Basic analytical procedure for Antarctic shallow ice cores

在这项研究中，我们完成了对南极冰盖沿海地区h231（1980年获得，长90m）、MD 364（2001年获得，长80m）和Dome Fuji南部（1997年获得，长56m）岩心的基本分析。通过基础分析，进行了地层测量、密度测量、深度测量、电导率测量、氧同位素比值测量、化学分析和放射性同位素（氚）分析。此外，我们还进行了化学主要成分的高时间分辨率分析，作为对h72岩心的研究分析。在h72岩心中，固体电导率的季节变化是由一个程度的误差决定的，除了26年来的平均地表质量平衡外，还将地层结构结合在一起，连续提取岩心中离子浓度的季节变化。过去几百年的气候和环境变化成为可能。并且可以通过高时间分辨率逐年重建变化或季节变化。

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.