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Collaborative Research: Combined Physical Property Measurements at Siple Dome - Spencer_0917509
Entry ID: Spencer_0917509

Abstract: This award supports a two-year collaborative effort to more fully understand the climatic history and physical properties of the Siple Dome, Antarctica deep ice core.

We have released an Excel file with firn depth-density data from 88 sites, with site location and name included in the accompanying pdf file.

Also made available is a comma-separated csv file for bubble-number densities in glacier ice, in units of bubbles per cubic centimeter, based on firn densification and grain-growth modeling under steady-state climate conditions. The leftmost column is accumulation rate in centimeters water equivalent, and the top row is temperature in Kelvin.

Purpose: To improve the U.S. capability to analyze ice-core physical properties rapidly and accurately. The Siple Dome ice core from West Antarctica is yielding important paleoclimatic insights, but has proven more difficult than some cores to interpret owing to the large iceflow effects on the paleoclimatic record. Paleoclimatic indicators that do not rely on iceflow corrections thus would be of value. ... View entire text
Data Set Citation
Dataset Originator/Creator: Matthew Spencer
Dataset Title: Firn depth-density data set
Dataset Release Place: Lake Superior State University
Version: Not provided
Data Presentation Form: Excel and pdf
Online Resource:

Dataset Originator/Creator: Matthew K. Spencer
Dataset Title: Bubble-number densities for steady-state climate
Dataset Release Place: Lake Superior State University
Version: Not provided
Data Presentation Form: comma-separated csv file
Online Resource:
Temporal Coverage
Start Date: 1970-01-01
Data Set Progress
Data Center
National Snow and Ice Data Center Supplemental Info
Data Center URL:

Data Center Personnel
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
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Phone: 906-203-0283
Fax: 906-635-2266
Email: mspencer1 at
Contact Address:
Lake Superior State University
Department of Geology and Physics
650 West Easterday Avenue
City: Sault Saint Marie
Province or State: MI
Postal Code: 49783
Country: United States
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2011-06-01
Last DIF Revision Date: 2018-10-01