Bulletin of Glaciological Research
Online ISSN : 1884-8044
Print ISSN : 1345-3807
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Glaciological and meteorological observations at the SIGMA-D site, northwestern Greenland Ice Sheet
Sumito MATOBAHideaki MOTOYAMAKoji FUJITATetsuhide YAMASAKIMasahiro MINOWAYukihiko ONUMAYuki KOMUROTeruo AOKISatoru YAMAGUCHIShin SUGIYAMAHiroyuki ENOMOTO
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Volume 33 (2015) Pages 7-14

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Abstract

During spring 2014, we drilled an ice core on the northwestern Greenland Ice Sheet, recovering a core of total length 225m. We also conducted stratigraphic observations, measurements of the density of the ice core, near-infrared photography of the ice core, preparation of liquid samples for chemical analysis, and measurements of borehole temperature. The pore close-off depth was 60m, and the temperature in the borehole was −25.6°C at a depth of 10m. In addition, we conducted snow-pit observations, ice-velocity and surface-elevation measurements using the global positioning system (GPS), meteorological observations, and installation of an automated weather station (AWS).

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