Analysis of trends in annual streamflow to the Arctic Ocean
Abstract There is increasing interest in the magnitude of the flow of freshwater to the Arctic Ocean due to its impacts on the biogeophysical and socio‐economic systems in the north and its influence on global climate. This study examines freshwater flow based on a dataset of 72 rivers that either d...
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crwiley:10.1002/hyp.13392 2024-04-28T08:05:57+00:00 Analysis of trends in annual streamflow to the Arctic Ocean Durocher, Martin Requena, Ana I. Burn, Donald H. Pellerin, Jennifer Environment and Climate Change Canada 2019 http://dx.doi.org/10.1002/hyp.13392 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.13392 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.13392 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.13392 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 33, issue 7, page 1143-1151 ISSN 0885-6087 1099-1085 Water Science and Technology journal-article 2019 crwiley https://doi.org/10.1002/hyp.13392 2024-04-05T07:42:55Z Abstract There is increasing interest in the magnitude of the flow of freshwater to the Arctic Ocean due to its impacts on the biogeophysical and socio‐economic systems in the north and its influence on global climate. This study examines freshwater flow based on a dataset of 72 rivers that either directly or indirectly contribute flow to the Arctic Ocean or reflect the hydrologic regime of areas contributing flow to the Arctic Ocean. Annual streamflow for the 72 rivers is categorized as to the nature and location of the contribution to the Arctic Ocean, and composite series of annual flows are determined for each category for the period 1975 to 2015. A trend analysis is then conducted for the annual discharge series assembled for each category. The results reveal a general increase in freshwater flow to the Arctic Ocean with this increase being more prominent from the Eurasian rivers than from the North American rivers. A comparison with trends obtained from an earlier study ending in 2000 indicates similar trend response from the Eurasian rivers, but dramatic differences from some of the North American rivers. A total annual discharge increase of 8.7 km 3 /y/y is found, with an annual discharge increase of 5.8 km 3 /y/y observed for the rivers directly flowing to the Arctic Ocean. The influence of annual or seasonal climate oscillation indices on annual discharge series is also assessed. Several river categories are found to have significant correlations with the Arctic Oscillation, the North Atlantic Oscillation, or the Pacific Decadal Oscillation. However, no significant association with climate indices is found for the river categories leading to the largest freshwater contribution to the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean North Atlantic North Atlantic oscillation Wiley Online Library Hydrological Processes 33 7 1143 1151 |
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Wiley Online Library |
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English |
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Water Science and Technology |
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Water Science and Technology Durocher, Martin Requena, Ana I. Burn, Donald H. Pellerin, Jennifer Analysis of trends in annual streamflow to the Arctic Ocean |
topic_facet |
Water Science and Technology |
description |
Abstract There is increasing interest in the magnitude of the flow of freshwater to the Arctic Ocean due to its impacts on the biogeophysical and socio‐economic systems in the north and its influence on global climate. This study examines freshwater flow based on a dataset of 72 rivers that either directly or indirectly contribute flow to the Arctic Ocean or reflect the hydrologic regime of areas contributing flow to the Arctic Ocean. Annual streamflow for the 72 rivers is categorized as to the nature and location of the contribution to the Arctic Ocean, and composite series of annual flows are determined for each category for the period 1975 to 2015. A trend analysis is then conducted for the annual discharge series assembled for each category. The results reveal a general increase in freshwater flow to the Arctic Ocean with this increase being more prominent from the Eurasian rivers than from the North American rivers. A comparison with trends obtained from an earlier study ending in 2000 indicates similar trend response from the Eurasian rivers, but dramatic differences from some of the North American rivers. A total annual discharge increase of 8.7 km 3 /y/y is found, with an annual discharge increase of 5.8 km 3 /y/y observed for the rivers directly flowing to the Arctic Ocean. The influence of annual or seasonal climate oscillation indices on annual discharge series is also assessed. Several river categories are found to have significant correlations with the Arctic Oscillation, the North Atlantic Oscillation, or the Pacific Decadal Oscillation. However, no significant association with climate indices is found for the river categories leading to the largest freshwater contribution to the Arctic Ocean. |
author2 |
Environment and Climate Change Canada |
format |
Article in Journal/Newspaper |
author |
Durocher, Martin Requena, Ana I. Burn, Donald H. Pellerin, Jennifer |
author_facet |
Durocher, Martin Requena, Ana I. Burn, Donald H. Pellerin, Jennifer |
author_sort |
Durocher, Martin |
title |
Analysis of trends in annual streamflow to the Arctic Ocean |
title_short |
Analysis of trends in annual streamflow to the Arctic Ocean |
title_full |
Analysis of trends in annual streamflow to the Arctic Ocean |
title_fullStr |
Analysis of trends in annual streamflow to the Arctic Ocean |
title_full_unstemmed |
Analysis of trends in annual streamflow to the Arctic Ocean |
title_sort |
analysis of trends in annual streamflow to the arctic ocean |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/hyp.13392 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.13392 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.13392 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.13392 |
genre |
Arctic Arctic Ocean North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Arctic Ocean North Atlantic North Atlantic oscillation |
op_source |
Hydrological Processes volume 33, issue 7, page 1143-1151 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.13392 |
container_title |
Hydrological Processes |
container_volume |
33 |
container_issue |
7 |
container_start_page |
1143 |
op_container_end_page |
1151 |
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1797575688454144000 |