Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream
Discharges of freshwater into the Arctic Ocean from rivers in Eurasia and North America account for approximately 11% of the global riverine freshwater input, and contain weathering products including dissolved continental boron. Much of this freshwater flows into the North Atlantic Ocean, primarily...
Published in: | Marine Chemistry |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
ELSEVIER
2020
|
Subjects: | |
Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/107861 https://doi.org/10.1016/j.marchem.2020.103809 |
id |
ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/107861 |
---|---|
record_format |
openpolar |
spelling |
ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/107861 2023-05-15T14:48:23+02:00 Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream Olafsson J. Lee K. Olafsdottir S.R. Benoit-Cattin A. Lee C.-H. Kim M. Lee K. Lee C.-H. Kim M. 2020-08 https://oasis.postech.ac.kr/handle/2014.oak/107861 https://doi.org/10.1016/j.marchem.2020.103809 English eng ELSEVIER MARINE CHEMISTRY Chemistry, Multidisciplinary Oceanography Chemistry 0304-4203 https://oasis.postech.ac.kr/handle/2014.oak/107861 doi:10.1016/j.marchem.2020.103809 42023 MARINE CHEMISTRY, v.224 000552864300003 2-s2.0-85084207530 CARBONIC-ACID SEA DISSOCIATION CONSTANTS SEAWATER PACIFIC RIVERS Article ART 2020 ftponangunivst https://doi.org/10.1016/j.marchem.2020.103809 2022-10-20T21:03:13Z Discharges of freshwater into the Arctic Ocean from rivers in Eurasia and North America account for approximately 11% of the global riverine freshwater input, and contain weathering products including dissolved continental boron. Much of this freshwater flows into the North Atlantic Ocean, primarily via the East Greenland Current carrying the Polar Water with salinity < 34.4. As a result, the input of boron-containing freshwater could cause the boron content in low salinity water to deviate from predictions based on the open ocean ratio for boron to salinity. Significant deviations from predictions would affect carbonate system calculations for seawater in the Arctic. We analysed the boron concentrations and salinity for seawater samples (n = 249; salinity = 30-35) collected primarily from the areas of the East Greenland Current downstream of the influence of freshwater inputs, and from northward flowing Atlantic Water in the vicinity of Iceland. Unexpectedly, the mean boron to salinity ratio of (0.1324 +/- 0.0008 mg kg(-1)parts per thousand(-1) was similar to the ratio for the open ocean (0.1336 mg kg(-1)parts per thousand(-1)). The absence of anomalies in the boron to salinity ratio measured for our samples provides compelling evidence that continental freshwater flowing into the Arctic Ocean probably contains little dissolved boron, and hence has a negligible effect on the boron to salinity ratio in the Arctic Ocean. Our results also indicate that known deviations in the polar water alkalinity from predictions based on the open ocean alkalinity-salinity relationship stem largely from other sources, primarily inputs of carbonate-rich freshwater. 1 1 N scie scopus Article in Journal/Newspaper Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Carbonic acid East Greenland east greenland current Greenland Iceland North Atlantic Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Arctic Arctic Ocean Greenland Pacific Marine Chemistry 224 103809 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
CARBONIC-ACID SEA DISSOCIATION CONSTANTS SEAWATER PACIFIC RIVERS |
spellingShingle |
CARBONIC-ACID SEA DISSOCIATION CONSTANTS SEAWATER PACIFIC RIVERS Olafsson J. Lee K. Olafsdottir S.R. Benoit-Cattin A. Lee C.-H. Kim M. Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream |
topic_facet |
CARBONIC-ACID SEA DISSOCIATION CONSTANTS SEAWATER PACIFIC RIVERS |
description |
Discharges of freshwater into the Arctic Ocean from rivers in Eurasia and North America account for approximately 11% of the global riverine freshwater input, and contain weathering products including dissolved continental boron. Much of this freshwater flows into the North Atlantic Ocean, primarily via the East Greenland Current carrying the Polar Water with salinity < 34.4. As a result, the input of boron-containing freshwater could cause the boron content in low salinity water to deviate from predictions based on the open ocean ratio for boron to salinity. Significant deviations from predictions would affect carbonate system calculations for seawater in the Arctic. We analysed the boron concentrations and salinity for seawater samples (n = 249; salinity = 30-35) collected primarily from the areas of the East Greenland Current downstream of the influence of freshwater inputs, and from northward flowing Atlantic Water in the vicinity of Iceland. Unexpectedly, the mean boron to salinity ratio of (0.1324 +/- 0.0008 mg kg(-1)parts per thousand(-1) was similar to the ratio for the open ocean (0.1336 mg kg(-1)parts per thousand(-1)). The absence of anomalies in the boron to salinity ratio measured for our samples provides compelling evidence that continental freshwater flowing into the Arctic Ocean probably contains little dissolved boron, and hence has a negligible effect on the boron to salinity ratio in the Arctic Ocean. Our results also indicate that known deviations in the polar water alkalinity from predictions based on the open ocean alkalinity-salinity relationship stem largely from other sources, primarily inputs of carbonate-rich freshwater. 1 1 N scie scopus |
author2 |
Lee K. Lee C.-H. Kim M. |
format |
Article in Journal/Newspaper |
author |
Olafsson J. Lee K. Olafsdottir S.R. Benoit-Cattin A. Lee C.-H. Kim M. |
author_facet |
Olafsson J. Lee K. Olafsdottir S.R. Benoit-Cattin A. Lee C.-H. Kim M. |
author_sort |
Olafsson J. |
title |
Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream |
title_short |
Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream |
title_full |
Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream |
title_fullStr |
Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream |
title_full_unstemmed |
Boron to salinity ratios for Atlantic, Arctic and Polar Waters: A view from downstream |
title_sort |
boron to salinity ratios for atlantic, arctic and polar waters: a view from downstream |
publisher |
ELSEVIER |
publishDate |
2020 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/107861 https://doi.org/10.1016/j.marchem.2020.103809 |
geographic |
Arctic Arctic Ocean Greenland Pacific |
geographic_facet |
Arctic Arctic Ocean Greenland Pacific |
genre |
Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Carbonic acid East Greenland east greenland current Greenland Iceland North Atlantic |
genre_facet |
Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Carbonic acid East Greenland east greenland current Greenland Iceland North Atlantic |
op_relation |
MARINE CHEMISTRY Chemistry, Multidisciplinary Oceanography Chemistry 0304-4203 https://oasis.postech.ac.kr/handle/2014.oak/107861 doi:10.1016/j.marchem.2020.103809 42023 MARINE CHEMISTRY, v.224 000552864300003 2-s2.0-85084207530 |
op_doi |
https://doi.org/10.1016/j.marchem.2020.103809 |
container_title |
Marine Chemistry |
container_volume |
224 |
container_start_page |
103809 |
_version_ |
1766319463467057152 |