Entry_ID: NSIDC-0314
Entry_Title: Atmospheric CO2 and Climate: Byrd Ice Core, Antarctica
Group: 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
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Jinho
   Last_Name: Ahn
   Email: jinhoahn@snu.ac.kr
   Phone: 1 541 737-1377 x
   Group: Contact_Address
      Address: Seoul National University
      Address: School of Earth and Environmental Sciences
      Address: 599 Kwanak-ro
      Address: Kwanak-gu
      Address: School of Earth and Environmental Sciences
      Address: Seoul National University
      Address: Seoul 151742, South Korea
      Country: Korea
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Edward
   Middle_Name: J
   Last_Name: Brook
   Email: brooke@geo.oregonstate.edu
   Phone: 1 541 737-8197 
   Group: Contact_Address
      Address: Oregon State University
      Address: Department of Geosciences
      Address: 104 Wilkinson Hall
      City: Corvallis
      Province_or_State: OR
      Postal_Code: 97331-5506
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Chemistry
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Chemistry
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Atmospheric Chemistry
Keyword: Atmospheric CO2
Keyword: Atmospheric Gases
Keyword: Climate
Keyword: Climate Change
Keyword: Climate Research
Keyword: Ice Core
Keyword: Ice Core Chemistry
Keyword: Ice Core Data
Keyword: Ice Core Gas Records
Keyword: Ice Cores
Sensor_Name: CORING DEVICES
Group: Paleo_Temporal_Coverage
   Paleo_Start_Date: 90 ka bp
   Paleo_Stop_Date: 20 ka bp
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -80.01
   Northernmost_Latitude: -80.01
   Westernmost_Longitude: -119.833611
   Easternmost_Longitude: -119.833611
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Data_Set_Language: English
Originating_Center: AGDC
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: AGDC > Antarctic Glaciological Data Center
   Data_Center_URL: http://nsidc.org/agdc/
   Group: Personnel
      Role: Data Center Contact
      First_Name: AGDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 x
      Fax: 1 303  492-2468 x
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 45 KB
   Distribution_Format: Microsoft Excel
End_Group
Group: 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)

End_Group
Group: 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.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/agdc/
   Description: The Antarctic Glaciological Data Center Web site
End_Group
IDN_Node: AMD/US
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2007-10-26
Last_DIF_Revision_Date: 2013-03-18
DIF_Revision_History:  Added DOI