In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean
Without doubt, global climate change is directly linked to the anthropogenic release of greenhouse gases such as carbon dioxide (CO2) and methane (UN IPCC-Report 2007). Therefore, research efforts to comprehend the global carbon cycle have increased during the last years. In the context of the obser...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.660529 2024-09-15T17:46:48+00:00 In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean Sachs, Oliver Sauter, Eberhard-Jürgen MEDIAN LATITUDE: -49.987157 * MEDIAN LONGITUDE: 6.101000 * SOUTH-BOUND LATITUDE: -52.585300 * WEST-BOUND LONGITUDE: 2.193400 * NORTH-BOUND LATITUDE: -48.999600 * EAST-BOUND LONGITUDE: 12.257700 * DATE/TIME START: 2004-04-02T08:30:00 * DATE/TIME END: 2004-04-30T17:25:00 2007 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.660529 https://doi.org/10.1594/PANGAEA.660529 en eng PANGAEA Sachs, Oliver (2008): Benthic organic carbon fluxes in the Southern Ocean: Regional differences and links to surface primary production and carbon export [thesis]. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 578, 158 pp, hdl:10013/epic.30856 https://doi.pangaea.de/10.1594/PANGAEA.660529 https://doi.org/10.1594/PANGAEA.660529 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess ANT-XXI/4 AWI_BioOce AWI_Paleo B_LANDER Biological Oceanography @ AWI Bottom lander MUC MultiCorer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS65 PS65/598-1 PS65/600-1 PS65/600-2 PS65/703-1 PS65/705-1 PS65/705-2 SPP1158 dataset publication series 2007 ftpangaea https://doi.org/10.1594/PANGAEA.660529 2024-07-24T02:31:42Z Without doubt, global climate change is directly linked to the anthropogenic release of greenhouse gases such as carbon dioxide (CO2) and methane (UN IPCC-Report 2007). Therefore, research efforts to comprehend the global carbon cycle have increased during the last years. In the context of the observed changes, it is of particular interest to decipher the role of the hydro-, bio- and atmospheres and how the different compartments of the earth system are affected by the increase of atmospheric CO2. Due to its huge carbon inventory, the marine carbon cycle represents the most important component in this respect. Numerous findings suggest that the Southern Ocean plays a key role in terms of oceanic CO2 uptake. However, an exact quantification of such fluxes of material is hard to achieve for large areas, not least on account of the inaccessibility of this remote region. In particular, there exist so far only few accurate data for benthic carbon fluxes. The latter can be derived from high resolution pore water oxygen profiles, as one possible method. However the ex situ flux determinations carried out on sediment cores, tend to suffer from temperature and pressure artefacts. Alternatively, oxygen microprofiles can be measured in situ, i.e. at the seafloor. Until now, no such data have been published for the Southern Ocean. During the Antarctic Expedition ANT-XXI/4, within the framework of this thesis, in situ and ex situ oxygen profiles were measured and used to derive benthic organic carbon fluxes. Having both types of measurements from the same locations, it was possible to establish a depth-related correction function which was applied subsequently to revise published and additional unpublished carbon fluxes to the seafloor. This resulted in a consistent data base of benthic carbon inputs covering many important sub-regions of the Southern Ocean including the Amundsen and Bellingshausen Seas (southern Pacific), Scotia and Weddell Seas (southern South Atlantic) as well as the Crozet Basin (southern Indian Ocean). ... Other/Unknown Material Antarc* Antarctic Berichte zur Polar- und Meeresforschung Climate change Reports on Polar and Marine Research Sea ice South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(2.193400,12.257700,-48.999600,-52.585300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XXI/4 AWI_BioOce AWI_Paleo B_LANDER Biological Oceanography @ AWI Bottom lander MUC MultiCorer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS65 PS65/598-1 PS65/600-1 PS65/600-2 PS65/703-1 PS65/705-1 PS65/705-2 SPP1158 |
spellingShingle |
ANT-XXI/4 AWI_BioOce AWI_Paleo B_LANDER Biological Oceanography @ AWI Bottom lander MUC MultiCorer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS65 PS65/598-1 PS65/600-1 PS65/600-2 PS65/703-1 PS65/705-1 PS65/705-2 SPP1158 Sachs, Oliver Sauter, Eberhard-Jürgen In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean |
topic_facet |
ANT-XXI/4 AWI_BioOce AWI_Paleo B_LANDER Biological Oceanography @ AWI Bottom lander MUC MultiCorer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS65 PS65/598-1 PS65/600-1 PS65/600-2 PS65/703-1 PS65/705-1 PS65/705-2 SPP1158 |
description |
Without doubt, global climate change is directly linked to the anthropogenic release of greenhouse gases such as carbon dioxide (CO2) and methane (UN IPCC-Report 2007). Therefore, research efforts to comprehend the global carbon cycle have increased during the last years. In the context of the observed changes, it is of particular interest to decipher the role of the hydro-, bio- and atmospheres and how the different compartments of the earth system are affected by the increase of atmospheric CO2. Due to its huge carbon inventory, the marine carbon cycle represents the most important component in this respect. Numerous findings suggest that the Southern Ocean plays a key role in terms of oceanic CO2 uptake. However, an exact quantification of such fluxes of material is hard to achieve for large areas, not least on account of the inaccessibility of this remote region. In particular, there exist so far only few accurate data for benthic carbon fluxes. The latter can be derived from high resolution pore water oxygen profiles, as one possible method. However the ex situ flux determinations carried out on sediment cores, tend to suffer from temperature and pressure artefacts. Alternatively, oxygen microprofiles can be measured in situ, i.e. at the seafloor. Until now, no such data have been published for the Southern Ocean. During the Antarctic Expedition ANT-XXI/4, within the framework of this thesis, in situ and ex situ oxygen profiles were measured and used to derive benthic organic carbon fluxes. Having both types of measurements from the same locations, it was possible to establish a depth-related correction function which was applied subsequently to revise published and additional unpublished carbon fluxes to the seafloor. This resulted in a consistent data base of benthic carbon inputs covering many important sub-regions of the Southern Ocean including the Amundsen and Bellingshausen Seas (southern Pacific), Scotia and Weddell Seas (southern South Atlantic) as well as the Crozet Basin (southern Indian Ocean). ... |
format |
Other/Unknown Material |
author |
Sachs, Oliver Sauter, Eberhard-Jürgen |
author_facet |
Sachs, Oliver Sauter, Eberhard-Jürgen |
author_sort |
Sachs, Oliver |
title |
In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean |
title_short |
In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean |
title_full |
In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean |
title_fullStr |
In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean |
title_full_unstemmed |
In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean |
title_sort |
in situ pore water oxygen microprofiles from the polar front, southern south atlantic ocean |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.660529 https://doi.org/10.1594/PANGAEA.660529 |
op_coverage |
MEDIAN LATITUDE: -49.987157 * MEDIAN LONGITUDE: 6.101000 * SOUTH-BOUND LATITUDE: -52.585300 * WEST-BOUND LONGITUDE: 2.193400 * NORTH-BOUND LATITUDE: -48.999600 * EAST-BOUND LONGITUDE: 12.257700 * DATE/TIME START: 2004-04-02T08:30:00 * DATE/TIME END: 2004-04-30T17:25:00 |
long_lat |
ENVELOPE(2.193400,12.257700,-48.999600,-52.585300) |
genre |
Antarc* Antarctic Berichte zur Polar- und Meeresforschung Climate change Reports on Polar and Marine Research Sea ice South Atlantic Ocean Southern Ocean |
genre_facet |
Antarc* Antarctic Berichte zur Polar- und Meeresforschung Climate change Reports on Polar and Marine Research Sea ice South Atlantic Ocean Southern Ocean |
op_relation |
Sachs, Oliver (2008): Benthic organic carbon fluxes in the Southern Ocean: Regional differences and links to surface primary production and carbon export [thesis]. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 578, 158 pp, hdl:10013/epic.30856 https://doi.pangaea.de/10.1594/PANGAEA.660529 https://doi.org/10.1594/PANGAEA.660529 |
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.660529 |
_version_ |
1810495173205950464 |