Subantarctic zone oceanography - SAZ Project 1997-1998
Data were collected during the 1997-1998 austral summer on voyages by the Aurora Australis and Southern Surveyor. Taken from the abstract of the referenced paper: Oceanographic processes in the subantarctic region contribute crucially to the physical and biogeochemical aspects of the global climate...
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ftands:oai:ands.org.au::699806 2023-05-15T13:46:57+02:00 Subantarctic zone oceanography - SAZ Project 1997-1998 TRULL, THOMAS WILLIAM (hasPrincipalInvestigator) TRULL, THOMAS WILLIAM (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-40.0; southlimit=-55.0; westlimit=140.0; eastLimit=140.0; projection=WGS84 Temporal: From 1997-09-01 to 1998-03-31 https://researchdata.ands.org.au/subantarctic-zone-oceanography-1997-1998/699806 https://data.aad.gov.au/metadata/records/ASAC_2256 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/subantarctic-zone-oceanography-1997-1998/699806 41d77645-f31e-46e7-8976-64531a531549 ASAC_2256 https://data.aad.gov.au/metadata/records/ASAC_2256 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY NUTRIENTS OCEAN CHEMISTRY FRONTS OCEAN CIRCULATION WATER TEMPERATURE OCEAN TEMPERATURE CONDUCTIVITY SALINITY/DENSITY SAZ CTD > Temperature Depth SHIPS R/V AA > R/V Aurora Australis OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:16:44Z Data were collected during the 1997-1998 austral summer on voyages by the Aurora Australis and Southern Surveyor. Taken from the abstract of the referenced paper: Oceanographic processes in the subantarctic region contribute crucially to the physical and biogeochemical aspects of the global climate system. To explore and quantify these contributions, the Antarctic Cooperative Research Centre (CRC) organised the SAZ Project, a multidisciplinary, multiship investigation carried out south of Australia in the austral summer of 1997-1998. Here we present a brief overview of the SAZ Project and some of its major results, as detailed in the 16 papers that follow in this special section. The Southern Ocean plays an important role in the global oceanic overturning circulation and its influence on the carbon dioxide contents of the atmosphere. Deep waters upwelled to the surface are rich in nutrients and carbon dioxide. Air-sea interaction modifies the upwelled deep waters to form bottom, intermediate, and mode waters, which transport freshwater, oxygen, and carbon dioxide into the ocean interior. The overall effect on atmospheric carbon dioxide is a balance between outgassing from upwelled deep waters and uptake via both dissolution in newly formed waters (sometimes referred to as the solubility pump) and the transport of photosynthetically formed organic carbon to depth in settling particles (referred to as the biological pump). Determining the variations in the overturning circulation and the associated carbon fluxes in the past and their response to increased anthropogenic emissions of carbon dioxide in the future is essential to a full understanding of the controls on global climate. At present the upwelled nutrients are incompletely used. Low light in deep wind-mixed surface layers, lack of the micronutrient iron, and other factors restrict phtyoplankton production so that Southern Ocean surface waters represent the largest high-nutrient, low chlorophyll (HNLC) region in the world. Dataset Antarc* Antarctic aurora australis Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Austral Southern Ocean The Antarctic ENVELOPE(140.0,140.0,-40.0,-55.0) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY NUTRIENTS OCEAN CHEMISTRY FRONTS OCEAN CIRCULATION WATER TEMPERATURE OCEAN TEMPERATURE CONDUCTIVITY SALINITY/DENSITY SAZ CTD > Temperature Depth SHIPS R/V AA > R/V Aurora Australis OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
spellingShingle |
oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY NUTRIENTS OCEAN CHEMISTRY FRONTS OCEAN CIRCULATION WATER TEMPERATURE OCEAN TEMPERATURE CONDUCTIVITY SALINITY/DENSITY SAZ CTD > Temperature Depth SHIPS R/V AA > R/V Aurora Australis OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR Subantarctic zone oceanography - SAZ Project 1997-1998 |
topic_facet |
oceans WATER DEPTH EARTH SCIENCE BATHYMETRY/SEAFLOOR TOPOGRAPHY NUTRIENTS OCEAN CHEMISTRY FRONTS OCEAN CIRCULATION WATER TEMPERATURE OCEAN TEMPERATURE CONDUCTIVITY SALINITY/DENSITY SAZ CTD > Temperature Depth SHIPS R/V AA > R/V Aurora Australis OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
description |
Data were collected during the 1997-1998 austral summer on voyages by the Aurora Australis and Southern Surveyor. Taken from the abstract of the referenced paper: Oceanographic processes in the subantarctic region contribute crucially to the physical and biogeochemical aspects of the global climate system. To explore and quantify these contributions, the Antarctic Cooperative Research Centre (CRC) organised the SAZ Project, a multidisciplinary, multiship investigation carried out south of Australia in the austral summer of 1997-1998. Here we present a brief overview of the SAZ Project and some of its major results, as detailed in the 16 papers that follow in this special section. The Southern Ocean plays an important role in the global oceanic overturning circulation and its influence on the carbon dioxide contents of the atmosphere. Deep waters upwelled to the surface are rich in nutrients and carbon dioxide. Air-sea interaction modifies the upwelled deep waters to form bottom, intermediate, and mode waters, which transport freshwater, oxygen, and carbon dioxide into the ocean interior. The overall effect on atmospheric carbon dioxide is a balance between outgassing from upwelled deep waters and uptake via both dissolution in newly formed waters (sometimes referred to as the solubility pump) and the transport of photosynthetically formed organic carbon to depth in settling particles (referred to as the biological pump). Determining the variations in the overturning circulation and the associated carbon fluxes in the past and their response to increased anthropogenic emissions of carbon dioxide in the future is essential to a full understanding of the controls on global climate. At present the upwelled nutrients are incompletely used. Low light in deep wind-mixed surface layers, lack of the micronutrient iron, and other factors restrict phtyoplankton production so that Southern Ocean surface waters represent the largest high-nutrient, low chlorophyll (HNLC) region in the world. |
author2 |
TRULL, THOMAS WILLIAM (hasPrincipalInvestigator) TRULL, THOMAS WILLIAM (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Subantarctic zone oceanography - SAZ Project 1997-1998 |
title_short |
Subantarctic zone oceanography - SAZ Project 1997-1998 |
title_full |
Subantarctic zone oceanography - SAZ Project 1997-1998 |
title_fullStr |
Subantarctic zone oceanography - SAZ Project 1997-1998 |
title_full_unstemmed |
Subantarctic zone oceanography - SAZ Project 1997-1998 |
title_sort |
subantarctic zone oceanography - saz project 1997-1998 |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/subantarctic-zone-oceanography-1997-1998/699806 https://data.aad.gov.au/metadata/records/ASAC_2256 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-40.0; southlimit=-55.0; westlimit=140.0; eastLimit=140.0; projection=WGS84 Temporal: From 1997-09-01 to 1998-03-31 |
long_lat |
ENVELOPE(140.0,140.0,-40.0,-55.0) |
geographic |
Antarctic Austral Southern Ocean The Antarctic |
geographic_facet |
Antarctic Austral Southern Ocean The Antarctic |
genre |
Antarc* Antarctic aurora australis Southern Ocean |
genre_facet |
Antarc* Antarctic aurora australis Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/subantarctic-zone-oceanography-1997-1998/699806 41d77645-f31e-46e7-8976-64531a531549 ASAC_2256 https://data.aad.gov.au/metadata/records/ASAC_2256 http://nla.gov.au/nla.party-617536 |
_version_ |
1766245854577950720 |