Nitrogen and carbon isotopes of particulate organic matter during the K-Axis voyage of the Aurora Australis, 2016

Water samples were collected from the seawater line on the Aurora Australis during the K-Axis voyage. They were filtered so that two fractions of each sample were collected: a fraction that was between 1.2 and 210 um and a fraction that was between 210 and 1000 um. A 47 mm diameter 1000 um mesh was placed upstream of all samples, and this prevented larger particles (e.g. zooplankton) from entering the samples. The underway water was taken from the pCO2 rig at 1.4 to 1.5 atmospheres.


All samples were collected on 25 mm diameter 1.2um Sterlitech silver membrane filters. The greater than 210 samples were collected on mesh and refiltered onto silver filters. The filters were stored frozen until they were processed in Hobart. Subsamples of the filters were analysed at the Central Science Laboratories, University of Tasmania to determine elemental N and C. The remainder of the filters were analysed by ANSTO (NSW) to determine delta15N and delta13C.


Volumes are in litres, and the values for the nitrogen isotopes are presented as ratios.

Simple

Identification info

Alternate title
Nitrogen and carbon isotopes of particulate organic matter during the K-Axis voyage of the Aurora Australis, 2016
Date (Publication)
2019-10-16
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/5a82301b6e244

Originator

Swadling, K. and Davies, D.

Publisher

Australian Antarctic Data Centre

Principal investigator

SWADLING, KERRIE
Institute for Marine and Antarctic Studies
and
Antarctic Climate and Ecosystems CRC
University of Tasmania
PB 129
Hobart
Tasmania
7001
Australia

Collaborator

DAVIES, DIANA
CSIRO
Castray Esplanade
Battery Point
TAS
7004
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/AAS_4331_KAxis_POM_isotopes

Purpose
The samples were primarily collected to help establish an isotopic baseline for understanding trophic positions of zooplankton and fish. The data (particularly delta 15N) have also been used for interpreting iron dynamics in the water across the Kerguelen Plateau.
Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Biota
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2016-01-19 2016-02-19

Extent

Description
Vertical Extent - Altitude

Vertical element

Minimum value
0
Maximum value
0
Identifier
urn:x-ogc:def:cs:EPSG:6499
Name
Vertical CS. Axis: height (H). Orientation: up. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:114
Name
height

Extent

Description
Vertical Extent - Depth

Vertical element

Minimum value
0
Maximum value
200
Identifier
urn:x-ogc:def:cs:EPSG:6498
Name
Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:113
Name
depth
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > STABLE ISOTOPES
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN
Keywords
  • K-AXIS
  • KERGUELEN-AXIS
NASA/GCMD Earth Science Keywords
  • ICP-MS > Inductively Coupled Plasma Mass Spectrometer
  • CHNS/O ELEMENTAL ANALYZERS > Carbon, Hydrogen, Nitrogen Elemental Analyzers
NASA/GCMD Earth Science Keywords
  • R/V AA > R/V Aurora Australis
NASA/GCMD Earth Science Keywords
  • ACE/CRC
  • AMD/AU
  • AMD
  • CEOS
NASA/GCMD Earth Science Keywords
  • GEOGRAPHIC REGION > POLAR
  • OCEAN > SOUTHERN OCEAN > KERGUELEN PLATEAU
  • OCEAN > SOUTHERN OCEAN > PRINCESS ELIZABETH TROUGH
  • CONTINENT > ANTARCTICA

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are publicly available for download from the provided URL. It is requested that potential users contact the data custodian.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other 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=AAS_4331_KAxis_POM_isotopes when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Fees
Free
Planned available datetime
2019-10-16T00:00:00
Units of distribution
kb
Transfer size
31
Distribution format
  • Excel

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download the data

OnLine resource
PROJECT HOME PAGE

Public information for AAS project AAS_4331

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset.

Resource lineage

Statement
In some cases, the amount of sample was very small - notes about the quality of each measurement are made on the spreadsheet.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2018-01-13 - record created by Kerrie Swadling. 2019-10-16 - record updated by Dave Connell to publicly release the data.

Metadata

Metadata identifier
string/AAS_4331_KAxis_POM_isotopes

Language
English
Character encoding
UTF8

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
dace8ddd-b082-40a1-8428-d4eca38cf0ee

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2019-10-16T14:46:31

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/AAS_4331_KAxis_POM_isotopes

Point of truth for the metadata record

Date info (Creation)
2018-01-12T00:00:00
Date info (Last Update)
2019-10-16

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
S
E
W


Keywords


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