� 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean
Production and remineralization of carbon in the Eurasian sector have been estimated based on a combined data set of the Oden—91 and Polarstern—93 (ARK IX—4) expeditions. This sector includes the deep Nansen and Amundsen Basins and their linked shelf seas, i.e., the Barents, Kara, and Laptev Seas. T...
Main Authors: | , , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.1992 http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.419.1992 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.419.1992 2023-05-15T14:58:46+02:00 � 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean Kristina Olsson Leif G. Anderson Markus Frank Anna Luchetta William Smethie The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.1992 http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.1992 http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf Present addres text ftciteseerx 2016-01-08T03:51:50Z Production and remineralization of carbon in the Eurasian sector have been estimated based on a combined data set of the Oden—91 and Polarstern—93 (ARK IX—4) expeditions. This sector includes the deep Nansen and Amundsen Basins and their linked shelf seas, i.e., the Barents, Kara, and Laptev Seas. The water masses in this region are composed of Atlantic water, river runoff, and sea ice-melt water. The fractionation between these source waters is elucidated from the � 18 O–salinity relation and conservation of mass. By combining preformed nitrate concentrations of the source waters with the fractionation model and the measured nitrate concentrations, nitrate deficits and excesses are calculated. These concentrations are then converted to carbon equivalents by applying a C/N ratio, whereby a measure of apparent carbon utilization (ACU) is obtained. From the relative inventory of ACU along the slope and deep basin sections, we conclude that the shelf areas are the dominant productivity sites and that the productivity signal is transported to all water masses in the Eurasian Basin. The flux of utilized carbon from the Barents–Kara and Laptev Seas is about 0.022 Gton C yr �1. The Arctic Ocean was once regarded as the most oligotrophic of oceans (e.g., Platt and Subba Rao 1975) due to Text Arctic Arctic Ocean laptev Nansen Sea ice Unknown Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Present addres |
spellingShingle |
Present addres Kristina Olsson Leif G. Anderson Markus Frank Anna Luchetta William Smethie � 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean |
topic_facet |
Present addres |
description |
Production and remineralization of carbon in the Eurasian sector have been estimated based on a combined data set of the Oden—91 and Polarstern—93 (ARK IX—4) expeditions. This sector includes the deep Nansen and Amundsen Basins and their linked shelf seas, i.e., the Barents, Kara, and Laptev Seas. The water masses in this region are composed of Atlantic water, river runoff, and sea ice-melt water. The fractionation between these source waters is elucidated from the � 18 O–salinity relation and conservation of mass. By combining preformed nitrate concentrations of the source waters with the fractionation model and the measured nitrate concentrations, nitrate deficits and excesses are calculated. These concentrations are then converted to carbon equivalents by applying a C/N ratio, whereby a measure of apparent carbon utilization (ACU) is obtained. From the relative inventory of ACU along the slope and deep basin sections, we conclude that the shelf areas are the dominant productivity sites and that the productivity signal is transported to all water masses in the Eurasian Basin. The flux of utilized carbon from the Barents–Kara and Laptev Seas is about 0.022 Gton C yr �1. The Arctic Ocean was once regarded as the most oligotrophic of oceans (e.g., Platt and Subba Rao 1975) due to |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Kristina Olsson Leif G. Anderson Markus Frank Anna Luchetta William Smethie |
author_facet |
Kristina Olsson Leif G. Anderson Markus Frank Anna Luchetta William Smethie |
author_sort |
Kristina Olsson |
title |
� 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean |
title_short |
� 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean |
title_full |
� 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean |
title_fullStr |
� 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean |
title_full_unstemmed |
� 1999, by the American Society of Limnology and Oceanography, Inc. Carbon utilization in the Eurasian sector of the Arctic Ocean |
title_sort |
� 1999, by the american society of limnology and oceanography, inc. carbon utilization in the eurasian sector of the arctic ocean |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.1992 http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean laptev Nansen Sea ice |
genre_facet |
Arctic Arctic Ocean laptev Nansen Sea ice |
op_source |
http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.1992 http://www.aslo.org/lo/toc/vol_44/issue_1/0095.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766330895766126592 |