
spatial clustering
url https://www.tandfonline.com/doi/10.1080/15230430.2024.2380375
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AT kennethbutler spatialclusteringofseasonalseaiceofhudsonbaycanada19712018