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Measurements of trace substances (e.g. Nitrate, sulphate, anions, cations, methane, etc) from air and snow samples from a remote area on the east Antarctic plateau

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Measurements of trace substances (e.g. Nitrate, sulphate, anions, cations, methane, etc) from air and snow samples from a remote area on the east Antarctic plateau
Description:
Abstract:
Samples of air and snow were collected at a remote site on the east Antarctic plateau for determination of a number of trace atmospheric components to better understand the processes by which atmospheric impurities become trapped in the snow layers. The relationship between atmospheric concentrations and snow impurity content was examined in relation to meteorological data collected during the season. Filters were exposed to air samples and chemically analysed to determine airbourne concentrations of Na, Al, Ca, K, Cl, nitrate, sulphate and possibly some heavy metals to indicate concentrations of the chief airbourne particulate impurities (sea salt, rock dust and sulphates). The filters were also examined by scanning electron microscope to determine the physical characteristics of the airbourne particulates with information about chemical composition of individual particles. Soluble anions (sulphate, nitrate, chloride) and cations (magnesium, sodium, potassium and calcuym), methane and sulphonate were also tested for. Polyurethane foam filters were analysed for trace levels of toxic organic compounds such as dioxins, furans and pesticide residues. Air samples were run through an air tube containing gold coated sand and analysed to determine atmospheric mercury concentrations. Aerosol particulate concentrations and sizes were monitored nearly continuously alongside meterological measurements (wind speed and direction and air temperature). Several samples of snow cores were taken and analysed for chemical species, sulphur species, dimethyl sulphideoxide, dimethyl disulphide and toxic compounds in parallel with air samples. Physical profiles of the top 2 meters of snow were also carried out including density, temperature and hardness being measured with layers of depth hoar and wind crusts noted.
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19901201
Ending_Date: 19910120
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 140.0
East_Bounding_Coordinate: 140.0
North_Bounding_Coordinate: -78.0
South_Bounding_Coordinate: -78.0
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 > AEROSOLS > AEROSOL BACKSCATTER
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > PARTICULATE MATTER
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE ELEMENTS/TRACE METALS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES
Theme_Keyword: GROUND-BASED OBSERVATIONS
Theme_Keyword: Ground-based Observations
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: CONTINENT > ANTARCTICA > EAST ANTARCTICA
Place_Keyword: CONTINENT > ANTARCTICA > POLAR PLATEAU
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GORDON BRAILSFORD
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: National Institute of Water and Atmospheric Research Ltd. (NIWA)
Address: PO BOX 14901
City: Wellington
Country: New Zealand
Contact_Voice_Telephone: +64 4 386 0300
Contact_Facsimile_Telephone: +64 3 386 0574
Contact_Electronic_Mail_Address: g.brailsford@niwa.co.nz
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All of the data is held by NIWA Ltd., New Zealand. Please contact Dr Gordon Brailsford for more 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: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
Contact_Person: SHULAMIT GORDON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Resource_Description: K093_1990_1991_NZ_1
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.antarcticanz.govt.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20090422
Metadata_Review_Date: 20090423
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CEISHA POIROT
Contact_Person_Primary:
Contact_Person: SHULAMIT GORDON
Contact_Position: DIF AUTHOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: c.poirot@antarcticanz.govt.nz
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
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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