Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF
In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northward and the Deep Western Boundary Current (DWBC) flowing southward. Here we analyze data from the OVIDE section (GO-SHIP A25 Portugal-G...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
2020
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2020.593757.s001 https://figshare.com/articles/dataset/Data_Sheet_1_North_Atlantic_Western_Boundary_Currents_Are_Intense_Dissolved_Organic_Carbon_Streams_PDF/13294307 |
id |
ftfrontimediafig:oai:figshare.com:article/13294307 |
---|---|
record_format |
openpolar |
spelling |
ftfrontimediafig:oai:figshare.com:article/13294307 2023-05-15T16:03:52+02:00 Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF Marcos Fontela Fiz F. Pérez Herlé Mercier Pascale Lherminier 2020-11-27T04:44:40Z https://doi.org/10.3389/fmars.2020.593757.s001 https://figshare.com/articles/dataset/Data_Sheet_1_North_Atlantic_Western_Boundary_Currents_Are_Intense_Dissolved_Organic_Carbon_Streams_PDF/13294307 unknown doi:10.3389/fmars.2020.593757.s001 https://figshare.com/articles/dataset/Data_Sheet_1_North_Atlantic_Western_Boundary_Currents_Are_Intense_Dissolved_Organic_Carbon_Streams_PDF/13294307 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering dissolved organic carbon North Atlantic carbon budget carbon dioxide biogeochemistry Atlantic Meridional Overturning Circulation Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmars.2020.593757.s001 2020-12-02T23:58:18Z In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northward and the Deep Western Boundary Current (DWBC) flowing southward. Here we analyze data from the OVIDE section (GO-SHIP A25 Portugal-Greenland 40–60°N) that crosses the DWBC and the northward extension of the Gulf Stream, the North Atlantic Current. We show that North Atlantic western boundary currents play a key role in the transport of dissolved organic matter, specifically dissolved organic carbon (DOC). Revisited transports and budgets of DOC with new available data identify the eastern Subpolar North Atlantic (eSPNA) as an important source of locally produced organic matter for the North Atlantic and a key region in the supply of bioavailable DOC to the deep ocean. The East Greenland Current, and its upstream source the East Reykjanes Ridge Current on the eastern flank of the mid-Atlantic ridge, are export pathways of bioavailable DOC toward subtropical latitudes. The fast overturning and subsequent remineralization of DOC produced in the autotrophic eSPNA explains up to 38% of the total oxygen consumption in the deep North Atlantic between the OVIDE section and 24°N. Carbon budgets that do not take into account this organic remineralization process overestimates the natural uptake of carbon dioxide (CO 2 ) from the atmosphere by one third. The inclusion of DOC transports in regional carbon budgets reconciles the estimates of CO 2 uptake in the North Atlantic between model and observations. Dataset East Greenland east greenland current Greenland north atlantic current North Atlantic Frontiers: Figshare Greenland Mid-Atlantic Ridge Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering dissolved organic carbon North Atlantic carbon budget carbon dioxide biogeochemistry Atlantic Meridional Overturning Circulation |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering dissolved organic carbon North Atlantic carbon budget carbon dioxide biogeochemistry Atlantic Meridional Overturning Circulation Marcos Fontela Fiz F. Pérez Herlé Mercier Pascale Lherminier Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering dissolved organic carbon North Atlantic carbon budget carbon dioxide biogeochemistry Atlantic Meridional Overturning Circulation |
description |
In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northward and the Deep Western Boundary Current (DWBC) flowing southward. Here we analyze data from the OVIDE section (GO-SHIP A25 Portugal-Greenland 40–60°N) that crosses the DWBC and the northward extension of the Gulf Stream, the North Atlantic Current. We show that North Atlantic western boundary currents play a key role in the transport of dissolved organic matter, specifically dissolved organic carbon (DOC). Revisited transports and budgets of DOC with new available data identify the eastern Subpolar North Atlantic (eSPNA) as an important source of locally produced organic matter for the North Atlantic and a key region in the supply of bioavailable DOC to the deep ocean. The East Greenland Current, and its upstream source the East Reykjanes Ridge Current on the eastern flank of the mid-Atlantic ridge, are export pathways of bioavailable DOC toward subtropical latitudes. The fast overturning and subsequent remineralization of DOC produced in the autotrophic eSPNA explains up to 38% of the total oxygen consumption in the deep North Atlantic between the OVIDE section and 24°N. Carbon budgets that do not take into account this organic remineralization process overestimates the natural uptake of carbon dioxide (CO 2 ) from the atmosphere by one third. The inclusion of DOC transports in regional carbon budgets reconciles the estimates of CO 2 uptake in the North Atlantic between model and observations. |
format |
Dataset |
author |
Marcos Fontela Fiz F. Pérez Herlé Mercier Pascale Lherminier |
author_facet |
Marcos Fontela Fiz F. Pérez Herlé Mercier Pascale Lherminier |
author_sort |
Marcos Fontela |
title |
Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF |
title_short |
Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF |
title_full |
Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF |
title_fullStr |
Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF |
title_full_unstemmed |
Data_Sheet_1_North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams.PDF |
title_sort |
data_sheet_1_north atlantic western boundary currents are intense dissolved organic carbon streams.pdf |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.593757.s001 https://figshare.com/articles/dataset/Data_Sheet_1_North_Atlantic_Western_Boundary_Currents_Are_Intense_Dissolved_Organic_Carbon_Streams_PDF/13294307 |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Greenland Mid-Atlantic Ridge Reykjanes |
geographic_facet |
Greenland Mid-Atlantic Ridge Reykjanes |
genre |
East Greenland east greenland current Greenland north atlantic current North Atlantic |
genre_facet |
East Greenland east greenland current Greenland north atlantic current North Atlantic |
op_relation |
doi:10.3389/fmars.2020.593757.s001 https://figshare.com/articles/dataset/Data_Sheet_1_North_Atlantic_Western_Boundary_Currents_Are_Intense_Dissolved_Organic_Carbon_Streams_PDF/13294307 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.593757.s001 |
_version_ |
1766399562630561792 |