Entry_ID: NSIDC-0121
Entry_Title: Visible Stratigraphic Dating, Siple Dome and Upstream C Cores
Group: Data_Set_Citation
   Dataset_Creator: Richard Alley
   Dataset_Title: Visible Stratigraphic Dating, Siple Dome and Upstream C Cores
   Dataset_Release_Date: 1997-01-01
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0121.html
   Dataset DOI: http://dx.doi.org/10.7265/N53F4MHS
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: Personnel
   Role: Investigator
   First_Name: Richard
   Last_Name: Alley
   Email: ralley@essc.psu.edu
   Phone: 1 814 863-1700 
   Group: Contact_Address
      Address: Pennsylvania State University
      Address: Department of Geosciences
      Address: 306 Deike Building
      City: University Park
      Province_or_State: PA
      Postal_Code: 16802
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Thickness/Ice Sheet Thickness
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
   Variable_Level_1: Ice Depth/Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Stratigraphy
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Paleoclimate
   Term: Ice Core Records
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Paleoclimate
   Term: Ice Core Records
   Variable_Level_1: Ice Core Air Bubbles
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Paleoclimate
   Term: Ice Core Records
   Variable_Level_1: Isotopes
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Thickness/Ice Sheet Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Depth/Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Stratigraphy
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: accumulation
Keyword: AGDC
Keyword: Antarctica
Keyword: bubble
Keyword: densification
Keyword: Glaciology
Keyword: Ice Core
Keyword: Ice Sheet
Keyword: ISOTOPES
Keyword: NSIDC
Keyword: Paleotemperature
Keyword: Siple
Keyword: Siple Coast
Keyword: Siple Dome
Keyword: Snow
Keyword: stratigraphy
Keyword: thermometry
Keyword: WAIS
Keyword: WAISCORES
Sensor_Name: CORING DEVICES
Source_Name: GROUND-BASED OBSERVATIONS
Source_Name: GROUND STATIONS
Group: Temporal_Coverage
   Start_Date: 1997-06-01
   Stop_Date: 1997-08-31
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -81
   Northernmost_Latitude: -81
   Westernmost_Longitude: -149
   Easternmost_Longitude: -149
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Project: WAISCORES > West Antarctic Ice Sheet Cores
Data_Set_Language: English
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: 500 KB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Reference

   Alley, R. B. 2000. The Younger Dryas cold interval as viewed from central 
   Greenland. Quaternary Science Reviews 19, 213-226.

   Alley, R. B. and P. U. Clark. 1999. The deglaciation of the northern 
   hemisphere: a global perspective. Annual Reviews of Earth and Planetary 
   Sciences 27, 149-182.

   Alley, R. B. and K. M. Cuffey. 2001. Oxygen- and hydrogen-isotopic ratios of 
   water in precipitation: Beyond paleothermometry. In J.W. Valley and D. Cole, 
   eds., Stable Isotope Geochemistry, Reviews in Mineralogy and Geochemistry, v. 
   43, Mineralogical Society of America.

   Alley, R. B. and J. J. Fitzpatrick. 1999. Conditions for bubble elongation in 
   cold ice-sheet ice. Journal of Glaciology 45, 147-154. 

    Alley, R. B., A. M. Agustsdottir and P. J. Fawcett. 1999. Ice-core evidence 
   of Late-Holocene reduction in north Atlantic ocean heat transport, in Clark, 
   P.U., R.S. Webb and L.D. Keigwin, eds., Mechanisms of Global Climate Change at 
   Millennial Time Scales, Geophysical Monograph 112, American Geophysical Union, 
   Washington, DC, 301-312.

   Alley, R. B., S. Anandakrishnan and P. Jung. 2001. Stochastic resonance in the 
   North Atlantic. Paleoceanography 16, 190-198.

    Alley, R. B., S. Anandakrishnan, P. Jung and A. Clough. 2001 Stochastic 
   resonance in the north Atlantic: Further Insights. In D. Seidov, B.J. Haupt 
   and M. Maslin, eds., The Oceans and Rapid Climate Change: Past, Present and 
   Future, Geophysical Monograph 126, p. 57-68.

   Alley, R. B., E. J. Brook and S. Anandakrishnan. 2002. A northern lead in the 
   orbital band: North-south phasing of ice-age events. Quaternary Science 
   Reviews, 21, 431-441.

   Alley, R. B., P. U. Clark, L. D. Keigwin and R. S. Webb. 1999. Making sense of 
   millennial-scale climate change, in Clark, P.U., R.S. Webb and L.D. Keigwin, 
   eds., Mechanisms of Global Climate Change at Millennial Time Scales, 
   Geophysical Monograph 112, American Geophysical Union, Washington, DC, 385-394.

   Clark, P. U., R. B. Alley and D. Pollard. 1999. Northern hemisphere ice-sheet 
   influences on global climate change. Science 286, 1103-1111.

   Spencer, M., R.B. Alley, and T.T. Creyts. 2001. Firn densification: an 
   empirical model. Journal of Glaciology 47(159) 671-676.   

   Steig, E. J. and R. B. Alley. 2002. Phase relationships between Antarctic and 
   Greenland climate records. Annals of Glaciology 35(1), 451-456.

End_Group
Group: Summary

   This data set is part of the West Antarctic Ice Sheet cores (WAISCORES) 
   project, an NSF-funded project to understand the influence of the West 
   Antarctic Ice Sheet on climate and sea level change. WAISCORES researchers 
   acquired and analyzed ice cores from the Siple Dome, in the Siple Coast 
   region, West Antarctica.

   This data set includes melt layers and annual layer data for Siple Dome cores 
   A through J, and upstream core C (UpC). Cores were examined on a light table 
   after the core had been sectioned longitudinally and samples removed for 
   isotopic, chemical, and other analyses, and after the surface had been 
   smoothed using a planer. Major stratigraphic features were noted, such as 
   coarse-grained and fine-grained firn at shallow depths, and coarse-bubbled and 
   fine-bubbled ice at greater depth. Melt layers were identified as bubble-free 
   or nearly-bubble-free zones. Core lengths ranged from 30 to 133 meters.

   Data in this collection were obtained in the summer of 1997. The data set is 
   available via FTP as ACSII data (.dat), metadata (.meta) and text (.txt) files.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/waiscores/
   Description: WAISCORES Product Web Site
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 1997-01-01
Last_DIF_Revision_Date: 2014-03-14
DIF_Revision_History: Removed USADCC logo for Search cleanup.