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Record Search Query: [Parameters: Topic='CRYOSPHERE', Term='SNOW/ICE']
Air sampling and analysis from Antarctic firn and ice
Entry ID: ASAC_1004

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Summary
Abstract: Air from the ice and firn (compressed snow) of the Antarctic ice sheet will be extracted and measured for atmospheric composition in the past. Gases of interest are greenhouse gases (carbon dioxide, methane, nitrous oxide) and ozone depleting gases (CFCs, halons). The aim is to understand the budgets of these important atmospheric constituents.

The ice cores drilled for the gas measurements will ... View entire text
Related URL
Description: Law Dome Ice Core 2000-Year CO2, CH4, and N2O Data
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates   
  N: -65.8   S: -66.8   E: 114.0   W: 111.0
Min Altitude: 500 M Max Altitude: 1300 M
Min Depth: 0 M Max Depth: 70 M

Temporal Coverage
Start Date: 1976-06-30
Paleo Temporal Coverage
Paleo Start Date: 300 YBP
Paleo Stop Date: 2 YBP
Chrono Unit:
ISO Topic Category
Quality Where possible, attribute data were tested by creating symbolized digital
displays or hardcopy plots, which were visually verified to digital and hard
copy reference data. Attribute data that could not be verified in such a manner
were interactively queried within the authoring software to check for anomalies
such as duplication of data in fields requiring unique values and incorrect
feature coding.Data completeness reflects the content of the original Vector
Map level 0 (VMAP0) revision 4 transportation layer and Atlas of Canada 1:2 000
000 Digital Base Rail layer source data except where update revisions were
performed. Revisions were based on
Access Constraints None
Use Constraints Licensing information located at http://geogratis.cgdi.gc.ca/e_license.html None
Data Set Progress
COMPLETE
Originating Center
Data Center
GeoAccess Division, Canada Centre for Remote Sensing, Geomatics Canada, Earth Sciences Sector, Natural Resources Canada Supplemental Info
Data Center URL: http://geogratis.cgdi.gc.ca/
Dataset ID: Downloadable Data

Data Center Personnel
Name: GEOGRATIS CLIENT SERVICES
Fax: +01-613-947-2410
Email: info at GeoGratis.cgdi.gc.ca
Contact Address:
615 Booth Street, Room 650
City: Ottawa
Province or State: Ontario
Postal Code: K1A 0E9
Country: Canada
Distribution
Fees: Gratuit-Free
Personnel
Role: DIF AUTHOR
Fax: +01-613-947-2410
Email: info at atlas.gc.ca
Contact Address:
Government of Canada, Natural Resources Canada, Canada
Centre for Remote Sensing, GeoAccess Division, The Atlas of Canada
615 Booth Street, Room 650
City: Ottawa
Province or State: Ontario
Postal Code: K1A 0E9
Country: Canada
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Creation and Review Dates
DIF Creation Date: 2003-04-30
Last DIF Revision Date: 2009-05-13
Future DIF Review Date: 2004-11-03



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