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SIPEX data iron site - Aurora Australis voyage Sept-Oct 2007
 Entry ID: ASAC_3026_SIPEX

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Summary
Abstract: This work was completed as part of the SIPEX - Sea Ice Physics and Ecosystem eXperiment - voyage.

Adapted from the SPIEX website:

During SIPEX we investigated the biogeochemistry of iron (Fe), including a comprehensive examination of its distribution, speciation (i.e. the different forms of Fe), cycling and its role in fuelling sea ice-based and pelagic algal communities. A major part of this research concentrated on the influence of organic exopolysaccharides (EPS) on Fe solubility and its bio-availability. The distribution of other bioactive trace elements was also examined as a means of fingerprinting the source(s) of Fe, as well as indicating their biological requirements.

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Data on the small- to medium scale (0.1-1000 m) spatial and temporal distribution of Fe and EPS in sea ice cores, surface snow, brine and underlying seawater were determined in each sampled medium by the interdisciplinary team working on the SIPEX project (AAS 3026) in the East Antarctic sector in September/October 2007. Data include Chlorophyll a, salinity, temperature, sea-ice thickness, ice texture analysis, macro-nutrients (nitrate, phosphate, silicate), oxygen stable isotopes, POC and DOC, EPS, iron.

This work was completed as part of AAS (ASAC) project 3026. See the parent metadata record (ASAC_3026) for more information.

Related URL
Link: GET DATA
Description: Download point for the data


Link: VIEW PROJECT HOME PAGE
Description: Sea Ice Physics and Ecosystem eXperiment - website


Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 3026


Link: VIEW RELATED INFORMATION
Description: Citation reference for this metadata record and dataset


Parent DIF
This data set description is a member of a collection. The collection is described in
ASAC_3026


Geographic Coverage
 N: -64.22 S: -65.55  E: 127.95  W: 116.83

Data Set Citation
Dataset Originator/Creator: van der Merwe, Lannuzel, Bowie, Trull
Dataset Title: SIPEX data iron site
Dataset Release Date: 2011-01-01
Dataset Release Place: Australia
Dataset Publisher: ACE CRC
Version: 1
Dataset DOI: http://dx.doi.org/10.4225/15/514A9368882AA


Temporal Coverage
Start Date: 2007-09-11
Stop Date: 2007-10-07


Location Keywords
OCEAN > SOUTHERN OCEAN
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
CRYOSPHERE >SEA ICE >ICE DEPTH/THICKNESS    [Definition]
CRYOSPHERE >SEA ICE >ICE FLOES    [Definition]
CRYOSPHERE >SEA ICE >ICE TEMPERATURE    [Definition]
CRYOSPHERE >SEA ICE >ICE TYPES    [Definition]
CRYOSPHERE >SEA ICE >PACK ICE    [Definition]
CRYOSPHERE >SEA ICE    [Definition]
CRYOSPHERE >SNOW/ICE >ICE DEPTH/THICKNESS    [Definition]
CRYOSPHERE >SNOW/ICE    [Definition]
OCEANS >MARINE ENVIRONMENT MONITORING    [Definition]
OCEANS >OCEAN CHEMISTRY >AMMONIA    [Definition]
OCEANS >OCEAN CHEMISTRY >BIOGEOCHEMICAL CYCLES    [Definition]
OCEANS >OCEAN CHEMISTRY >NITRATE    [Definition]
OCEANS >OCEAN CHEMISTRY >NITRITE    [Definition]
OCEANS >OCEAN CHEMISTRY >NUTRIENTS    [Definition]
OCEANS >OCEAN CHEMISTRY >ORGANIC CARBON    [Definition]
OCEANS >OCEAN CHEMISTRY >ORGANIC MATTER    [Definition]
OCEANS >OCEAN CHEMISTRY >PHOSPHATE    [Definition]
OCEANS >OCEAN CHEMISTRY >SILICATE    [Definition]
OCEANS >OCEAN CHEMISTRY >TRACE ELEMENTS    [Definition]
OCEANS >OCEAN TEMPERATURE >WATER TEMPERATURE    [Definition]
OCEANS >SALINITY/DENSITY >SALINITY    [Definition]
OCEANS >SEA ICE    [Definition]
CRYOSPHERE >SEA ICE >SNOW DEPTH    [Definition]
CRYOSPHERE >SEA ICE >SALINITY    [Definition]
CRYOSPHERE >SEA ICE >ISOTOPES    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >ICEBERGS    [Definition]
BIOLOGICAL CLASSIFICATION >PLANTS >MICROALGAE    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >PLANKTON >PHYTOPLANKTON    [Definition]
OCEANS >OCEAN CHEMISTRY >PIGMENTS >CHLOROPHYLL    [Definition]
OCEANS >OCEAN CHEMISTRY >CHLOROPHYLL


ISO Topic Category
ENVIRONMENT
OCEANS


Platform
SHIPS    [Information]
R/V AA >R/V Aurora Australis


Instrument
CORING DEVICES    [Information]
Probes    [Information]
TEMPERATURE PROBES    [Information]
AUTOANALYZER    [Information]
CHN ANALYZERS >Carbon, Hydrogen, Nitrogen Analyzers    [Information]


Quality
A non-contaminating electro-polished stainless steel ice corer was used for sea ice sampling. Melted sea ice, snow, brine and seawater were then analysed to determine Fe and other trace metals of interest, including EPS concentrations, biological and physico-chemical parameters. The scientists wore clean suits to avoid contaminating the samples.

Additional work was carried out to determine Fe and Os isotopes in snow samples. Results will give insights on the contribution of extra-terrestrial dusts as a possible source of Fe to the ice cover.


Access Constraints
These data are publicly available for download from the provided 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=ASAC_302... when using these data.


Keywords
iron
sea ice
EPS


Data Set Progress
COMPLETE


Originating Center
Australian Antarctic Division


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
 Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
 City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia



Distribution
Distribution_Media: HTTP
Distribution_Size: 29 kb
Distribution_Format: excel
Fees: Free


Personnel
THOMAS WILLIAM TRULL
Role: INVESTIGATOR
Phone: +61 3 6226 2988
Fax: +61 3 6226 2973
Email: tom.trull at utas.edu.au
Contact Address:
GPO BOX 252-80
Antarctic CRC University of Tasmania
City: Hobart
Province or State: Tasmania
Postal Code: 7001
Country: Australia


ANDREW ROSS BOWIE
Role: INVESTIGATOR
Phone: +61 3 62262509
Fax: +61 3 62262973
Email: Andrew.Bowie at utas.edu.au
Contact Address:
IASOS and Antarctic CRC
Private Bag 80
University of Tasmania
City: Hobart
Province or State: Tasmania
Postal Code: 7001
Country: Australia


PIER VAN DER MERWE
Role: INVESTIGATOR
Phone: +61 3 62267546
Fax: +61 3 6226 2973
Email: pvander at utas.edu.au
Contact Address:
Private Bag 77
City: Hobart
Province or State: Tasmania
Postal Code: 7001
Country: Australia


DELPHINE LANNUZEL
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6226 7646
Fax: +61 3 6226 2973
Email: delphine.lannuzel at utas.edu.au
Contact Address:
University of Tasmania
City: Hobart
Province or State: Tasmania
Postal Code: 7001
Country: Australia


Publications/References
Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Centroids, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-centroids

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Coastlines, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-coastlines

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Land and Geographic Unit Area Grids, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-land-geographic-un...

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): National Identifier Grid, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-national-identifie...

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Population Count Grid, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-population-count

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Population Count Grid, Future Estimates, NASA Socioeconomic Data and Applications Center (SEDAC) Columbia University, Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-population-count-f...

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Population Density Grid, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-population-density

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Population Density Grid, Future Estimates, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-population-density...

Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT) (2005-12), Gridded Population of the World, Version 3 (GPWv3): Subnational Administrative Boundaries, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/gpw-v3-subnational-admin-...

Creation and Review Dates
DIF Creation Date: 2011-05-11
Last DIF Revision Date: 2012-09-28

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