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An intermediate-depth (1751 m) ice core was drilled at the South Pole between 2014 and 2016 using the newly designed US Intermediate Depth Drill. The South Pole ice core is the highest-resolution interior East Antarctic ice core record that extends into the glacial period. The methods used at the South Pole to handle and log the drilled ice, the procedures used to safely retrograde the ice back to the National Science Foundation Ice Core Facility (NSF-ICF), and the methods used to process and sample the ice at the NSF-ICF are described. The South Pole ice core exhibited minimal brittle ice, which was likely due to site characteristics and, to a lesser extent, to drill technology and core handling procedures.


Earth Systems Research Center

Publication Date


Journal Title

Annals of Glaciology


Cambridge University Press

Digital Object Identifier (DOI)


Grant/Award Number and Agency

1142646 National Science Foundation

Document Type



This is an article published by Cambridge University Press in Annals of Glaciology in 2020, available online:

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Glaciology Commons