Journal Article Glaciological and meteorological observations at the SIGMA-D site, northwestern Greenland Ice Sheet

MATOBA, Sumito  ,  MOTOYAMA, Hideaki  ,  FUJITA, Koji  ,  YAMASAKI, Tetsuhide  ,  MINOWA, Masahiro  ,  ONUMA, Yukihiko  ,  KOMURO, Yuki  ,  AOKI, Teruo  ,  YAMAGUCHI, Satoru  ,  SUGIYAMA, Shin  ,  ENOMOTO, Hiroyuki

33 ( 0 )  , pp.7 - 14 , 2015-11-10 , Japanese Society of Snow and Ice
ISSN:1345-3807
Description
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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http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/61280/1/33_7%286%29.pdf

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