DMS and DMSP Data from CTD and Minicosm experiments conducted during the BROKE-West voyage of the Aurora Australis, 2006Entry ID: BROKE-West_DMS_DMSP
Abstract: Data Acquisition:
Sampling was performed on seawater collected from CTDs and minicosm experiments. Sampling involved the collection of 250 mL of seawater from each Niskin bottle and minicosm sampled. 100 mL of this was fixed with 1 mL of concentrated hydrochloric acid (HCl). A second 100 mL sample was filtered through a 0.45 micron filter and then fixed with HCl. The remaining water was filtered ... and purged, with the volatile gases eluted being trapped on gold wool enclosed in glass tubes.
Analysis of the gold wool tubes involved heating the tubes to separate the dimethylsulphide (DMS) and then purge and trap followed by gas chromatography (GC) to give the DMS concentration of the seawater sample. The fixed water samples and filtered fixed water samples were basified and then the DMS formed during this process was purged, trapped and analysed by GC to determine the dissolved and particulate dimethylsulphoniopropionate (DMSP) concentrations. Analysis is expected to take approximately one year to complete.
Dataset Format: The data for the CTD sampling is in the following format - CTD Number; Niskin Bottle; DMS Concentration (nM); DMSP particulate concentration (nM); DMSP dissolved concentration (nM)
The data for the minicosm sampling is in the following format: Minicosm Number; Minicosm Day; Hour; Tank Number; DMS Concentration (nM); DMSP particulate concentration (nM); DMSP dissolved concentration (nM)
CTD - conductivity, temperature, pressure
DMS - dimethylsulphide
DMSP - dimethylsulphoniopropionate
DMSO - dimethylsulphoxide
GC - gas chromatography
This work was completed as part of ASAC projects 2655 and 2679 (ASAC_2655, ASAC_2679).
Data Set Citation
Dataset Originator/Creator: Fortescue, D., King, S. and Jones, G.
Dataset Title: DMS and DMSP Data from CTD and Minicosm experiments conducted during the BROKE-West voyage of the Aurora Australis, 2006
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2010-08-24
Dataset Publisher: Australian Antarctic Data Centre
Dataset DOI: doi:10.4225/15/59880cb33ff65Online Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
This description is a member of a collection. The collection is described in
Start Date: 2006-01-10Stop Date: 2006-03-06
Quality For every 20 samples a duplicate was prepared and field blanks were prepared using Milli Q water.
Access Constraints These data are available for download from the provided URL (archive copy), or via a database query at the "Get Service" URL.
Use Constraints This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=BROKE-We... when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Media: HTTP
Distribution Size: 2.7 MB
Distribution Format: Excel, pdf, text
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-03-10
Last DIF Revision Date: 2017-08-23