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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
Entry ID: K093_1990_1991_NZ_1


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Summary
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.
Geographic Coverage
 N: -78.0 S: -78.0  E: 140.0  W: 140.0

Temporal Coverage
Start Date: 1990-12-01
Stop Date: 1991-01-20


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > EAST ANTARCTICA
CONTINENT > ANTARCTICA > POLAR PLATEAU
GEOGRAPHIC REGION > POLAR


Science Keywords
ATMOSPHERE >AEROSOLS >AEROSOL BACKSCATTER    [Definition]
ATMOSPHERE >AEROSOLS >PARTICULATE MATTER    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >TRACE ELEMENTS/TRACE METALS    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >TRACE GASES/TRACE SPECIES    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
GROUND-BASED OBSERVATIONS    [Information]


Quality
All of the data is held by NIWA Ltd., New Zealand. Please contact Dr Gordon Brailsford for more information.


Keywords
GROUND-BASED OBSERVATIONS


Data Set Progress
COMPLETE


Originating Center


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
GORDON BRAILSFORD
Role: TECHNICAL CONTACT
Phone: +64 4 386 0300
Fax: +64 3 386 0574
Email: g.brailsford at niwa.co.nz
Contact Address:
National Institute of Water and Atmospheric Research Ltd. (NIWA)
PO BOX 14901
City: Wellington
Country: New Zealand


CHAD DICK
Role: INVESTIGATOR
Contact Address:
Norwegian Polar Institute
CliC International Project Office
City: Tromsø
Country: Norway


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand



Creation and Review Dates
DIF Creation Date: 2009-04-22
Last DIF Revision Date: 2009-04-23


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