2001 Fiscal Year Annual Research Report

環北極雪氷掘削コアによる比較環境変動研究

Research Project

Project/Area Number	11208202
Research Institution	National Institute of Polar Research
Principal Investigator	東久美子国立極地研究所, 研究系, 助教授 (80202620)
Co-Investigator(Kenkyū-buntansha)	神山孝吉国立極地研究所, 研究系, 教授 (70135507) 藤井理行国立極地研究所, 北極圏環境研究センター, 教授 (20125214) 渡辺興亜国立極地研究所, 所長 (60111861) 庄子仁北見工業大学, 工学部, 教授 (50201562) 古川晶雄国立極地研究所, 研究系, 助手 (70261120)
Keywords	雪氷コア解析 / シベリア広域積雪調査 / 環北極海雪氷コア観測計画 / NOrth GRIP計画 / 北極域の環境変動の復元 / 霧氷コアでの古環境復元計画 / 低温期 / 温暖期
Research Abstract	1.北グリーンランド氷床深層コア掘削解析研究計画(NGRIP計画)への参加:グリーンランド氷床深層コアの総合解析から、過去の地球環境情報、特にイーミアン間氷期およびそれ以前の気候変動情報を取得することを目的とし、北グリーンランドにおいて氷床深層コア掘削を実施した。本年度は深さ2931mから3001mまで深層コア掘削を行った。また、表層部におけるフィルンエア・サンプリング(78m深)と浅層コア採取(100m深)を実施した。 2.アルタイ山脈における氷河調査;中央アジアにおける気候環境変動の復元を目指し、ロシア連邦アルタイ共和国ソフィスキー氷河においてハンドオーガーによる25.1mまでのコア採取を実施した。現地ではこのコアを融解し、化学分析用サンプル(水試料)を作成し、これらを国内に持ち帰った。また、現地では掘削孔内の温度分布測定および4.5mピット観測、気象観測を実施した。 3.カナダ、マウントローガンにおける氷河調査:北太平洋域における気候・環境変動の復元を目的とし、平成14年度にカナダ、ユーコン準州,マウントローガンにおいて雪氷、コア掘削を行うため、積雪量、積雪中化学物質、酸素同位対比、融雪量の標高依存性を調べた。標高の異なる5地点でピット観測とピット試料の採取を実施した。調査の結果、年間積雪量は3-4mであること、また、標高4200mのキングコルは夏期でも殆ど融雪が起こらず雪氷コア掘削地点として最適であることが分かった。

Research Products

(14 results)

All Other

All Publications (14 results)

[Publications] K.Goto-Azuma: "Ice core studies of anthropogenic sulfate and nitrate trends in the Arctic"Journal of Geophysical Research. 106. 4959-4969 (2001)
[Publications] O.Watanabe: "Studies on climatic and environmental changes during the last few hundred years using ice cores from various sites in 36. Nordaustlandet, Svalbard"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 227-242 (2001)
[Publications] N.Takeuchi: "Biological characteristics of dark colored material (cryoconite) on Canadian Arctic glaciers (Devon and Penny ice caps)"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 495-506 (2001)
[Publications] H.Motoyama: "Regional characteristics of chemical constituents in surface snow, Arctic cryosphere"Polar Meteorology and Glaciology. 15. 55-66 (2001)
[Publications] K.Goto-Azuma: "An ice core record over the last two centuries from Penny Ice Cap, Baffin Island, Canada"Annals of Glaciology. 35(印刷中). (2002)
[Publications] S.Matoba: "Meteorological observation and chemical compositions of precipitation during the winter and spring season in 1997/98 at Siorapaluk, northwestern Greenland"Bulletin of Glaciological Research. (印刷中). (2002)
[Publications] Fujii, Y.: "Outline of Japan-Russia joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains in 2000 and 2001"Bulletin of Glaciological Research. (印刷中). (2002)
[Publications] 藤井理行: "ロシア・アルタイ山脈ソフィスキー氷河における雪氷観測"雪氷. 62・6. 549-556 (2000)
[Publications] R.Rothlisberger: "Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes"Annals of Glaciology. 35(印刷中). (2002)
[Publications] Yoshiyuki Fujii: "210-year ice core records of dust storm, volcanic eruptions and acidification at Site-J, Greenland"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 209-220 (2001)
[Publications] Makoto Igarashi: "Stable oxygen isotope ratio observed in the precipitation at Ny-Alesund, Svalbard"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 169-182 (2001)
[Publications] Hitoshi Shoji: "Japanese glaciological study efforts in the North Greenland Ice Core Project (NGRIP)"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 221-225 (2001)
[Publications] Kokichi Kamiyama: "Field observations of the Japanese Arctic Glaciological Expeditions in Svalbard from 1993 to 1995"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 243-252 (2001)
[Publications] Hideaki Motoyama: "Activities of the Japanese Arctic Glaciological Expedition in 1999 (JAGE 1999)"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 253-260 (2001)

2001 Fiscal Year Annual Research Report

環北極雪氷掘削コアによる比較環境変動研究

Principal Investigator

東 久美子 国立極地研究所, 研究系, 助教授 (80202620)

Research Products

[Publications] K.Goto-Azuma: "Ice core studies of anthropogenic sulfate and nitrate trends in the Arctic"Journal of Geophysical Research. 106. 4959-4969 (2001)

[Publications] O.Watanabe: "Studies on climatic and environmental changes during the last few hundred years using ice cores from various sites in 36. Nordaustlandet, Svalbard"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 227-242 (2001)

[Publications] N.Takeuchi: "Biological characteristics of dark colored material (cryoconite) on Canadian Arctic glaciers (Devon and Penny ice caps)"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 495-506 (2001)

[Publications] H.Motoyama: "Regional characteristics of chemical constituents in surface snow, Arctic cryosphere"Polar Meteorology and Glaciology. 15. 55-66 (2001)

[Publications] K.Goto-Azuma: "An ice core record over the last two centuries from Penny Ice Cap, Baffin Island, Canada"Annals of Glaciology. 35(印刷中). (2002)

[Publications] S.Matoba: "Meteorological observation and chemical compositions of precipitation during the winter and spring season in 1997/98 at Siorapaluk, northwestern Greenland"Bulletin of Glaciological Research. (印刷中). (2002)

[Publications] Fujii, Y.: "Outline of Japan-Russia joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains in 2000 and 2001"Bulletin of Glaciological Research. (印刷中). (2002)

[Publications] 藤井理行: "ロシア・アルタイ山脈ソフィスキー氷河における雪氷観測"雪氷. 62・6. 549-556 (2000)

[Publications] R.Rothlisberger: "Nitrate in Greenland and Antarctic ice cores: a detailed description of post-depositional processes"Annals of Glaciology. 35(印刷中). (2002)

[Publications] Yoshiyuki Fujii: "210-year ice core records of dust storm, volcanic eruptions and acidification at Site-J, Greenland"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 209-220 (2001)

[Publications] Makoto Igarashi: "Stable oxygen isotope ratio observed in the precipitation at Ny-Alesund, Svalbard"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 169-182 (2001)

[Publications] Hitoshi Shoji: "Japanese glaciological study efforts in the North Greenland Ice Core Project (NGRIP)"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 221-225 (2001)

[Publications] Kokichi Kamiyama: "Field observations of the Japanese Arctic Glaciological Expeditions in Svalbard from 1993 to 1995"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 243-252 (2001)

[Publications] Hideaki Motoyama: "Activities of the Japanese Arctic Glaciological Expedition in 1999 (JAGE 1999)"Mem. Natl. Inst. Polar Res., Spec. Issue. 54. 253-260 (2001)

東久美子国立極地研究所, 研究系, 助教授 (80202620)