Entry_ID: NSIDC-0307
Entry_Title: Cosmogenic Radionuclides in the Siple Dome A Ice Core
Group: Data_Set_Citation
   Dataset_Creator: Kunihiko Nishiizumi
   Dataset_Title: Cosmogenic Radionuclides in the Siple Dome A Ice Core
   Dataset_Release_Date: 2007-05-31
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0307.html
   Dataset DOI: http://dx.doi.org/10.7265/N5XK8CGS
End_Group
Group: Personnel
   Role: Investigator
   First_Name: K.
   Last_Name: Nishiizumi
   Email: kuni@ssl.berkeley.edu
   Phone: 1 510 643-9361 
   Fax: 1 510  643-7629 
   Group: Contact_Address
      Address: 7 Gauss Way
      City: Berkeley
      Province_or_State: CA
      Postal_Code: 94720-7450
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: R.
   Middle_Name: C.
   Last_Name: Finkel
   Email: finkel1@llnl.gov
   Phone: 1 925 422-2044 
   Fax: 1 925  422-0208 
   Group: Contact_Address
      Address: LLNL, L-219
      City: Livermore
      Province_or_State: CA
      Postal_Code: 64550
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   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
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Chemistry
   Detailed_Variable: Cosmogenic Radionuclides
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Paleoclimate
   Term: Ice Core Records
   Variable_Level_1: Isotopes
   Detailed_Variable: Beryllium-10
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Paleoclimate
   Term: Ice Core Records
   Variable_Level_1: Isotopes
   Detailed_Variable: Chlorine-36
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
   Detailed_Variable: Cosmogenic Radionuclides
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: AGDC
Keyword: Antarctica
Keyword: Beryllium-10
Keyword: Chlorine-36
Keyword: Cosmogenic nuclide
Keyword: Ice Core
Keyword: Ice Core Chemistry
Keyword: OPP-0126343
Keyword: Siple Dome
Keyword: WAIS
Keyword: West Antarctica
Sensor_Name: AMS > ACCELERATOR MASS SPECTROMETERS
Sensor_Name: ION CHROMATOGRAPHS
Source_Name: GROUND STATIONS
Group: Paleo_Temporal_Coverage
   Paleo_Start_Date: 100 kyBP
   Paleo_Stop_Date: 1997
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -81.6588
   Northernmost_Latitude: -81.6588
   Westernmost_Longitude: -148.812
   Easternmost_Longitude: -148.812
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
   Detailed_Location: SIPLE DOME
End_Group
Project: NSF/OPP > Division of Polar Programs, Antarctic Research, Glaciology
Group: Quality

   These are preliminary data of cosmogenic radionuclides (10Be and 36Cl) in the 
   Siple Dome A ice core. Depths are at variable intervals and are not 
   continuous. Investigators have provided 36Cl/Cl ratios. Calculation of 36Cl 
   concentration (atom/g) requires the Cl concentration in the same sample, which 
   is not available. All 10Be results have more than 20% uncertainty due to 
   accelerator mass spectrometry (AMS) calibration issues and the uncertainty in 
   the volume of melting water; these require large corrections.

End_Group
Data_Set_Language: English
Originating_Center: AGDC
Group: Data_Center
   Data_Center_Name: UC-BERKELEY/SSL > Space Sciences Laboratory, University of California, Berkeley
   Data_Center_URL: http://www.ssl.berkeley.edu/
   Group: Personnel
      Role: Data Center Contact
      First_Name: K.
      Last_Name: Nishiizumi
      Email: kuni@ssl.berkeley.edu
      Phone: 1 510 643-9361 
      Fax: 1 510  643-7629 
      Group: Contact_Address
         Address: 7 Gauss Way
         City: Berkeley
         Province_or_State: CA
         Postal_Code: 94720-7450
         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: 136 KB
   Distribution_Format: PDF
End_Group
Group: Summary

   This data set includes a  record of cosmogenic radionuclide concentrations in 
   the Siple Dome A ice core collected as part of the West Antarctic ice core 
   program. The investigators  measured profiles of both 10Be 
   (half-life = 1.5x106 years) and 36Cl (half-life = 
   3.0x105 years) in the entire ice core, which spans the time period 
   from the present to about 100,000 years before present. These data are being 
   used for perfecting the ice core chronology, deducing the history of solar 
   activity, deducing the history of variations in the geomagnetic field, and 
   studying the possible role of solar variations on climate. 

   Data are distributed as a PDF file and are available via FTP.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0098.html
   Description: Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0134.html
   Description: Siple Dome Highlights: Stable Isotopes
End_Group
IDN_Node: AMD/US
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2007-05-31
Last_DIF_Revision_Date: 2013-03-18
DIF_Revision_History:  Added DOI