Metadata details
BROKE-West_CTD_Niskin
All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
- Citation
- Mongin, M. (2010) CTD Niskin data collected from the BROKE-West voyage of the Aurora Australis, 2006, Ver. 1, Australian Antarctic Data Centre - doi:10.4225/15/598802b56c6d1, Accessed: 2026-05-15
- Title
- CTD Niskin data collected from the BROKE-West voyage of the Aurora Australis, 2006
- Data Centre
- Australian Antarctic Data Centre, Australia
- DOI
- doi:10.4225/15/598802b56c6d1
- Created Date
- 2006-03-09
- Revision Date
- 2017-08-07
- Expected Date of Data Release
- 2010-08-24
- Data Version
- 1
- Parent record
- BROKE-West
Datasets and documents
Related links
Description
3 litres of seawater were collected every 2nd CTD (conductivity, temperature and depth) cast on every CTD transect of the BROKE-West voyage. 7 CTD transects were completed on the BROKE-West voyage, all on southwards legs. Samples were collected at 6 depths in the top 200 m of the water column using niskin bottles. 2 litres were filtered through polycarbonate filters and 1 litre was filtered through a fibreglass filter. Chemical digestion of the polycarbonate filter enabled us to determine the particulate silicon concentration for each sample (using the nutrient autoanalyser onboard the Aurora Australis, see hydrochemistry section), fibreglass filters have been dried and stored for CHN analysis back on shore.
This work was completed as part of ASAC projects 2655 and 2679 (ASAC_2655, ASAC_2679).
Quality
The depths sampled changed at every CTD cast and they are in the data file for each profile. Generally they are usually within the 200m depth range.
Access
These data are publicly available for download from the provided URL.
Data are also available via the provided "Get Service" link.
Temporal Coverages
- Start date: 2006-01-01 - Stop date: 2006-03-20
Spatial Coverages
Science Keywords
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE
- EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
- EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
Additional Keywords
- particulate organic matter
- biogeochemistry
- carbon
- nitrogen
- filtration
- CTD
- conductivity
- temperature
- depth
- nutrients
- BROKE-West
Locations
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
Platforms
- SHIPS
- R/V Aurora Australis
Instruments
- Conductivity, Temperature, Depth
- NISKIN BOTTLES
Researchers
- mongin, mathieu (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)
Use Constraints
This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=BROKE-West_CTD_Niskin when using these data.
Project
ISO Topic
- OCEANS
Dataset Language
- English
Orignating Centre
- Australian Antarctic Division
Dataset Progress
- COMPLETE
IDN Node
- AMD/AU
- CEOS
- AMD
- ACE/CRC
Metadata Revision History
2010-08-24 - record updated by Dave Connell to publicly release the data. 2017-08-07 - record updated by Dave Connell - basic updates.
