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Global Change Master Directory (GCMD)
Atmospheric Nitrate Isotopic Analysis at Amundsen-Scott South Pole Station, A Twenty-Five Year Record
Entry ID: NSIDC-0281_1


Summary
Abstract: This data set contains snow pit measurements of oxygen isotopes, 17O and 18O, in nitrate and ion concentrations, and surface measurements of oxygen isotopes in nitrate and in nitrate aerosols from the Amundsen-Scott South Pole Station, Antarctica. The 6-meter snow pit provides investigators with a 25-year record of nitrate isotope variations and ion concentrations for a period spanning from 1979 to 2004. Monthly surface snow and weekly aerosol collections yield a year-long record of nitrate isotopic composition starting 01 December 2003 and ending 31 December 2004.

Little is known about the past denitrification of the stratosphere in high latitude regions. Such knowledge is important to understanding the chemical state of the ancient atmospheres and evaluating the present climate models. With this research, investigators aim to understand the denitrification of the Antarctic stratosphere and quantify the sources of nitrate aerosols over time.

Data are in Microsoft Excel format and are available via FTP.

Related URL
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Description: Documentation


Link: View Related Information
Description: FTP


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Geographic Coverage
 N: -89.9975 S: -89.9975  E: 139.2728  W: 139.2728

 Max Depth: 6 METERS

Data Set Citation
Dataset Creator: Thiemens, M. H. and J. Savarino.
Dataset Title: Atmospheric Nitrate Isotopic Analysis at Amundsen-Scott South Pole Station, A Twenty-Five Year Record
Dataset Series Name: NSIDC-0281
Dataset Release Date: 2006-11-01T00:00:00.000Z
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Version: 1
Online Resource: http://www.usap-dc.org/view/dataset/609281


Temporal Coverage
Start Date: 2003-12-01
Stop Date: 2004-12-31


Location Keywords
CONTINENT > ANTARCTICA


Data Resolution
Temporal Resolution: 300 month


Science Keywords
CRYOSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY    [Definition]
ATMOSPHERE >AEROSOLS >NITRATE PARTICLES    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >NITROGEN COMPOUNDS    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >OXYGEN COMPOUNDS    [Definition]


Platform
GROUND STATIONS    [Information]
GROUND-BASED OBSERVATIONS    [Information]


Instrument
MASS SPECTROMETERS    [Information]


Keywords
Admundsen-Scott Station
Aerosols
AGDC
Antarctica
Ion Chemistry
Nitrate
Oxygen Isotopes
Polar
Snow
Snow Pit
South Pole


Data Set Progress
COMPLETE


Data Center
NSIDC Antarctic Glaciological Data Center    [Information]
Data Center URL: http://nsidc.org/agdc/

Data Center Personnel
Name: AGDC USER SERVICES
Phone: 1-303-492-6199
Fax: 1-303-492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA



Distribution
Distribution_Media: FTP
Distribution_Size: 76.5 KB
Distribution_Format: Microsoft Excel


Personnel
MARK H. THIEMENS
Role: INVESTIGATOR
Contact Address:
9500 Gilman Dr., MC 0356
City: La Jolla
Province or State: CA
Postal Code: 92093-0356
Country: USA


JOEL SAVARINO
Role: INVESTIGATOR
Contact Address:
54 rue Moliere, BP 96
City: St. Martin d Heres
Postal Code: 38402
Country: France


NSIDC USER SERVICES
Role: TECHNICAL CONTACT
Phone: 1-303-492-6199
Fax: 1-303-492-2468
Email: nsidc at nsidc.org
Contact Address:
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-11-01
Last DIF Revision Date: 2018-10-01



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