Where is mineral ballast important for surface export of particulate organic carbon in the ocean?
Correlations between particulate organic carbon (POC) and mineral fluxes in the deep ocean have inspired the inclusion of “ballast effect” parameterizations in carbon cycle models. A recent study demonstrated regional variability in the effect of ballast minerals on the flux of POC in the deep ocean...
Published in: | Geophysical Research Letters |
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Online Access: | http://hdl.handle.net/10220/24597 https://doi.org/10.1002/2014GL061678 |
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ftnanyangtu:oai:dr.ntu.edu.sg:10220/24597 2023-05-15T15:05:08+02:00 Where is mineral ballast important for surface export of particulate organic carbon in the ocean? Le Moigne, Frédéric A.C. Pabortsava, Katsiaryna Marcinko, Charlotte L.J. Martin, Patrick Sanders, Richard J. Earth Observatory of Singapore 2014 9 p. http://hdl.handle.net/10220/24597 https://doi.org/10.1002/2014GL061678 en eng Geophysical research letters Le Moigne, F. A., Pabortsava, K., Marcinko, C. L., Martin, P., & Sanders, R. J. (2014). Where is mineral ballast important for surface export of particulate organic carbon in the ocean? Geophysical research letters, 41(23), 8460–8468. 0094-8276 http://hdl.handle.net/10220/24597 http://dx.doi.org/10.1002/2014GL061678 © 2014 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY DRNTU::Science::Geology::Mineralogy Journal Article 2014 ftnanyangtu https://doi.org/10.1002/2014GL061678 2019-05-24T19:30:05Z Correlations between particulate organic carbon (POC) and mineral fluxes in the deep ocean have inspired the inclusion of “ballast effect” parameterizations in carbon cycle models. A recent study demonstrated regional variability in the effect of ballast minerals on the flux of POC in the deep ocean. We have undertaken a similar analysis of shallow export data from the Arctic, Atlantic, and Southern Oceans. Mineral ballasting is of greatest importance in the high-latitude North Atlantic, where 60% of the POC flux is associated with ballast minerals. This fraction drops to around 40% in the Southern Ocean. The remainder of the export flux is not associated with minerals, and this unballasted fraction thus often dominates the export flux. The proportion of mineral-associated POC flux often scales with regional variation in export efficiency (the proportion of primary production that is exported). However, local discrepancies suggest that regional differences in ecology also impact the magnitude of surface export. We propose that POC export will not respond equally across all high-latitude regions to possible future changes in ballast availability. Published version Article in Journal/Newspaper Arctic North Atlantic Southern Ocean DR-NTU (Digital Repository at Nanyang Technological University, Singapore) Arctic Southern Ocean Geophysical Research Letters 41 23 8460 8468 |
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Open Polar |
collection |
DR-NTU (Digital Repository at Nanyang Technological University, Singapore) |
op_collection_id |
ftnanyangtu |
language |
English |
topic |
DRNTU::Science::Geology::Mineralogy |
spellingShingle |
DRNTU::Science::Geology::Mineralogy Le Moigne, Frédéric A.C. Pabortsava, Katsiaryna Marcinko, Charlotte L.J. Martin, Patrick Sanders, Richard J. Where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
topic_facet |
DRNTU::Science::Geology::Mineralogy |
description |
Correlations between particulate organic carbon (POC) and mineral fluxes in the deep ocean have inspired the inclusion of “ballast effect” parameterizations in carbon cycle models. A recent study demonstrated regional variability in the effect of ballast minerals on the flux of POC in the deep ocean. We have undertaken a similar analysis of shallow export data from the Arctic, Atlantic, and Southern Oceans. Mineral ballasting is of greatest importance in the high-latitude North Atlantic, where 60% of the POC flux is associated with ballast minerals. This fraction drops to around 40% in the Southern Ocean. The remainder of the export flux is not associated with minerals, and this unballasted fraction thus often dominates the export flux. The proportion of mineral-associated POC flux often scales with regional variation in export efficiency (the proportion of primary production that is exported). However, local discrepancies suggest that regional differences in ecology also impact the magnitude of surface export. We propose that POC export will not respond equally across all high-latitude regions to possible future changes in ballast availability. Published version |
author2 |
Earth Observatory of Singapore |
format |
Article in Journal/Newspaper |
author |
Le Moigne, Frédéric A.C. Pabortsava, Katsiaryna Marcinko, Charlotte L.J. Martin, Patrick Sanders, Richard J. |
author_facet |
Le Moigne, Frédéric A.C. Pabortsava, Katsiaryna Marcinko, Charlotte L.J. Martin, Patrick Sanders, Richard J. |
author_sort |
Le Moigne, Frédéric A.C. |
title |
Where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
title_short |
Where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
title_full |
Where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
title_fullStr |
Where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
title_full_unstemmed |
Where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
title_sort |
where is mineral ballast important for surface export of particulate organic carbon in the ocean? |
publishDate |
2014 |
url |
http://hdl.handle.net/10220/24597 https://doi.org/10.1002/2014GL061678 |
geographic |
Arctic Southern Ocean |
geographic_facet |
Arctic Southern Ocean |
genre |
Arctic North Atlantic Southern Ocean |
genre_facet |
Arctic North Atlantic Southern Ocean |
op_relation |
Geophysical research letters Le Moigne, F. A., Pabortsava, K., Marcinko, C. L., Martin, P., & Sanders, R. J. (2014). Where is mineral ballast important for surface export of particulate organic carbon in the ocean? Geophysical research letters, 41(23), 8460–8468. 0094-8276 http://hdl.handle.net/10220/24597 http://dx.doi.org/10.1002/2014GL061678 |
op_rights |
© 2014 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2014GL061678 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
23 |
container_start_page |
8460 |
op_container_end_page |
8468 |
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1766336888656887808 |