Glaciological observations in 2012 and 2013 at SIGMA-A site, Northwest Greenland（北西グリーンランド , SIGMA-Aサイトにおける 2012年, 2013年の雪氷調査）

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概要

• 論文の詳細を見る

•     Glaciological observations were conducted in 2012 and 2013 at the SIGMA-A site on the northwest Greenland ice sheet (78°03'06"N, 67°37'42"W, 1490 m a.s.l.) as part of the Snow Impurity and Glacial Microbe effects on abrupt warming in the Arctic (SIGMA) project.　The meteorological conditions during the two observations were quite different.　The meteorological condition during the 2012 observation period was warm, and heavy rainfall occurred during the observation period, thus the snow was very wet.　In contrast, the meteorological condition during the observation period in 2013 was cold, with a blowing snow event, thus the snow was quite dry.    The glaciological observations in 2012 consisted of 1) snow-stake measurements, 2) snow pit observations, 3) grain size observations for validation of satellite-derived snow products, 4) snow specific surface area measurements using a near-infrared camera, 5) snow sampling for chemical analyses, and 6) drilling of firn cores with a hand auger.　The glaciological observations in 2013 consisted of 1) snow-stake measurements, 2) snow pit observations, and 3) snow sampling for chemical analyses.

• 公益社団法人 日本雪氷学会の論文

著者

• MATOBA Sumito（的場澄人）

  Institute of Low Temperature Science, Hokkaido University

• AOKI Teruo（青木輝夫）

  Meteorological Research Institute

• NIWANO Masashi（庭野匡思）

  Meteorological Research Institute

• TANIKAWA Tomonori（谷川朋範）

  Japan Aerospace Exploration Agency

• YAMAGUCHI Satoru（山口

  Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Prevention

• YAMAZAKI Tetsuhide（山崎哲秀）

  Avangnaq

• TSUSHIMA Akane（對馬あかね）

  Graduate School of Environmental Science, Hokkaido University

関連論文

• 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）
• Light-absorbing snow impurity concentrations measured on Northwest Greenland ice sheet in 2011 and 2012（2011年及び2012年に北西グリーンランド氷床上で観測された光吸収性積雪不純物濃度）
• Application of snow specific surface area measurement using an optical method based on near-infrared reflectance around 900-nm wavelength to wet snow zones in Japan（近赤外領域の反射率を用いた日本の濡れ雪地域の積雪比表面積の測定）
• Effects of temperature and grain type on time variation of snow specific surface area（積雪比表面積の時間変化に及ぼす温度および雪質の影響）
• Dependence of thermal infrared emissive behaviors of snow cover on the surface snow type（雪面の熱赤外射出特性の雪質依存性）
• Glaciological observations in 2012 and 2013 at SIGMA-A site, Northwest Greenland（北西グリーンランド , SIGMA-Aサイトにおける 2012年, 2013年の雪氷調査）
• Evaluation of updated physical snowpack model SMAP（アップデートした積雪変質モデルSMAPの精度評価）

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