Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic
1 online resource (68 pages) : illustrations (chiefly colour), maps (chiefly colour), charts (some colour) Includes abstract. Includes bibliographical references (pages 61-68). This paper quantifies rates of shoreline change and investigates the influence of surficial geology on shoreline dynamics b...
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Halifax, N.S. : Saint Mary's University
2022
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ftstmarysunivca:oai:library2:01/30931 2023-05-15T15:07:48+02:00 Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic Extensive erosion of lacustrine coastlines on Pelly Island (NWT, Canada) Malenfant, Francois Van Proosdij, Danika, 1969- Northwest Territories 2022-04 application/pdf http://library2.smu.ca/xmlui/handle/01/30931 en eng Halifax, N.S. : Saint Mary's University http://library2.smu.ca/xmlui/handle/01/30931 Coast changes -- Environmental aspects -- Mackenzie River Delta (N.W.T. and Yukon) Shorelines -- Mackenzie River Delta (N.W.T. and Yukon) Text 2022 ftstmarysunivca 2022-07-31T17:31:51Z 1 online resource (68 pages) : illustrations (chiefly colour), maps (chiefly colour), charts (some colour) Includes abstract. Includes bibliographical references (pages 61-68). This paper quantifies rates of shoreline change and investigates the influence of surficial geology on shoreline dynamics between 1950 and 2018 on Pelly Island, located 10 km off the Mackenzie Delta. Long-term changes in shoreline position were calculated using imagery analysis and Analysing Moving Boundaries Using R (AMBUR), and short-term volumetric erosion was calculated using UAV-SfM methods. The influence of shoreline exposure to predominant storm direction and influence of surficial geology were examined for Northwest and Southeast zones. The average annual linear regression rate (LRR) rate during the 1950-2018 observation period was -3.8 m∙a -1 . The end point rate (EPR) was calculated for six observation periods: 1950-1972, 1972-1985, 1985-2000, 2000-2018, 2013-2018. A mean EPR of -5.5 ± 0.7 m∙a -1 was calculated for the 2000-2018 period, and a maximum retreat rate of 46.7 ± 2.1 m∙a -1 was recorded during the 2013-2018 observation period. Text Arctic Beaufort Sea Inuvialuit Mackenzie Delta Mackenzie river Northwest Territories Yukon Saint Mary's University, Halifax: Institutional Repository Arctic Canada Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Mackenzie River Northwest Territories Pelly Island ENVELOPE(-135.506,-135.506,69.600,69.600) Yukon |
institution |
Open Polar |
collection |
Saint Mary's University, Halifax: Institutional Repository |
op_collection_id |
ftstmarysunivca |
language |
English |
topic |
Coast changes -- Environmental aspects -- Mackenzie River Delta (N.W.T. and Yukon) Shorelines -- Mackenzie River Delta (N.W.T. and Yukon) |
spellingShingle |
Coast changes -- Environmental aspects -- Mackenzie River Delta (N.W.T. and Yukon) Shorelines -- Mackenzie River Delta (N.W.T. and Yukon) Malenfant, Francois Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic |
topic_facet |
Coast changes -- Environmental aspects -- Mackenzie River Delta (N.W.T. and Yukon) Shorelines -- Mackenzie River Delta (N.W.T. and Yukon) |
description |
1 online resource (68 pages) : illustrations (chiefly colour), maps (chiefly colour), charts (some colour) Includes abstract. Includes bibliographical references (pages 61-68). This paper quantifies rates of shoreline change and investigates the influence of surficial geology on shoreline dynamics between 1950 and 2018 on Pelly Island, located 10 km off the Mackenzie Delta. Long-term changes in shoreline position were calculated using imagery analysis and Analysing Moving Boundaries Using R (AMBUR), and short-term volumetric erosion was calculated using UAV-SfM methods. The influence of shoreline exposure to predominant storm direction and influence of surficial geology were examined for Northwest and Southeast zones. The average annual linear regression rate (LRR) rate during the 1950-2018 observation period was -3.8 m∙a -1 . The end point rate (EPR) was calculated for six observation periods: 1950-1972, 1972-1985, 1985-2000, 2000-2018, 2013-2018. A mean EPR of -5.5 ± 0.7 m∙a -1 was calculated for the 2000-2018 period, and a maximum retreat rate of 46.7 ± 2.1 m∙a -1 was recorded during the 2013-2018 observation period. |
author2 |
Van Proosdij, Danika, 1969- |
format |
Text |
author |
Malenfant, Francois |
author_facet |
Malenfant, Francois |
author_sort |
Malenfant, Francois |
title |
Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic |
title_short |
Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic |
title_full |
Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic |
title_fullStr |
Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic |
title_full_unstemmed |
Rapid coastal erosion of ice-bonded deposits on Pelly Island, southeastern Beaufort Sea, Inuvialuit Settlement Region, western Canadian Arctic |
title_sort |
rapid coastal erosion of ice-bonded deposits on pelly island, southeastern beaufort sea, inuvialuit settlement region, western canadian arctic |
publisher |
Halifax, N.S. : Saint Mary's University |
publishDate |
2022 |
url |
http://library2.smu.ca/xmlui/handle/01/30931 |
op_coverage |
Northwest Territories |
long_lat |
ENVELOPE(-136.672,-136.672,68.833,68.833) ENVELOPE(-135.506,-135.506,69.600,69.600) |
geographic |
Arctic Canada Mackenzie Delta Mackenzie River Northwest Territories Pelly Island Yukon |
geographic_facet |
Arctic Canada Mackenzie Delta Mackenzie River Northwest Territories Pelly Island Yukon |
genre |
Arctic Beaufort Sea Inuvialuit Mackenzie Delta Mackenzie river Northwest Territories Yukon |
genre_facet |
Arctic Beaufort Sea Inuvialuit Mackenzie Delta Mackenzie river Northwest Territories Yukon |
op_relation |
http://library2.smu.ca/xmlui/handle/01/30931 |
_version_ |
1766339226866024448 |