The role of iron as a micro-nutrient to the Antarctic sea-ice zone algal community - Casey Data

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Van Der Merwe, P. and Nichols, C.M.
Publication_Date: 20120228
Title: The role of iron as a micro-nutrient to the Antarctic sea-ice zone algal community - Casey Data
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: CAASM Metadata
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: Australian Antarctic Data Centre
Other_Citation_Details:
Online_Linkage: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD/AU/ASAC_3026_Casey
Description:
Abstract:
Public Description of the Project This project will assess the importance of the trace micro-nutrient element iron to Antarctic sea-ice algal communities during the International Polar Year (2007-2009). We will investigate the biogeochemistry of iron, including a comprehensive examination of its distribution, speciation, cycling and role in fuelling ice-edge phytoplankton blooms. A significant part of this research will concentrate on the the influence of organic exopolysaccharides on iron solubility, complexation and bioavailability, both within the ice and in surrounding snow and surface seawater. This innovative research will improve our understanding of key processes that control the productivity of the climatically-important Antarctic sea-ice zone. Project objectives: This project will assess the importance of the trace element iron (Fe) as a micro-nutrient to seasonal sea-ice algal communities in the Australian sector of Antarctica during the International Polar Year (2007-09). We will investigate the biogeochemistry of Fe, including a comprehensive examination of its distribution, speciation, cycling and role in fuelling ice-edge phytoplankton blooms. A significant part of this research will concentrate on the influence of organic exopolysaccharides (EPS) on Fe solubility and complexation (and hence bioavailability), both within the ice and in surrounding surface waters. This innovative research will improve our understanding of key processes that control the productivity of the climatically-important Antarctic sea-ice zone. This metadata record describes data collected at Casey Station as part of project 3026. Collected data from the time series experiment in sea ice near Casey station Antarctica (66 degrees 13 minutes 07 seconds S, 110 degrees 39 minutes 02 seconds E). Measurements were made at the same location during seven consecutive study days between 10 November and 2 December 2009. Variables measured were pFe (particulate Fe), TDFe (total dissolvable Fe), dFe (dissolved Fe), plFe (particulate leachable Fe), PON (particulate organic nitrogen), POC (particulate organic carbon), Chl a (Chlorophyll a), salinity, ice temperature, vb/v (brine volume fraction), mean daily air temperature, and max daily air temperature. Measurements were taken on each study day of the snow directly overlying the sea ice (SNOW), a shallow and a deep brine (B- and B+, respectively), three sections of the sea ice core at median depths 3, 33, and 73 centimeters (SI1, SI2, and SI3, respectively) as well as two consecutive sections in the lower most basal ice (SI4 and SI5). Finally, four samples were taken of the underlying seawater at 0, 5, 10 and 15 m (SW0, SW5, SW10 and SW15, respectively).
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20091110
Ending_Date: 20091202
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 110.6
East_Bounding_Coordinate: 110.7
North_Bounding_Coordinate: -66.2
South_Bounding_Coordinate: -66.3
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON
Theme_Keyword: EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
Theme_Keyword: EARTH SCIENCE > OCEANS > SEA ICE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE > SNOW DEPTH
Theme_Keyword: EARTH SCIENCE > OCEANS > SEA ICE > SNOW DEPTH
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
Theme_Keyword: FIELD SURVEYS
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: Iron
Theme_Keyword: ENVIRONMENT
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > SOUTHERN OCEAN
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: These data are publicly available 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_3026_Casey when using these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: PIER VAN DER MERWE
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Private Bag 77
City: Hobart
State_or_Province: Tasmania
Postal_Code: 7001
Country: Australia
Contact_Voice_Telephone: +61 3 62267546
Contact_Facsimile_Telephone: +61 3 6226 2973
Contact_Electronic_Mail_Address: pvander@utas.edu.au
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
See the parent record for further information.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: AU/AADC > Australian Antarctic Data Centre, Australia
Contact_Person: DATA OFFICER AADC
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3244
Contact_Facsimile_Telephone: +61 3 6232 3351
Contact_Electronic_Mail_Address: metadata@aad.gov.au
Resource_Description: ASAC_3026_Casey
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: excel
Transfer_Size: 30 kb
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/portal/download_file.c...
Access_Instructions:
Download point for the data
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://secure3.aad.gov.au/proms/public/projects/r...
Access_Instructions:
Public information for ASAC project 3026
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/metadata/citation.cfm?...
Access_Instructions:
Citation reference for this metadata record and dataset.
Fees: Free
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Metadata_Reference_Information:
Metadata_Date: 20120227
Metadata_Review_Date: 20140829
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: DAVE J. CONNELL
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3244
Contact_Facsimile_Telephone: +61 3 6232 3351
Contact_Electronic_Mail_Address: dave.connell@aad.gov.au
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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