Global Scale climatic and Environmental Study through Polar Deep Ice Cores

通过极地深冰芯进行全球规模的气候和环境研究

• 批准号: 10204101
• 负责人: WATANABE Okitsugu
• 金额: $ 18.94万
• 依托单位: National Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas (B)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10204101/
• 关键词: Deep ice core; Dome Fuji; Glacial cycle; stable isotopes; trace gases; dust; ion chemistry; tephra layers; 基本解析データ; ドームふじ深層コア; 氷床掘削技術; 国際共同研究; 氷期・間氷期サイクル; 総合解析; グリーンランド; 南極; データベース; ニュースレター; メーリングリスト

Analyses of the Dome Fuji deep ice core revealed the detailed climatic and environmental changes during the 320, 000 years. There were three glacial cycles during this period. Temperature variations in the three glacial cycles have similar temporal patterns, which have periodicities of 100, 000 years, 40, 000 years and 20, 000 years. However, the amplitudes of temperature variations vary among the three glacial cycles. Various chemical constituents of dust, sea-salt, volcanic origins, in ice, and trace gases in air bubbles show in-phase or anti-phase variations with respect to the temperature changes. Results of the detailed analyses of chemical constituents and trace gases in the Dome Fuji core were compared with those in the deep ice core from North Greenland. The comparison indicated the synchronous and time-lagged climatic and environmental changes between Antarctica and the Arctic.

对富士山冰穹深层冰芯的分析揭示了32万年来气候和环境的详细变化。这一时期有三个冰川周期。三个冰川循环中的温度变化具有相似的时间模式，其周期分别为10万年、4万年和2万年。然而，温度变化的幅度在三个冰期旋回之间有所不同。尘埃、海盐、火山源、冰中以及气泡中的痕量气体的各种化学成分随温度变化而呈现同相或反相变化。对富士冰穹冰芯的化学成分和微量气体的详细分析结果与格陵兰北部的深冰芯进行了比较。对比表明，南极和北极气候环境变化具有同步性和滞后性。

项目成果

Wang, Y.: "A Vostok-type fabric in the NGRIP deep ice core, North Greenland"Annals of Glaciology. 35(in press). (2002)

Wang, Y.：“北格陵兰 NGRIP 深冰芯中的东方型结构”冰川学年鉴。

Ikeda-Fukazawa, T.: "Incoherent Inelastic Neutron Scattering of Clathrate Hydrates"J. Phy. Soci. of Japan. 70. 289-291 (2001)

Ikeda-Fukazawa, T.：“笼形水合物的非相干非弹性中子散射”J。

Ikeda-Fukazawa, T.: "Variation in N2/O2 ratio of occluded air in Dome Fuji Antarctic ice"J. Geophys. Res.. 106No.D16,17. 17799-17810 (2001)

Ikeda-Fukazawa, T.：“南极富士穹顶冰中吸留空气的 N2/O2 比率的变化”J。

Fujii,Y.and Watanabe,O.: "Global climate change and deep ice core drilling at Dome Fuji,Antarctica." Korean Journal of Polar Research. 8. 155-162 (1998)

Fujii,Y. 和 Watanabe,O.：“全球气候变化与南极洲富士穹顶的深冰芯钻探。”

Siegert, M.J.: "Internal Ice-Sheet Radar Layer Profiles and their Relation to Reflection Mechanisms between Dome C and the Transantarctic Mountains"Journal of Glaciology. (印刷中). (2002)

Siegert, M.J.：“内部冰原雷达层剖面及其与 Dome C 和横贯南极山脉之间的反射机制的关系”冰川学杂志（2002 年）。