Atmospheric CO2 and Climate: Byrd Ice Core, Antarctica  View Catalog Page Entry ID
NSIDC-0314
Summary
Reconstructions of ancient atmospheric CO2 variations help us better understand how the global carbon cycle and climate are linked. Here we compare CO2 variations on millennial time scales between 20,000 and 90,000 years with an Antarctic temperature proxy and records of abrupt climate change in the northern hemisphere. CO2 and Antarctic temperature are positively correlated over millennial-scale climate cycles, implying a strong connection to southern ocean processes. Evidence from marine sediment proxies indicates that CO2 rose most rapidly when North Atlantic Deep Water shoaled and stratification in the Southern Ocean was reduced. These increases in CO2 occurred during stadial (cold) periods in the northern hemisphere, several thousand years before abrupt warming events in Greenland. Data are available in Microsoft Excel format and are available via FTP.
Geographic Coverage
Spatial Coordinates:
N: -80.01°
S: -80.01°
E: -119.833611°
W: -119.833611°
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Data Set Citation
Dataset Creator: Ahn, J.
Dataset Title: Atmospheric CO2 and Climate: Byrd Ice Core, Antarctica
Dataset Release Date: 2007-10-26
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0314.html
Dataset DOI: http://dx.doi.org/10.7265/N58W3B80
Paleo Temporal Coverage
Paleo Start Date: 90 ka bp
Paleo Stop Date: 20 ka bp
Location Keywords
- CONTINENT ANTARCTICA
Science Keywords
- Cryosphere Snow/Ice
- Cryosphere Snow/Ice Snow/Ice Chemistry
- Terrestrial Hydrosphere Snow/Ice
- Terrestrial Hydrosphere Snow/Ice Snow/Ice Chemistry
Ancillary Keywords
- Atmospheric Chemistry
- Atmospheric CO2
- Atmospheric Gases
- Climate
- Climate Change
- Climate Research
- Ice Core
- Ice Core Chemistry
- Ice Core Data
- Ice Core Gas Records
- Ice Cores
- Climatology/Meteorology/Atmosphere
Instrument
Data Set Progress
complete
Originating Center
NSIDC_AGDC
Data Center
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@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
NSIDC Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/
Data Center Personnel
Name: NSIDC AGDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@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: 45 KB
Distribution Format: Microsoft Excel
Personnel
Jinho Ahn
Role: INVESTIGATOR
Phone: 1 541 737-1377
Email: ahnji@geo.oregonstate.edu
Contact Address:
- Oregon State University
- Department of Geosciences
- Oregon State University
- Department of Geosciences
- 008 Wilkinson Hall
City: Corvallis
Province or State: OR
Postal Code: 97331-5506
Country: USA
Edward J Brook
Role: INVESTIGATOR
Phone: 1 541 737-8197
Email: brooke@geo.oregonstate.edu
Contact Address:
- Oregon State University
- Department of Geosciences
- 104 Wilkinson Hall
City: Corvallis
Province or State: OR
Postal Code: 97331-5506
Country: USA
Related URL
VIEW PROJECT HOME PAGE
The Antarctic Glaciological Data Center Web site
Reference
Ahn, J. and Brook, E. J., Atmospheric CO2 and climate from 65 to 30 ka B.P., Geophysical Research Letters, 34, L10703, doi:10.1029/2007GL029551 (2007)
Ahn, J. and Brook, E.J. Atmospheric CO2 and climate change on millennial time scales during the last glacial period, Science, 322, 83-85, doi: 10.1126/science.1160832 (2008)
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2007-10-26
Last DIF Revision Date: 2013-03-18
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