Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data
Progress Code: completed Statement: See the referenced papers for more information. 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...
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ftands:oai:ands.org.au::2816226 2023-10-09T21:44:54+02:00 Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data Spatial: westlimit=141.5; southlimit=-55.0; eastlimit=141.5; northlimit=-42.0 Temporal: From 1998-03-01 to 1998-03-31 https://researchdata.edu.au/subantarctic-zone-oceanography-arsenic-data/2816226 unknown Australian Ocean Data Network https://researchdata.edu.au/subantarctic-zone-oceanography-arsenic-data/2816226 ASAC_2256_Arsenic AU/AADC > Australian Antarctic Data Centre, Australia oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS Arsenic SAZ SHIPS R/V AA > R/V Aurora Australis AMD/AU CEOS AMD ACE/CRC OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR dataset ftands 2023-09-18T22:41:49Z Progress Code: completed Statement: See the referenced papers for more information. 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. Taken from the abstracts of the referenced papers: The development of a semi-automated batch HG-AFS method for the shipboard determination of As(III), As(V),MMA and DMA is described. Procedures in the analytical sequence including addition of NaBH4 to samples, cooling and heating the U-trap used for pre-concentration and separation of the arsines, and logging the AFS output are automated. Overall control of the automated tasks into a logical analytical sequence is achieved using a commercially available data acquisition and control package, workbenchmac(TM). Further modifications required for the method to be adapted to shipboard use, including the use of a hydrogen generator, are also detailed. This method shows a number of advantages over a previously reported manual HG-AFS method including, shorter sample throughput time, increased precision and most significantly, ease of use under shipboard conditions. The semi-automated method was operated on the RSV Aurora Australis during a Southern Ocean voyage in March 1998. Arsenic measurements from a surface transect between 42 and 55 degrees S along 141 degrees 30 minutes E, are presented. Application of the method to more routine laboratory use is also discussed. Distribution of the arsenic species total inorganic arsenic [As(V+III)], arsenite [As(III)], monomethyl arsenic(MMA), andd dimethyl arsenic (DMA) was studied in the Subantarctic Zone (SAZ) of the Southern Ocean, south of Australia, during the austral autumn (March 1998). As (V) was the dominant arsenic species in both vertical profiles and surface ... Dataset Antarc* Antarctic aurora australis Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean The Antarctic Austral |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS Arsenic SAZ SHIPS R/V AA > R/V Aurora Australis AMD/AU CEOS AMD ACE/CRC OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
spellingShingle |
oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS Arsenic SAZ SHIPS R/V AA > R/V Aurora Australis AMD/AU CEOS AMD ACE/CRC OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data |
topic_facet |
oceans EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS Arsenic SAZ SHIPS R/V AA > R/V Aurora Australis AMD/AU CEOS AMD ACE/CRC OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
description |
Progress Code: completed Statement: See the referenced papers for more information. 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. Taken from the abstracts of the referenced papers: The development of a semi-automated batch HG-AFS method for the shipboard determination of As(III), As(V),MMA and DMA is described. Procedures in the analytical sequence including addition of NaBH4 to samples, cooling and heating the U-trap used for pre-concentration and separation of the arsines, and logging the AFS output are automated. Overall control of the automated tasks into a logical analytical sequence is achieved using a commercially available data acquisition and control package, workbenchmac(TM). Further modifications required for the method to be adapted to shipboard use, including the use of a hydrogen generator, are also detailed. This method shows a number of advantages over a previously reported manual HG-AFS method including, shorter sample throughput time, increased precision and most significantly, ease of use under shipboard conditions. The semi-automated method was operated on the RSV Aurora Australis during a Southern Ocean voyage in March 1998. Arsenic measurements from a surface transect between 42 and 55 degrees S along 141 degrees 30 minutes E, are presented. Application of the method to more routine laboratory use is also discussed. Distribution of the arsenic species total inorganic arsenic [As(V+III)], arsenite [As(III)], monomethyl arsenic(MMA), andd dimethyl arsenic (DMA) was studied in the Subantarctic Zone (SAZ) of the Southern Ocean, south of Australia, during the austral autumn (March 1998). As (V) was the dominant arsenic species in both vertical profiles and surface ... |
format |
Dataset |
title |
Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data |
title_short |
Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data |
title_full |
Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data |
title_fullStr |
Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data |
title_full_unstemmed |
Subantarctic zone oceanography - SAZ Project 1997-1998 - Arsenic Data |
title_sort |
subantarctic zone oceanography - saz project 1997-1998 - arsenic data |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/subantarctic-zone-oceanography-arsenic-data/2816226 |
op_coverage |
Spatial: westlimit=141.5; southlimit=-55.0; eastlimit=141.5; northlimit=-42.0 Temporal: From 1998-03-01 to 1998-03-31 |
geographic |
Antarctic Southern Ocean The Antarctic Austral |
geographic_facet |
Antarctic Southern Ocean The Antarctic Austral |
genre |
Antarc* Antarctic aurora australis Southern Ocean |
genre_facet |
Antarc* Antarctic aurora australis Southern Ocean |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/subantarctic-zone-oceanography-arsenic-data/2816226 ASAC_2256_Arsenic |
_version_ |
1779314399034474496 |