Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean
Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 110 (2005): G02013, doi:10.1029/2005JG000031. Concentrations o...
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Online Access: | https://hdl.handle.net/1912/1288 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/1288 2023-05-15T14:46:08+02:00 Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean Cooper, Lee W. Benner, Ronald McClelland, James W. Peterson, Bruce J. Holmes, Robert M. Raymond, Peter A. Hansell, Dennis A. Grebmeier, Jacqueline M. Codispoti, Louis A. 2005-12-07 application/pdf https://hdl.handle.net/1912/1288 en_US eng American Geophysical Union https://doi.org/10.1029/2005JG000031 Journal of Geophysical Research 110 (2005): G02013 https://hdl.handle.net/1912/1288 doi:10.1029/2005JG000031 Journal of Geophysical Research 110 (2005): G02013 doi:10.1029/2005JG000031 Article 2005 ftwhoas https://doi.org/10.1029/2005JG000031 2022-05-28T22:57:10Z Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 110 (2005): G02013, doi:10.1029/2005JG000031. Concentrations of dissolved organic carbon (DOC) and δ18O values have been determined following sampling of runoff from a number of major arctic rivers, including the Ob, Yenisey, Lena, Kolyma, Mackenzie and Yukon in 2003-2004. These data are considered in conjunction with marine data for DOC, δ18O values, nutrients, salinity, and fluorometric indicators of DOC that were obtained as part of the Shelf-Basin Interactions program at the continental shelf-basin boundary of the Chukchi and Beaufort Seas. These marine data indicate that the freshwater component is most likely derived from regional sources, such as the Mackenzie, the Bering Strait inflow and possibly eastern Siberian rivers, including the Kolyma, or the Lena but not rivers further west in the Eurasian arctic. Contributions of freshwater from melted sea ice to marine surface waters appeared to be insignificant over annual cycles compared to runoff, although on a seasonal basis, freshwater from melted sea ice was locally dominant following a major sea-ice retreat into the Canada Basin in 2002. DOC concentrations were correlated with the runoff fraction, with an apparent meteoric water DOC concentration of 174 ± 1 μM (standard error). This concentration is lower than the flow-weighted concentrations measured at river mouths of the five largest Arctic rivers (358 to 917 μM), indicating that removal of terrigenous DOC during transport through estuaries, shelves and in the deep basin. DOC data indicate that flow-weighted concentrations in the two largest North American arctic rivers, the Yukon (625μM) and the Mackenzie (382 μM), are lower than in the three largest Eurasian arctic rivers, the Ob (825 μM), the Yenesey (858 μM) and the Lena (917 μM). A fluorometric indicator of ... Article in Journal/Newspaper Arctic Arctic Ocean Bering Strait canada basin Chukchi Sea ice Yukon Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Arctic Ocean Bering Strait Canada Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Yenisey ENVELOPE(82.680,82.680,71.828,71.828) Yukon Journal of Geophysical Research: Biogeosciences 110 G2 n/a n/a |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
description |
Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 110 (2005): G02013, doi:10.1029/2005JG000031. Concentrations of dissolved organic carbon (DOC) and δ18O values have been determined following sampling of runoff from a number of major arctic rivers, including the Ob, Yenisey, Lena, Kolyma, Mackenzie and Yukon in 2003-2004. These data are considered in conjunction with marine data for DOC, δ18O values, nutrients, salinity, and fluorometric indicators of DOC that were obtained as part of the Shelf-Basin Interactions program at the continental shelf-basin boundary of the Chukchi and Beaufort Seas. These marine data indicate that the freshwater component is most likely derived from regional sources, such as the Mackenzie, the Bering Strait inflow and possibly eastern Siberian rivers, including the Kolyma, or the Lena but not rivers further west in the Eurasian arctic. Contributions of freshwater from melted sea ice to marine surface waters appeared to be insignificant over annual cycles compared to runoff, although on a seasonal basis, freshwater from melted sea ice was locally dominant following a major sea-ice retreat into the Canada Basin in 2002. DOC concentrations were correlated with the runoff fraction, with an apparent meteoric water DOC concentration of 174 ± 1 μM (standard error). This concentration is lower than the flow-weighted concentrations measured at river mouths of the five largest Arctic rivers (358 to 917 μM), indicating that removal of terrigenous DOC during transport through estuaries, shelves and in the deep basin. DOC data indicate that flow-weighted concentrations in the two largest North American arctic rivers, the Yukon (625μM) and the Mackenzie (382 μM), are lower than in the three largest Eurasian arctic rivers, the Ob (825 μM), the Yenesey (858 μM) and the Lena (917 μM). A fluorometric indicator of ... |
format |
Article in Journal/Newspaper |
author |
Cooper, Lee W. Benner, Ronald McClelland, James W. Peterson, Bruce J. Holmes, Robert M. Raymond, Peter A. Hansell, Dennis A. Grebmeier, Jacqueline M. Codispoti, Louis A. |
spellingShingle |
Cooper, Lee W. Benner, Ronald McClelland, James W. Peterson, Bruce J. Holmes, Robert M. Raymond, Peter A. Hansell, Dennis A. Grebmeier, Jacqueline M. Codispoti, Louis A. Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean |
author_facet |
Cooper, Lee W. Benner, Ronald McClelland, James W. Peterson, Bruce J. Holmes, Robert M. Raymond, Peter A. Hansell, Dennis A. Grebmeier, Jacqueline M. Codispoti, Louis A. |
author_sort |
Cooper, Lee W. |
title |
Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean |
title_short |
Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean |
title_full |
Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean |
title_fullStr |
Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean |
title_full_unstemmed |
Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean |
title_sort |
linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the arctic ocean |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
https://hdl.handle.net/1912/1288 |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) ENVELOPE(82.680,82.680,71.828,71.828) |
geographic |
Arctic Arctic Ocean Bering Strait Canada Kolyma Yenisey Yukon |
geographic_facet |
Arctic Arctic Ocean Bering Strait Canada Kolyma Yenisey Yukon |
genre |
Arctic Arctic Ocean Bering Strait canada basin Chukchi Sea ice Yukon |
genre_facet |
Arctic Arctic Ocean Bering Strait canada basin Chukchi Sea ice Yukon |
op_source |
Journal of Geophysical Research 110 (2005): G02013 doi:10.1029/2005JG000031 |
op_relation |
https://doi.org/10.1029/2005JG000031 Journal of Geophysical Research 110 (2005): G02013 https://hdl.handle.net/1912/1288 doi:10.1029/2005JG000031 |
op_doi |
https://doi.org/10.1029/2005JG000031 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
110 |
container_issue |
G2 |
container_start_page |
n/a |
op_container_end_page |
n/a |
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1766317391304720384 |