S. Matoba, H. Motoyama, K. Fujita, Tetsuhide Yamasaki, M. Minowa, Y. Onuma, Yuki Komuro, T. Aoki, S. Yamaguchi, S. Sugiyama, H. Enomoto
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Glaciological and meteorological observations at the SIGMA-D site, northwestern Greenland Ice Sheet
During spring 2014, we drilled an ice core on the northwestern Greenland Ice Sheet, recovering a core of total length 225 m. 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 60 m, and the temperature in the borehole was -25.6 °C at a depth of 10 m. 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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