Abstract
AbstractAn 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.
Highlights
Supported by the US National Science Foundation, a new 1751 m long ice core was recovered at the South Pole, extending >54 000 years into the past (Winski and others, 2019)
The South Pole ice core (SPICEcore) is the highest-resolution interior East Antarctic ice core that extends into the last glacial period and is the first record longer than 3000 years collected south of 82° latitude (Fig. 1)
SPICEcore provides a record of climate history from a distinct area of the East Antarctic plateau that is influenced both by conditions of the high East Antarctic plateau and by weather systems that cross the West Antarctic ice sheet from the Atlantic Weddell Sea (Filchner–Ronne Ice Shelf) and Pacific Ross Seas (Ross Ice Shelf)
Summary
Transportation and processing for the South Pole ice core (SPICEcore) project.
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