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

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Title: Field activities of the “Snow Impurity and Glacial Microbe effects on abrupt warming in the Arctic” (SIGMA) Project in Greenland in 2011-2013
Other Titles: 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)
Authors: AOKI, Teruo1 Browse this author →KAKEN DB
MATOBA, Sumito2 Browse this author →KAKEN DB
UETAKE, Jun3 Browse this author →KAKEN DB
TAKEUCHI, Nozomu4 Browse this author →KAKEN DB
MOTOYAMA, Hideaki5 Browse this author →KAKEN DB
Authors(alt): 青木, 輝夫1
的場, 澄人2
植竹, 淳3
竹内, 望4
本山, 秀明5
Keywords: SIGMA
Greenland
Qaanaaq
snow impurities
glacial microbes
グリーンランド
カナック
積雪不純物
雪氷微生物
Issue Date: Aug-2014
Publisher: The Japanese Society of Snow and Ice
Journal Title: Bulletin of Glaciological Research
Volume: 32
Start Page: 3
End Page: 20
Publisher DOI: 10.5331/bgr.32.3
Abstract: 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.
Type: article
URI: http://hdl.handle.net/2115/56970
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 的場 澄人

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