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

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

doi:10.5331/bgr.33.7

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

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

Author information

Sumito MATOBA
Institute of Low Temperature Science, Hokkaido University
Hideaki MOTOYAMA
National Institute of Polar Research
SOKENDAI (The Graduate University for Advanced Studies)
Koji FUJITA
Graduate School of Environmental Studies, Nagoya University
Tetsuhide YAMASAKI
Avangnaq
Masahiro MINOWA
Institute of Low Temperature Science, Hokkaido University
Graduate School of Environmental Science, Hokkaido University
Yukihiko ONUMA
Graduate School of Science, Chiba University
Yuki KOMURO
Graduate School of Science and Engineering, Yamagata University
Teruo AOKI
Meteorological Research Institute
Satoru YAMAGUCHI
Snow and Ice Research Center, National Research Institute of Earth Science and Disaster Prevention
Shin SUGIYAMA
Institute of Low Temperature Science, Hokkaido University
Hiroyuki ENOMOTO
National Institute of Polar Research
SOKENDAI (The Graduate University for Advanced Studies)

Keywords: Greenland Ice Sheet, ice core, ice velocity, automated weather station, Qaanaaq

JOURNAL FREE ACCESS

2015 Volume 33 Pages 7-14

DOI https://doi.org/10.5331/bgr.33.7

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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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