Entry_ID: NSIDC-0392
Entry_Title: Twenty-Three Century-scale Ice Core Records of Hydrogen Peroxide (H2O2) from West Antarctica
Group: Data_Set_Citation
   Dataset_Creator: Markus Frey
   Dataset_Title: Twenty-Three Century-scale Ice Core Records of Hydrogen Peroxide (H2O2) from West Antarctica
   Dataset_Release_Date: 2009-06-01
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0392.html
   Dataset DOI: http://dx.doi.org/10.7265/N5TM7826
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Roger
   Last_Name: Bales
   Email: rbales@ucmerced.edu
   Phone: 1 209 228-4348 
   Group: Contact_Address
      Address: University of California - Merced
      Address: School of Engineering
      Address: 5200 North Lake Rd.
      City: Merced
      Province_or_State: California
      Postal_Code: 95343
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Markus
   Last_Name: Frey
   Email: mfrey@ucmerced.edu
   Group: Contact_Address
      Address: University of California - Merced
      Address: School of Engineering
      Address: 5200 North Lake Rd.
      City: Merced
      Province_or_State: California
      Postal_Code: 95343
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Joseph
   Last_Name: McConnell
   Email: jmcconn@dri.edu
   Phone: 1 775 673-7348 
   Group: Contact_Address
      Address: Desert Research Institute
      Address: Division of Hydrological Sciences
      Address: 2215 Raggio Parkway
      City: Reno
      Province_or_State: NV
      Postal_Code: 89512
   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: Glaciers/Ice Sheets
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Firn
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
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: Antarctic
Keyword: Antarctica
Keyword: Antarctic Ice Sheet
Keyword: Hydrogen Peroxide
Keyword: Ice Core
Keyword: Ice Core Chemistry
Keyword: Ice Core Data
Keyword: Ice Core Gas Records
Keyword: Ice Cores
Keyword: Polar Firn Air
Keyword: Shallow Firn Air
Keyword: Snow Chemistry
Keyword: U.S. ITASE
Keyword: WAIS
Keyword: West Antarctica
Keyword: West Antarctic Ice Sheet
Sensor_Name: FLUORESCENCE SPECTROSCOPY
Sensor_Name: GAS SENSORS
Source_Name: FIELD INVESTIGATION
Source_Name: FIELD SURVEYS
Source_Name: LABORATORY
Group: Temporal_Coverage
   Start_Date: 2000-11-20
   Stop_Date: 2003-01-15
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: -76
   Westernmost_Longitude: -124
   Easternmost_Longitude: -84
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Project: US-ITASE > United States - International Antarctic Scientific Expedition
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: 4.4 MB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Reference

   Frey, M. M., R. C. Bales, and J. R. McConnell. 2006. Climate Sensitivity of 
   the Century-Scale Hydrogen Peroxide (H2O2) Record Preserved in 23 Ice Cores 
   from West Antarctica. J. Geophys. Res., 111(D21301), doi:10.1029/2005JD006816. 
   Steig, E. J., P. A. Mayewski, D. Dixon, S. Kaspari, M. M. Frey, D. P. 
   Schneider, S. A. Arcone, and G. S. Hamilton. 2005. High-Resolution Ice Cores 
   from US ITASE (West Antarctica): Development and Validation of Chronologies 
   and Determination of Precision and Accuracy. Annals of Glaciology, 41:77–84.

End_Group
Group: Summary

   This data set contains sub-annually resolved concentrations of hydrogen 
   peroxide (H2O2), snow, firn and ice from 23 sites on the West Antarctic Ice 
   Sheet (WAIS. Data were obtained from 2000 to 2003 during the US International 
   Trans-Antarctic Scientific Expedition (US ITASE) deployments. Cores were 
   drilled approximately every 100-300 kilometers down to depths of up to 120 
   meters. H2O2 was measured in snow, firn, and ice using a fluorescence 
   detection method either in situ after sampling or in the lab 9-12 months after 
   sample collection. Depending on local accumulation rate, up to 500 year long 
   records were obtained from the WAIS region (76-90ºS / 84-124ºW). Core H2O2 
   concentrations are reported in parts per billion by weight (ppbw) as a 
   function of decimal year.

   Data are available via FTP as ASCII text files (.txt).

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/agdc/
   Description: Antarctic Glaciological Data Center web pages
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/agdc/
   Description: View Product Home Page
End_Group
IDN_Node: AMD/US
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2009-06-01
Last_DIF_Revision_Date: 2013-03-18
DIF_Revision_History:  Added DOI