A pan-arctic evaluation of changes in river discharge during the latter half of the 20th century

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dc.contributor.author McClelland, James W.
dc.contributor.author Dery, Stephen J.
dc.contributor.author Peterson, Bruce J.
dc.contributor.author Holmes, Robert M.
dc.contributor.author Wood, Eric F.
dc.date.accessioned 2006-05-08T13:39:42Z
dc.date.available 2006-05-08T13:39:42Z
dc.date.issued 2006-03-30
dc.description Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 33 (2006): L06715, doi:10.1029/2006GL025753. en
dc.description.abstract Several recent publications have documented changes in river discharge from arctic and subarctic watersheds. Comparison of these findings, however, has been hampered by differences in time periods and methods of analysis. Here we compare changes in discharge from different regions of the pan-arctic watershed using identical time periods and analytical methods. Discharge to the Arctic Ocean increased by 5.6 km3/y/y during 1964-2000, the net result of a large increase from Eurasia moderated by a small decrease from North America. In contrast, discharge to Hudson/James/Ungava Bays decreased by 2.5 km3/y/y during 1964-2000. While this evaluation identifies an overall increase in discharge (~120 km3/y greater discharge at the end of the time period as compared to the beginning for Hudson/James/Unvaga Bays and the Arctic Ocean combined), the contrasting regional trends also highlight the need to understand the consequences of adding/removing freshwater from particular regions of the arctic and subarctic oceans. en
dc.description.sponsorship This work was supported by the Arctic System Science Program of the National Science Foundation (NSF-OPP-0229302, NSF-OPP-0230211, NSF-OPP-0519840) and by the National Oceanic and Atmospheric Administration (NA17RJ2612). en
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dc.identifier.citation Geophysical Research Letters 33 (2006): L06715
dc.identifier.doi 10.1029/2006GL025753
dc.identifier.uri https://hdl.handle.net/1912/924
dc.language.iso en_US en
dc.publisher American Geophysical Union
dc.relation.uri https://doi.org/10.1029/2006GL025753
dc.title A pan-arctic evaluation of changes in river discharge during the latter half of the 20th century en
dc.type Article en
dspace.entity.type Publication
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Table S1: Watershed location (continent), outlet, catchment area, and average 1964–2000 discharge for the 72 rivers included in this study.
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Table S2: Gauge locations, temporal coverage, and correlations between upstream and downstream stations for the 10 small to medium sized Eurasian arctic rivers (less than 60 km3/y) included in the analysis.
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