Increased fluxes of shelf-derived materials to the central Arctic Ocean
Rising temperatures in the Arctic Ocean region are responsible for changes such as reduced ice cover, permafrost thawing, and increased river discharge, which, together, alter nutrient and carbon cycles over the vast Arctic continental shelf. We show that the concentration of radium-228, sourced to...
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2018
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ftrowanuniv:oai:rdw.rowan.edu:see_facpub-1058 2023-05-15T14:33:24+02:00 Increased fluxes of shelf-derived materials to the central Arctic Ocean Kipp, Lauren Charette, Matthew A Moore, Willard S Henderson, Paul B Rigor, Ignatius G 2018-01-03T08:00:00Z application/pdf https://rdw.rowan.edu/see_facpub/56 https://rdw.rowan.edu/cgi/viewcontent.cgi?article=1058&context=see_facpub unknown Rowan Digital Works https://rdw.rowan.edu/see_facpub/56 https://rdw.rowan.edu/cgi/viewcontent.cgi?article=1058&context=see_facpub http://creativecommons.org/licenses/by-nc/4.0/ CC-BY-NC School of Earth & Environment Faculty Scholarship Earth Sciences Environmental Sciences Oceanography and Atmospheric Sciences and Meteorology article 2018 ftrowanuniv 2021-12-28T15:19:32Z Rising temperatures in the Arctic Ocean region are responsible for changes such as reduced ice cover, permafrost thawing, and increased river discharge, which, together, alter nutrient and carbon cycles over the vast Arctic continental shelf. We show that the concentration of radium-228, sourced to seawater through sediment-water exchange processes, has increased substantially in surface waters of the central Arctic Ocean over the past decade. A mass balance model for 228Ra suggests that this increase is due to an intensification of shelf-derived material inputs to the central basin, a source that would also carry elevated concentrations of dissolved organic carbon and nutrients. Therefore, we suggest that significant changes in the nutrient, carbon, and trace metal balances of the Arctic Ocean are underway, with the potential to affect biological productivity and species assemblages in Arctic surface waters. Article in Journal/Newspaper Arctic Arctic Ocean Ice permafrost Rowan University: Rowan Digital Works Arctic Arctic Ocean Central Basin ENVELOPE(43.000,43.000,73.500,73.500) |
institution |
Open Polar |
collection |
Rowan University: Rowan Digital Works |
op_collection_id |
ftrowanuniv |
language |
unknown |
topic |
Earth Sciences Environmental Sciences Oceanography and Atmospheric Sciences and Meteorology |
spellingShingle |
Earth Sciences Environmental Sciences Oceanography and Atmospheric Sciences and Meteorology Kipp, Lauren Charette, Matthew A Moore, Willard S Henderson, Paul B Rigor, Ignatius G Increased fluxes of shelf-derived materials to the central Arctic Ocean |
topic_facet |
Earth Sciences Environmental Sciences Oceanography and Atmospheric Sciences and Meteorology |
description |
Rising temperatures in the Arctic Ocean region are responsible for changes such as reduced ice cover, permafrost thawing, and increased river discharge, which, together, alter nutrient and carbon cycles over the vast Arctic continental shelf. We show that the concentration of radium-228, sourced to seawater through sediment-water exchange processes, has increased substantially in surface waters of the central Arctic Ocean over the past decade. A mass balance model for 228Ra suggests that this increase is due to an intensification of shelf-derived material inputs to the central basin, a source that would also carry elevated concentrations of dissolved organic carbon and nutrients. Therefore, we suggest that significant changes in the nutrient, carbon, and trace metal balances of the Arctic Ocean are underway, with the potential to affect biological productivity and species assemblages in Arctic surface waters. |
format |
Article in Journal/Newspaper |
author |
Kipp, Lauren Charette, Matthew A Moore, Willard S Henderson, Paul B Rigor, Ignatius G |
author_facet |
Kipp, Lauren Charette, Matthew A Moore, Willard S Henderson, Paul B Rigor, Ignatius G |
author_sort |
Kipp, Lauren |
title |
Increased fluxes of shelf-derived materials to the central Arctic Ocean |
title_short |
Increased fluxes of shelf-derived materials to the central Arctic Ocean |
title_full |
Increased fluxes of shelf-derived materials to the central Arctic Ocean |
title_fullStr |
Increased fluxes of shelf-derived materials to the central Arctic Ocean |
title_full_unstemmed |
Increased fluxes of shelf-derived materials to the central Arctic Ocean |
title_sort |
increased fluxes of shelf-derived materials to the central arctic ocean |
publisher |
Rowan Digital Works |
publishDate |
2018 |
url |
https://rdw.rowan.edu/see_facpub/56 https://rdw.rowan.edu/cgi/viewcontent.cgi?article=1058&context=see_facpub |
long_lat |
ENVELOPE(43.000,43.000,73.500,73.500) |
geographic |
Arctic Arctic Ocean Central Basin |
geographic_facet |
Arctic Arctic Ocean Central Basin |
genre |
Arctic Arctic Ocean Ice permafrost |
genre_facet |
Arctic Arctic Ocean Ice permafrost |
op_source |
School of Earth & Environment Faculty Scholarship |
op_relation |
https://rdw.rowan.edu/see_facpub/56 https://rdw.rowan.edu/cgi/viewcontent.cgi?article=1058&context=see_facpub |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_rightsnorm |
CC-BY-NC |
_version_ |
1766306649720487936 |