BGS Hosted Metadata
Analysis of d18O and salinity from sea ice and meltwater pool water samples collected in April 2016 in the Weddell Sea and Scotia Sea of the Southern Ocean during the marine survey JR15006
The dataset contains oxygen stable isotope and salinity measurements from water samples collected from sea ice and meltwater pools in April 2016 in the region of South Georgia, Signy and deep within the Weddell Sea pack ice during the marine survey JR15006.
The d18O and salinity measurements from sea ice and meltwater sources complement the same analysis from CTD casts and underway non-toxic flow water system on the RRS James Clark Ross during the JR15006. Establishing d18O and salinity values for saline water and oceanic freshwater components can be used to identify sources and changes of freshwater contributions to the ocean.
Simple
- Date (Creation)
- 2018-10-05
- Date (Revision)
- 2018-10-05
- Date (Publication)
- 2018-10-05
- Date (released)
- 2018-10-05
- Edition
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1
- Unique resource identifier
- https://doi.org/10.5285/63af1e57-8f20-4fb1-a55c-bd0e703f8a56
- Codespace
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doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01103
- Codespace
- Other citation details
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Please cite this item as: None
- Credit
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No credit.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role British Geological Survey
Leng, Melanie
Author British Geological Survey
Arrowsmith, Carol
Author British Antarctic Survey Meredith, Michael
Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Theme
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d18O
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meltwater pool
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salinity
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sea ice
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- Place
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Weddell Sea Southern Ocean
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Scotia Sea Southern Ocean
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GEMET - INSPIRE themes, version 1.0
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
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Data released under Open Government Licence V3.0:
- Unique resource identifier
- url
- Codespace
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url
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Larger work citation
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Environment
- Inland waters
- Oceans
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- Begin date
- 2016-03-31
- End date
- 2016-04-26
- Supplemental Information
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It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.
- Title
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12
- Cited responsible party
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Organisation name Individual name Electronic mail address Role European Petroleum Survey Group
Publisher
- Unique resource identifier
- urn:ogc:def:crs:EPSG::3031
- Version
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6.18.3
Distributor
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Units of distribution
-
bytes
- Transfer size
- 1
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
https://www.bodc.ac.uk/data/bodc_database/nodb/data_collection/6618/ Get Data
- Units of distribution
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bytes
- Transfer size
- 1
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=63af1e57-8f20-4fb1-a55c-bd0e703f8a56 Get Data
- Hierarchy level
- Dataset
- Statement
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Methodology:
At all sample locations, 2 or more salinity bottles and d18O vials were filled following the usual procedure. The d18O vials were rinsed 3 times, filled and dried before being closed with a stopper and sealed with the crimper. Oxygen isotope (d18O) measurements were made using the CO2 equilibration method with an Isoprime 100 mass spectrometer plus Aquaprep device. 90 samples (200µl of water) were loaded into Labco Limited exetainers (3.7ml) and placed in the heated sample tray at 40°C. The exetainers were then evacuated to remove atmosphere then flushed with CO2 and left to equilibrate for between 12 (first sample) - 37 (last sample) hours. Each individual gas sample was then admitted to the cryogenic water trap where any water vapour is removed. The dry sample gas was then expanded into the dual inlet where it was measured on the transducer before being expanded in the dual inlet bellows. Ionvantage software then balances the reference bellows relative to this volume. The sample and reference CO2 gases enter alternatively into the Isoprime100 through the dual changeover valve for isotope ratio measurement. In each run two laboratory standards (CA-HI and CA-LO) plus up to 2 secondary standards were analysed in triplicate. The value of these laboratory standards has been accurately determined by comparison with international calibration and reference materials (VSMOW2, SLAP2 and GISP) and so the 18O/16O ratios (versus VSMOW2) of the unknown samples can be calculated and are expressed in delta units, d18O (parts per mille). Errors are < +/- 0.05 per mil.
Metadata
- File identifier
- 63af1e57-8f20-4fb1-a55c-bd0e703f8a56 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2018-10-05
- Metadata standard name
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ISO 19115 Geographic Information - Metadata
- Metadata standard version
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ISO 19115:2003(E)
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Point of contact
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