Terrestrial dissolved organic matter distribution in the North Sea
The flow of terrestrial carbon to rivers and inland waters is a major term in the global carbon cycle. The organic fraction of this flux may be buried, remineralized or ultimately stored in the deep ocean. The latter can only occur if terrestrial organic carbon can pass through the coastal and estua...
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ftplymouthml:oai:plymsea.ac.uk:7915 2023-05-15T17:35:33+02:00 Terrestrial dissolved organic matter distribution in the North Sea Painter, SC Lapworth, DJ Woodward, EMS Kroeger, S Evans, CD Mayor, DJ Sanders, RJ 2018-07-15 text http://plymsea.ac.uk/id/eprint/7915/ http://plymsea.ac.uk/id/eprint/7915/1/1-s2.0-S0048969718306363-main.pdf https://www.sciencedirect.com/science/article/pii/S0048969718306363 https://doi.org/10.1016/j.scitotenv.2018.02.237 en eng http://plymsea.ac.uk/id/eprint/7915/1/1-s2.0-S0048969718306363-main.pdf Painter, SC; Lapworth, DJ; Woodward, EMS; Kroeger, S; Evans, CD; Mayor, DJ; Sanders, RJ. 2018 Terrestrial dissolved organic matter distribution in the North Sea. Science of the Total Environment, 630. 630-647. https://doi.org/10.1016/j.scitotenv.2018.02.237 <https://doi.org/10.1016/j.scitotenv.2018.02.237> cc_by_4 CC-BY Chemistry Marine Sciences Oceanography Publication - Article PeerReviewed 2018 ftplymouthml https://doi.org/10.1016/j.scitotenv.2018.02.237 2022-09-13T05:49:11Z The flow of terrestrial carbon to rivers and inland waters is a major term in the global carbon cycle. The organic fraction of this flux may be buried, remineralized or ultimately stored in the deep ocean. The latter can only occur if terrestrial organic carbon can pass through the coastal and estuarine filter, a process of unknown efficiency. Here, data are presented on the spatial distribution of terrestrial fluorescent and chromophoric dissolved organic matter (FDOM and CDOM, respectively) throughout the North Sea, which receives organic matter from multiple distinct sources. We use FDOM and CDOM as proxies for terrestrial dissolved organic matter (tDOM) to test the hypothesis that tDOM is quantitatively transferred through the North Sea to the open North Atlantic Ocean. Excitation emission matrix fluorescence and parallel factor analysis (EEM-PARAFAC) revealed a single terrestrial humic-like class of compounds whose distribution was restricted to the coastal margins and, via an inverse salinity relationship, to major riverine inputs. Two distinct sources of fluorescent humic-like material were observed associated with the combined outflows of the Rhine, Weser and Elbe rivers in the south-eastern North Sea and the Baltic Sea outflow to the eastern central North Sea. The flux of tDOM from the North Sea to the Atlantic Ocean appears insignificant, although tDOM export may occur through Norwegian coastal waters unsampled in our study. Our analysis suggests that the bulk of tDOM exported from the Northwest European and Scandinavian landmasses is buried or remineralized internally, with potential losses to the atmosphere. This interpretation implies that the residence time in estuarine and coastal systems exerts an important control over the fate of tDOM and needs to be considered when evaluating the role of terrestrial carbon losses in the global carbon cycle. Article in Journal/Newspaper North Atlantic Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Science of The Total Environment 630 630 647 |
institution |
Open Polar |
collection |
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
op_collection_id |
ftplymouthml |
language |
English |
topic |
Chemistry Marine Sciences Oceanography |
spellingShingle |
Chemistry Marine Sciences Oceanography Painter, SC Lapworth, DJ Woodward, EMS Kroeger, S Evans, CD Mayor, DJ Sanders, RJ Terrestrial dissolved organic matter distribution in the North Sea |
topic_facet |
Chemistry Marine Sciences Oceanography |
description |
The flow of terrestrial carbon to rivers and inland waters is a major term in the global carbon cycle. The organic fraction of this flux may be buried, remineralized or ultimately stored in the deep ocean. The latter can only occur if terrestrial organic carbon can pass through the coastal and estuarine filter, a process of unknown efficiency. Here, data are presented on the spatial distribution of terrestrial fluorescent and chromophoric dissolved organic matter (FDOM and CDOM, respectively) throughout the North Sea, which receives organic matter from multiple distinct sources. We use FDOM and CDOM as proxies for terrestrial dissolved organic matter (tDOM) to test the hypothesis that tDOM is quantitatively transferred through the North Sea to the open North Atlantic Ocean. Excitation emission matrix fluorescence and parallel factor analysis (EEM-PARAFAC) revealed a single terrestrial humic-like class of compounds whose distribution was restricted to the coastal margins and, via an inverse salinity relationship, to major riverine inputs. Two distinct sources of fluorescent humic-like material were observed associated with the combined outflows of the Rhine, Weser and Elbe rivers in the south-eastern North Sea and the Baltic Sea outflow to the eastern central North Sea. The flux of tDOM from the North Sea to the Atlantic Ocean appears insignificant, although tDOM export may occur through Norwegian coastal waters unsampled in our study. Our analysis suggests that the bulk of tDOM exported from the Northwest European and Scandinavian landmasses is buried or remineralized internally, with potential losses to the atmosphere. This interpretation implies that the residence time in estuarine and coastal systems exerts an important control over the fate of tDOM and needs to be considered when evaluating the role of terrestrial carbon losses in the global carbon cycle. |
format |
Article in Journal/Newspaper |
author |
Painter, SC Lapworth, DJ Woodward, EMS Kroeger, S Evans, CD Mayor, DJ Sanders, RJ |
author_facet |
Painter, SC Lapworth, DJ Woodward, EMS Kroeger, S Evans, CD Mayor, DJ Sanders, RJ |
author_sort |
Painter, SC |
title |
Terrestrial dissolved organic matter distribution in the North Sea |
title_short |
Terrestrial dissolved organic matter distribution in the North Sea |
title_full |
Terrestrial dissolved organic matter distribution in the North Sea |
title_fullStr |
Terrestrial dissolved organic matter distribution in the North Sea |
title_full_unstemmed |
Terrestrial dissolved organic matter distribution in the North Sea |
title_sort |
terrestrial dissolved organic matter distribution in the north sea |
publishDate |
2018 |
url |
http://plymsea.ac.uk/id/eprint/7915/ http://plymsea.ac.uk/id/eprint/7915/1/1-s2.0-S0048969718306363-main.pdf https://www.sciencedirect.com/science/article/pii/S0048969718306363 https://doi.org/10.1016/j.scitotenv.2018.02.237 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://plymsea.ac.uk/id/eprint/7915/1/1-s2.0-S0048969718306363-main.pdf Painter, SC; Lapworth, DJ; Woodward, EMS; Kroeger, S; Evans, CD; Mayor, DJ; Sanders, RJ. 2018 Terrestrial dissolved organic matter distribution in the North Sea. Science of the Total Environment, 630. 630-647. https://doi.org/10.1016/j.scitotenv.2018.02.237 <https://doi.org/10.1016/j.scitotenv.2018.02.237> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.scitotenv.2018.02.237 |
container_title |
Science of The Total Environment |
container_volume |
630 |
container_start_page |
630 |
op_container_end_page |
647 |
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1766134751185338368 |