Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard
Abstract Recent research has identified differences in processes contributing to suspended sediment concentration (SSC) dynamics in proglacial streams between High Arctic and alpine catchments, but does not examine processes explicitly linked to the periglacial environment. Three glacierized basins...
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crwiley:10.1002/hyp.5759 2024-09-15T18:00:35+00:00 Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard Irvine‐Fynn, T. D. L. Moorman, B. J. Willis, I. C. Sjogren, D. B. Hodson, A. J. Mumford, P. N. Walter, F. S. A. Williams, J. L. M. 2005 http://dx.doi.org/10.1002/hyp.5759 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.5759 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.5759 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 19, issue 1, page 115-135 ISSN 0885-6087 1099-1085 journal-article 2005 crwiley https://doi.org/10.1002/hyp.5759 2024-08-22T04:17:13Z Abstract Recent research has identified differences in processes contributing to suspended sediment concentration (SSC) dynamics in proglacial streams between High Arctic and alpine catchments, but does not examine processes explicitly linked to the periglacial environment. Three glacierized basins were studied: Austre Brøggerbreen and Midre Lovénbreen, Svalbard (79°N, 12°E) and Glacier B28, unofficially named Stagnation Glacier, Bylot Island, Nunavut (73°N, 78°W). SSC variations were modelled from continuous turbidity, discharge and meteorological data throughout the summer months. Three statistical tools were utilized: principal component analysis, change‐point analysis and multivariate regression. These are shown to be effective in identifying subperiods of distinctive geocryological and glaciofluvial characteristics. Multivariate regression for the subseasons included autoregressive integrated moving‐average modelling, and showed that SSC variations were related not only to discharge variability, but also to fluctuations in energy fluxes. The results are interpreted in terms of spatio‐temporal changes in sediment mobilization and supply associated with changes in the relative importance of fluvial, glacial and periglacial processes. This evidence supports the notion of important linkages between glacial, fluvial and periglacial systems, but exemplifies distinct variability between High Arctic glaciers. Copyright © 2005 John Wiley & Sons, Ltd. Article in Journal/Newspaper Bylot Island glacier Nunavut Svalbard Spitsbergen Wiley Online Library Hydrological Processes 19 1 115 135 |
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Wiley Online Library |
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English |
description |
Abstract Recent research has identified differences in processes contributing to suspended sediment concentration (SSC) dynamics in proglacial streams between High Arctic and alpine catchments, but does not examine processes explicitly linked to the periglacial environment. Three glacierized basins were studied: Austre Brøggerbreen and Midre Lovénbreen, Svalbard (79°N, 12°E) and Glacier B28, unofficially named Stagnation Glacier, Bylot Island, Nunavut (73°N, 78°W). SSC variations were modelled from continuous turbidity, discharge and meteorological data throughout the summer months. Three statistical tools were utilized: principal component analysis, change‐point analysis and multivariate regression. These are shown to be effective in identifying subperiods of distinctive geocryological and glaciofluvial characteristics. Multivariate regression for the subseasons included autoregressive integrated moving‐average modelling, and showed that SSC variations were related not only to discharge variability, but also to fluctuations in energy fluxes. The results are interpreted in terms of spatio‐temporal changes in sediment mobilization and supply associated with changes in the relative importance of fluvial, glacial and periglacial processes. This evidence supports the notion of important linkages between glacial, fluvial and periglacial systems, but exemplifies distinct variability between High Arctic glaciers. Copyright © 2005 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Irvine‐Fynn, T. D. L. Moorman, B. J. Willis, I. C. Sjogren, D. B. Hodson, A. J. Mumford, P. N. Walter, F. S. A. Williams, J. L. M. |
spellingShingle |
Irvine‐Fynn, T. D. L. Moorman, B. J. Willis, I. C. Sjogren, D. B. Hodson, A. J. Mumford, P. N. Walter, F. S. A. Williams, J. L. M. Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard |
author_facet |
Irvine‐Fynn, T. D. L. Moorman, B. J. Willis, I. C. Sjogren, D. B. Hodson, A. J. Mumford, P. N. Walter, F. S. A. Williams, J. L. M. |
author_sort |
Irvine‐Fynn, T. D. L. |
title |
Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard |
title_short |
Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard |
title_full |
Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard |
title_fullStr |
Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard |
title_full_unstemmed |
Geocryological processes linked to High Arctic proglacial stream suspended sediment dynamics: examples from Bylot Island, Nunavut, and Spitsbergen, Svalbard |
title_sort |
geocryological processes linked to high arctic proglacial stream suspended sediment dynamics: examples from bylot island, nunavut, and spitsbergen, svalbard |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1002/hyp.5759 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.5759 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.5759 |
genre |
Bylot Island glacier Nunavut Svalbard Spitsbergen |
genre_facet |
Bylot Island glacier Nunavut Svalbard Spitsbergen |
op_source |
Hydrological Processes volume 19, issue 1, page 115-135 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.5759 |
container_title |
Hydrological Processes |
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19 |
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1 |
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115 |
op_container_end_page |
135 |
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1810437747133906944 |