Field activities of the “Snow Impurity and Glacial Microbe effects on abrupt warming in the Arctic” (SIGMA) Project in Greenland in 2011-2013（2011-2013年グリーンランドにおけるSIGMAプロジェクトの野外活動報告）

• AOKI Teruo（青木輝夫）

  Meteorological Research Institute

• MATOBA Sumito（的場澄人）

  Institute of Low Temperature Science, Hokkaido University

• UETAKE Jun（植竹淳）

  National Institute of Polar Research Transdisciplinary Research Integration Center

• TAKEUCHI Nozomu（竹内望）

  Department of Earth Sciences, Graduate School of Science, Chiba University

• MOTOYAMA Hideaki（本山秀明）

  National Institute of Polar Research

書誌事項

タイトル別名

• Field activities of the “Snow Impurity and Glacial Microbe effects on abrupt warming in the Arctic” (SIGMA) Project in Greenland in 2011-2013

抄録

Field activities of the “Snow Impurity and Glacial Microbe effects on abrupt warming in the Arctic” (SIGMA) Project in Greenland in the summer season of 2011-2013 are reported;this consists of (1) glaciological and meteorological observations and (2) biological observations.　In 2011, we conducted a field reconnaissance in the Qaanaaq, Ilulissat and Kangerlussuaq areas to enable continuous meteorological observations with automatic weather stations (AWS), campaign observations for glaciology, meteorology and Biology and shallow ice core drilling, which were planned for 2012-2014.　Based on the results, we chose the Qaanaaq area in northwest Greenland as our main activity area and the Kangerlussuaq area in mid-west Greenland partly for biological observations.　In 2012, we conducted field observations for (1) and (2) mentioned above together with installations of two AWSs at site SIGMA-A on The Greenland ice sheet (GrIS) and at site SIGMA-B on the Qaanaaq ice cap (QIC) from June to August.　Surface snow and ice over all of the QIC melted in July and August 2012, and most of the Glacier surface appeared to be dark-colored, probably due to mineral dust and glacial microbial products.　In 2013, we carried out similar observations in the Qaanaaq area.　However, the weather and Glacier surface conditions were considerably different from those in 2012.　Snow cover over the summer of 2013 remained over large areas with elevations higher than about 700 m on QIC.　Biological activity on the Glacier surface appears to be substantially lower as compared to that in 2012.

収録刊行物

• 氷河情報センター

  氷河情報センター 32 (0), 3-20, 2014

  公益社団法人 日本雪氷学会

キーワード

• SIGMA（SIGMA）
• Greenland（グリーンランド）
• Qaanaaq（カナック）
• snow impurities（積雪不純物）
• glacial microbes（雪氷微生物）

詳細情報

• CRID: 1390282679641667712
• NII論文ID: 120005472229
• NII論文ID: 130004679718
• DOI: 10.5331/bgr.32.3
• ISSN: 18848044
• ISSN: 13453807
• HANDLE: 2115/56970
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可