Basic analytical procedure for Antarctic shallow ice cores

南极浅冰芯的基本分析程序

• 批准号: 12680537
• 负责人: FURUKAWA Teruo
• 金额: $ 2.3万
• 依托单位: Natiomal Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12680537/
• 关键词: clmatic change; deposititional regime; Anarctic ice sheet; ice core; physical analysis; chemical analysis; firn; high time resolution; 南極氷床; 雪氷コア; 極域氷床; 温室効果ガス

In this study, we finished basic analysis of cores from H 231 (obtained in 1980, 90m in length) in the coastal region, from MD 364 (obtained in 2001, 80m in length) and from the south of Dome Fuji (obtained in 1997, 56m in length), in the Antarctic ice sheet. By basic analysis, we did the measurements of stratigraphy, density, the degree of depth hoar, electrical conductivity and the oxygen isotope ratio and chemical analysis and radioisotope analysis (tritium). In addition, we did high time resolution analysis of chemical major constituents as study analysis about H 72 core. In H 72 core, seasonal variation from ECM (solid electrical conductivity) was decided by an error of degree with extracting a season change of ion concentration in the core continually by putting stratum structure together in addition to the average surface mass balance for past 26 years. Climatic and environmental changes for several hundred years past become possible. And a change or seasonal variation can be re-constructed by high time resolution year by year.

在这项研究中，我们对沿海地区H 231的核心进行了基本分析，从MD 364（2001年获得，长度为80m）和来自圆顶Fuji的南部（1997年获得1997年，长度为56m），在反敏感冰盖中。通过基本分析，我们对地层，密度，深度HOAR的程度，电导率以及氧同位素比与化学分析以及放射性同位素分析（Tritium）进行了测量。此外，我们对化学主要成分进行了高度分辨率分析，作为有关H 72核心的研究分析。在H 72核心中，ECM（固体电导率）的季节性变化取决于学位误差，除了在过去26年中的平均表面质量平衡外，还将核心浓度的季节变化不断地通过核心中的季节变化。过去几百年来的气候和环境变化变得可能成为可能。并且可以按年度升高时间分辨率重新构建变化或季节性变化。

项目成果

F.Nishio: "Annual layer determinations and 164-year records of past climate of H72 ice core in East Dronning Maud Land, Antarctica"Annals of Glaciology. 36(印刷中).

F.Nishio：“南极洲东德龙宁莫德地 H72 冰芯的年度层测定和过去气候的 164 年记录”《冰川学年鉴》36（出版中）。

西尾文彦: "南極浅層コア(H72、ドーム南)の基本解析"雪氷. 63. 49-63 (2001)

Fumihiko Nishio：“南极浅层核心（H72，Dome South）的基本分析”《雪与冰》63. 49-63 (2001)。

"Annual layer determinations and 1 64-year records of past climate ofH72 ice core in East Dronning Maud Land, Antarctica"Annals of Glaciology. 36(in print).

“南极洲东德龙宁莫德地 H72 冰芯的年度层测定和过去气候的 1 64 年记录”《冰川学年鉴》。

F.Nishio: "Annual layer determinations and 164-year records of past climate of H72 ice core in East Dronning Maud Land, Antarctica"Annals of Glaciology. 35(印刷中). (2002)

F.Nishio：“南极洲东德龙宁莫德地 H72 冰芯的年度层测定和 1​​64 年记录”《冰川学年鉴》35（出版中）。

西尾文彦: "南極浅層コア(H72、ドーム南)の基本解析-測定方法および装置-"雪氷. 63. 49-63 (2001)

Fumihiko Nishio：“南极浅层核心（H72，Dome South）的基本分析 - 测量方法和设备 -” Snow and Ice 63. 49-63 (2001)。