The carbon cycle in the Australian sector of the Southern Ocean.

---- Public Summary from Project ----

The Southern Ocean is one the most significant regions on earth for regulating the build up of anthropogenic CO2 in the atmosphere, and the capacity for carbon uptake in the region could be altered by climate change. The project aims to establish a time series of anthropogenic carbon accumulation. The work will be used to identify processes regulating the CO2 uptake and to test models that predict future uptake.


2001-2002 Season:

Data collection for this project was solely carried out on voyage three of the 2001/2002 season.


Total dissolved inorganic carbon (TCO2) and titration alkalinity (TA) measurements were made on the CLIVAR SR3 section between Hobart and Antarctica. The carbon samples were taken from a 24 bottle rosette and have an approximate horizontal resolution of 60nm with closer spacing in regions where horizontal gradients were large. Many of the stations sampled for carbon had multiple casts to improve vertical resolution.


The CRM analyses were used to calibrate the titration cell volume. Preliminary analysis of Certified Reference Material (CRM) Seawater from Scripps Institution of Oceanography show data quality was generally good. For TCO2 the measurements on Batch 52 CRM's the average concentration was 2005.65 +/- 1.36 micromol/kg (n=65; 1 s.d.). For TA the average CRM values were 2224.76 +/- 1.17 micromol/kg (n=45, 1 s.d.). The certified values for Batch 52 was 2005.57 +/- 0.39 and 2224.72 +/- 0.81 micromol/kg for TCO2 and TA, respectively.


The fields in this dataset follow standard WOCE naming practices. See the url given below for further details.


The fields in this dataset are:


EXPOCODE

SECT_ID

STNNBR

CASTNO

SAMPNO

BTLNBR

BTLNBR_FLAG_W

DATE

TIME

LATITUDE

LONGITUDE

DEPTH

CTDPRS

CTDTMP

CTDSAL

CTDSAL_FLAG_W

SALNTY

SALNTY_FLAG_W

CTDOXY

CTDOXY_FLAG_W

OXYGEN

OXYGEN_FLAG_W

SILCAT

SILCAT_FLAG_W

NITRAT

NITRAT_FLAG_W

PHSPHT

PHSPHT_FLAG_W

CFC-11

CFC-11_FLAG_W

CFC-12

CFC-12_FLAG_W

CFC113

CFC113_FLAG_W

CCL4

CCL4_FLAG_W

TCARBN

TCARBN_FLAG_W

ALKALI

ALKALI_FLAG_W

2008-2009 Season:

The Southern Ocean is a critical region on earth for taking up anthropogenic carbon dioxide (CO2) from the atmosphere. Over the past year, underway equipment has been used on a number of Aurora Australis voyages to estimate the air-sea exchange of CO2 and to characterise the variability in the exchange. The information is part of a large long term international effort to determine how much CO2 is being taken up by the ocean and to improve predictions of how the uptake and CO2 storage will change in future.


An underway CO2 system was run on a number of voyages on Aurora Australis.

Simple

Identification info

Alternate title
The carbon cycle in the Australian sector of the Southern Ocean.
Date (Publication)
2014-02-21
Edition
1

Originator

Tilbrook, B.

Publisher

Australian Antarctic Data Centre

Principal investigator

TILBROOK, BRONTE
CSIRO Marine and Atmospheric Research
GPO BOX 1538
Hobart
Tasmania
7001
Australia

Collaborator

TILBROOK, BRONTE
CSIRO Marine and Atmospheric Research
GPO BOX 1538
Hobart
Tasmania
7001
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/ASAC_1302

Status
Completed

Custodian

DOE/ORNL/ESD/CDIAC > Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy - CDIAC, DATA OFFICER (DATA CENTER CONTACT)
Oak Ridge National Laboratory
Bethel Valley Road
P.O. Box 2008
Building 2040
Oak Ridge
Tennessee
37831-6290
USA

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
  • Geoscientific information
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2001-11-20 2001-12-11

Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2008-09-30 2010-03-31
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE
  • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE
Keywords
  • ALKALI
  • ALKALI_FLAG_W
  • BTLNBR
  • BTLNBR_FLAG_W
  • CASTNO
  • CCL4
  • CCL4_FLAG_W
  • CFC-11
  • CFC-11_FLAG_W
  • CFC-12
  • CFC-12_FLAG_W
  • CFC113
  • CFC113_FLAG_W
  • CTDOXY
  • CTDOXY_FLAG_W
  • CTDPRS
  • CTDSAL
  • CTDSAL_FLAG_W
  • CTDTMP
  • DATE
  • DEPTH
  • EXPOCODE
  • LATITUDE
  • LONGITUDE
  • NITRAT
  • NITRAT_FLAG_W
  • OXYGEN
  • OXYGEN_FLAG_W
  • PHSPHT
  • PHSPHT_FLAG_W
  • SALNTY
  • SALNTY_FLAG_W
  • SAMPNO
  • SECT_ID
  • SILCAT
  • SILCAT_FLAG_W
  • STNNBR
  • TCARBN
  • TCARBN_FLAG_W
  • TIME
  • Ocean acidification
NASA/GCMD Earth Science Keywords
  • SOMMA > Single Operator Multiparameter Metabolic Analyzer
NASA/GCMD Earth Science Keywords
  • SHIPS
NASA/GCMD Earth Science Keywords
  • WOCE > World Ocean Circulation Experiment
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • AMD/US
  • CEOS
  • AMD
NASA/GCMD Earth Science Keywords
  • OCEAN > SOUTHERN OCEAN
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are available for download from the provided URL. They have also been submitted to the Carbon Dioxide Information Analysis Center where they are undergoing further quality checks. Also check the Pangaea database and the SOCAT database for these and other carbon datasets (see provided URLs).

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 at the provided http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1302 when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

DOE/ORNL/ESD/CDIAC > Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy - CDIAC, DATA OFFICER (DATA CENTER CONTACT)
Oak Ridge National Laboratory
Bethel Valley Road
P.O. Box 2008
Building 2040
Oak Ridge
Tennessee
37831-6290
USA

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
2014-02-21T00:00:00
Units of distribution
kb
Transfer size
101
Distribution format
  • csv

OnLine resource
GET DATA

Download point for the data - csv file 2001-2002 data

OnLine resource
GET DATA

Find ocean carbon datasets at Pangaea

OnLine resource
GET DATA

Find ocean carbon datasets at the Surface Ocean CO2 Atlas

OnLine resource
PROJECT HOME PAGE

Public information for ASAC project 1302

OnLine resource
VIEW RELATED INFORMATION

Descriptions of standard WOCE file formats

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Resource lineage

Statement
Data are quality controlled following WOCE guidelines. Flags are included with these data (good=2, bad =4, suspicious =3) and are preliminary. 2008-2009 Season: Plans to install an aerosol sampler have been delayed because the equipment needed to be redesigned to handle Southern Ocean conditions, and there are difficulties getting people to operate the equipment on voyages. It is not certain this part of the project will be possible in 2009/2010. Underway CO2 measurements were made during transits on Aurora Australis voyages, V1, V2(return), V3, and V5. Difficulties affecting project: The aerosol sampler needed to be redesigned to handle the conditions. Particulate contamination from stack gas is also a concern for the aerosol sampling. Flooding of the oceanographic lab due to poor drainage is an ongoing problem and is causing loss of data. A problem with the ship's thermosalinograph when operated in the ice was identified a couple of years ago and is still not corrected, degrading the data quality. Cavitation in the seawater pump is also a problem that will degrade data quality for oxygen and perhaps CO2. While the problem persists it is unlikely oxygen measurements will be of much value on the ship. The underway equipment is usually run by volunteers. The work is not arduous and requires about 20 minutes per day when the ship is underway. The Deputy Voyage Leaders often volunteer, but they are not always available. Organising volunteers and difficulty finding them has resulted in us needing to leave the systems off at times.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2008-07-10 - record updated by Dave Connell - URL to data corrected. 2009-04-16 - record updated by Dave Connell from information submitted in the progress report. 2014-02-21 - record updated by Dave Connell to add links to Pangaea and SOCAT. 2015-05-29 - record updated by Dave Connell - basic updates.

Metadata

Metadata identifier
string/ASAC_1302

Language
English
Character encoding
UTF8

Author

TILBROOK, BRONTE
CSIRO Marine and Atmospheric Research
GPO BOX 1538
Hobart
Tasmania
7001
Australia

Sponsor

CSIRO

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
109f7da3-ee8d-474a-b7a7-e749eba08635

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2015-11-30T04:50:00

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/ASAC_1302

Point of truth for the metadata record

Date info (Creation)
2001-04-09T00:00:00
Date info (Last Update)
2017-04-26

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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