Measurements of atmospheric aerosols from air and snow samples and meteorological measurements taken from a remote site on the Ross Ice Shelf

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Measurements of atmospheric aerosols from air and snow samples and meteorological measurements taken from a remote site on the Ross Ice Shelf
Description:
Abstract:
The chemistry of air and snow at a remote site on the Ross Ice Shelf was conducted to study atmospheric aerosol particulates which are of interest as they may be important regulators of climate and can indicate the relative strengths of natural and man-made sources of aerosol on a global scale. A range of air and snow samples were collected throughout the study period. Aerosol particulates were collected on membrane filters and analysed using atomic absorption spectrometry, ion chromatography and scanning electron microscopy to establish the bulk chemical composition (rock dust, sea salt, sulphate, nitrate, etc) of the aerosol and the physical characteristics of individual particles. The chemical composition was compared with that of fresh snow samples collected immediately after significant snowfalls to understand processes by which aerosol particulates are trapped at the snow surface. Two firn cores down to 4m depth were analysed for major chemical impurities to establish whether a seasonal cycle exists in the impurity content in the air. Ultratrace levels of mercury and toxic organic compounds (such as dioxins and pesticide residues) were investigated. Air filtered for the measurement of airbourne mercury concentrations and surface snow samples were processes to remove and trap mercury for analysis by photoacoustic mercury analysis. Large volumes of snow from a range of depths down to 1.33m was sampled to trap organic compounds of ployurethane foam filters and analysed by mass spectrometry. Meteorological observations (wind speed and direction, air temperature) were carried out at 3 hour intervals during waking hours (09:00 and 00:00) throughout the period of sampling.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Dick, A.L. Sheppard, D.S. Patterson, J.E. Mercury content of Antarctic surface snow: initial results. Atmospheric environment 24A(4): 973-978, 1990.
Supplemental_Information:
REFERENCE: Harvey, M.J. Fisher, G.W. Lechner, I.S. Isaac, P. Flower, N.E. Dick, A.L. Summertime aerosol measurements in the Ross Sea region of Antarctica. Atmospheric environment 25A(3/4): 569-580, 1991.
Supplemental_Information:
REFERENCE: Dick, A.L. 1990. A simple model for air/snow fractionation of aerosol components over the Antarctic Peninsula. Journal of Atmospheric Chemistry 11:179-196.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19891209
Ending_Date: 19900117
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 171.9667
East_Bounding_Coordinate: 171.9667
North_Bounding_Coordinate: -78.8167
South_Bounding_Coordinate: -78.8167
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
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: ION CHROMATOGRAPHS
Theme_Keyword: MASS SPECTROMETERS
Theme_Keyword: AA > ATOMIC ABSORPTION SPECTROMETER
Theme_Keyword: Ground-based Measurements
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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
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_1989_1990_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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