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Hydrocarbon Spills on Antarctic Soil

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Hydrocarbon Spills on Antarctic Soil
Description:
Abstract:
Antarctic exploration and research have led to some significant although localized impacts on the environment. Human impacts Occur around current or past scientific research stations, typically located on ice-free areas that are predominantly soils. Fuel spills, the most common occurrence, have the potential to cause the greatest environmental impact in the Antarctic through accumulation of aliphatic and aromatic compounds. Effective management of hydrocarbon spills is dependent on understanding how they impact soil properties such as moisture, hydrophobicity, soil temperature, and microbial activity. Numbers of hydrocarbon degrading bacteria, typically Rhodococcus, Sphingomonas, and Pseudomonas species for example, may become elevated in contaminated soils, but overall microbial diversity declines. Alternative management practices to the current approach of "dig it up and ship it out" are required but must be based on sound information. This data set summarizes current understanding of the extent and effects of hydrocarbon spillage on Antarctic soils; the observed physical, chemical, and biological responses of such soils; and current gaps in knowledge. Comparisons between temperature profiles of hydrocarbon contaminated and pristine sites at Scott Base and Marble Point indicate that during sunny weather, when soils are snow-free, the daily maximum surface temperature of hydrocarbon-contaminated soils is often warmer (by up to ca. 10 °C) than adjacent pristine sites The higher temperatures at the hydrocarbon contaminated sites are attributed to decreased soil surface albedo due to surface darkening by hydrocarbons. In contrast, at a Bull Pass site where hydrocarbons 39 contaminated the subsurface, no difference in soil temperature was detected between a pristine and hydrocarbon-contaminated soil. There is potential for hydrocarbons to affect soil moisture regimes. Hydrocarbon-contaminated soils were weakly hydrophobic, whereas no evidence of hydrophobicity was detected at pristine sites. The area affected by hydrocarbons in Antarctica is not large, yet significant hydrocarbon contamination can be detected in soil around current and former scientific research stations more than 30 yr post-spill.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Aislabie, J. M., Balks, M. R., Foght, J. M., and Waterhouse, E. J., 2004: Hydrocarbon spills on Antarctic soils: Effects and management. Environmental Science & Technology, 38, 1265-1274.
Supplemental_Information:
REFERENCE: Balks, M.R., Paetzold, R.F., Kimble J.M., Aislabie J., Campbell I.B., 2002. The diversity of microflora and microfauna and the thermal and moisture regimes of soils from contaminated and pristine soils from Scott Base, Marble Point and Bull Pass, Wright Valley. Antarct. Sci., 14, 319-326
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: Not Available
East_Bounding_Coordinate: Not Available
North_Bounding_Coordinate: Not Available
South_Bounding_Coordinate: Not Available
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL CHEMISTRY
Theme_Keyword: Fuel Spill
Theme_Keyword: Hydrocarbon
Theme_Keyword: Ross Sea Region
Theme_Keyword: ENVIRONMENT
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
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: LCR > Landcare Research, New Zealand
Contact_Person: JACKIE AISLABIE
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Landcare Research New Zealand Ltd
Address: Private Bag 3127
City: Hamilton
Country: New Zealand
Contact_Voice_Telephone: +64 7 858 3713
Contact_Facsimile_Telephone: +64 7 858 4964
Contact_Electronic_Mail_Address: aislabiej@landcareresearch.co.nz
Resource_Description: ECA020
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.landcareresearch.co.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20100625
Metadata_Review_Date: 20100630
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
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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