Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14
Total organic carbon (TOC) samples were collected at 6 stations spaced ~800 km apart in the eastern South Atlantic, from the Equator to 45°S along 9°W. Analyses were performed by high temperature catalytic oxidation (HTCO) in the base laboratory. Despite the complex advection and mixing patterns of...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.807697 https://doi.org/10.1594/PANGAEA.807697 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807697 2024-09-15T17:40:07+00:00 Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 Alvarez-Salgado, Xose Anton Pérez, Fiz F Ríos, Aida F Doval, María Dolores MEDIAN LATITUDE: -22.550000 * MEDIAN LONGITUDE: -8.566667 * SOUTH-BOUND LATITUDE: -45.000000 * WEST-BOUND LONGITUDE: -9.000000 * NORTH-BOUND LATITUDE: -0.300000 * EAST-BOUND LONGITUDE: -7.000000 * MINIMUM DEPTH, water: 3 m * MAXIMUM DEPTH, water: 990 m 2001 text/tab-separated-values, 144 data points https://doi.pangaea.de/10.1594/PANGAEA.807697 https://doi.org/10.1594/PANGAEA.807697 en eng PANGAEA Arístegui, Javier; Duarte, Carlos Manuel; Agustí, Susana; Doval, María Dolores; Alvarez-Salgado, Xose Anton; Hansell, Dennis A (2002): Dissolved organic carbon support of respiration in the dark ocean. Science, 298(5600), 1967, https://doi.org/10.1126/science.1076746 https://doi.pangaea.de/10.1594/PANGAEA.807697 https://doi.org/10.1594/PANGAEA.807697 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Alvarez-Salgado, Xose Anton; Pérez, Fiz F; Ríos, Aida F; Doval, María Dolores (2001): Basin-scale changes of total organic carbon profiles in the eastern South Atlantic. Scientia Marina, 65(1), 1-10, https://doi.org/10.3989/scimar.2001.65n11 Bottle number Carbon organic dissolved Date/Time of event DEPTH water Eastern South Atlantic Event label JGOFS JGOFS_not_specified Joint Global Ocean Flux Study Latitude of event Longitude of event Oxygen apparent utilization Temperature WOCEA14-106 WOCEA14-16 WOCEA14-31 WOCEA14-46 WOCEA14-76 WOCEA14-91 dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.80769710.3989/scimar.2001.65n1110.1126/science.1076746 2024-08-13T23:45:38Z Total organic carbon (TOC) samples were collected at 6 stations spaced ~800 km apart in the eastern South Atlantic, from the Equator to 45°S along 9°W. Analyses were performed by high temperature catalytic oxidation (HTCO) in the base laboratory. Despite the complex advection and mixing patterns of North Atlantic and Antarctic waters with extremely different degrees of ventilation, TOC levels below 500 m are quasi-constant at 55±3 µmol C/l, pointing to the refractory nature of deep-water TOC. On the other hand, a TOC excess from 25 to 38 g C/m**2 is observed in the upper 100 m of the permanently stratified nutrient-depleted Equatorial, Subequatorial and Subtropical upper ocean, where vertical turbulent diffusion is largely prevented. Conversely, TOC levels in the nutrient-rich upper layer of the Subantarctic Front only exceeds 9 g C/m**2 the deep-water baseline. As much as 70% of the TOC variability in the upper 500 m is due to simple mixing of reactive TOC formed in the surface layer and refractory TOC in deep ocean waters, with a minor contribution (13%) to oxygen consumption in the prominent subsurface AOU maximum at 200-400 m depth. Dataset Antarc* Antarctic North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-9.000000,-7.000000,-0.300000,-45.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Bottle number Carbon organic dissolved Date/Time of event DEPTH water Eastern South Atlantic Event label JGOFS JGOFS_not_specified Joint Global Ocean Flux Study Latitude of event Longitude of event Oxygen apparent utilization Temperature WOCEA14-106 WOCEA14-16 WOCEA14-31 WOCEA14-46 WOCEA14-76 WOCEA14-91 |
spellingShingle |
Bottle number Carbon organic dissolved Date/Time of event DEPTH water Eastern South Atlantic Event label JGOFS JGOFS_not_specified Joint Global Ocean Flux Study Latitude of event Longitude of event Oxygen apparent utilization Temperature WOCEA14-106 WOCEA14-16 WOCEA14-31 WOCEA14-46 WOCEA14-76 WOCEA14-91 Alvarez-Salgado, Xose Anton Pérez, Fiz F Ríos, Aida F Doval, María Dolores Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 |
topic_facet |
Bottle number Carbon organic dissolved Date/Time of event DEPTH water Eastern South Atlantic Event label JGOFS JGOFS_not_specified Joint Global Ocean Flux Study Latitude of event Longitude of event Oxygen apparent utilization Temperature WOCEA14-106 WOCEA14-16 WOCEA14-31 WOCEA14-46 WOCEA14-76 WOCEA14-91 |
description |
Total organic carbon (TOC) samples were collected at 6 stations spaced ~800 km apart in the eastern South Atlantic, from the Equator to 45°S along 9°W. Analyses were performed by high temperature catalytic oxidation (HTCO) in the base laboratory. Despite the complex advection and mixing patterns of North Atlantic and Antarctic waters with extremely different degrees of ventilation, TOC levels below 500 m are quasi-constant at 55±3 µmol C/l, pointing to the refractory nature of deep-water TOC. On the other hand, a TOC excess from 25 to 38 g C/m**2 is observed in the upper 100 m of the permanently stratified nutrient-depleted Equatorial, Subequatorial and Subtropical upper ocean, where vertical turbulent diffusion is largely prevented. Conversely, TOC levels in the nutrient-rich upper layer of the Subantarctic Front only exceeds 9 g C/m**2 the deep-water baseline. As much as 70% of the TOC variability in the upper 500 m is due to simple mixing of reactive TOC formed in the surface layer and refractory TOC in deep ocean waters, with a minor contribution (13%) to oxygen consumption in the prominent subsurface AOU maximum at 200-400 m depth. |
format |
Dataset |
author |
Alvarez-Salgado, Xose Anton Pérez, Fiz F Ríos, Aida F Doval, María Dolores |
author_facet |
Alvarez-Salgado, Xose Anton Pérez, Fiz F Ríos, Aida F Doval, María Dolores |
author_sort |
Alvarez-Salgado, Xose Anton |
title |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 |
title_short |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 |
title_full |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 |
title_fullStr |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 |
title_full_unstemmed |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, WOCE14 |
title_sort |
part of the global doc versus aou (dissolved organic carbon/apparent oxygen utilization) data compilation, woce14 |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.807697 https://doi.org/10.1594/PANGAEA.807697 |
op_coverage |
MEDIAN LATITUDE: -22.550000 * MEDIAN LONGITUDE: -8.566667 * SOUTH-BOUND LATITUDE: -45.000000 * WEST-BOUND LONGITUDE: -9.000000 * NORTH-BOUND LATITUDE: -0.300000 * EAST-BOUND LONGITUDE: -7.000000 * MINIMUM DEPTH, water: 3 m * MAXIMUM DEPTH, water: 990 m |
long_lat |
ENVELOPE(-9.000000,-7.000000,-0.300000,-45.000000) |
genre |
Antarc* Antarctic North Atlantic |
genre_facet |
Antarc* Antarctic North Atlantic |
op_source |
Supplement to: Alvarez-Salgado, Xose Anton; Pérez, Fiz F; Ríos, Aida F; Doval, María Dolores (2001): Basin-scale changes of total organic carbon profiles in the eastern South Atlantic. Scientia Marina, 65(1), 1-10, https://doi.org/10.3989/scimar.2001.65n11 |
op_relation |
Arístegui, Javier; Duarte, Carlos Manuel; Agustí, Susana; Doval, María Dolores; Alvarez-Salgado, Xose Anton; Hansell, Dennis A (2002): Dissolved organic carbon support of respiration in the dark ocean. Science, 298(5600), 1967, https://doi.org/10.1126/science.1076746 https://doi.pangaea.de/10.1594/PANGAEA.807697 https://doi.org/10.1594/PANGAEA.807697 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.80769710.3989/scimar.2001.65n1110.1126/science.1076746 |
_version_ |
1810485000224636928 |