Amundsen-Ross sea ice reconstruction based on data from the Ferrigno ice core (F10), Bryan Coast, West Antarctica

This dataset provides a 308 year record of methansulphonic acid (MSA) from coastal West Antarctica, representing sea ice conditions in the Amundsen-Ross Sea. Annual average MSA has been calculated from the 136 m Ferrigno ice core (F10), drilled on the Bryan Coast in Ellsworth Land, West Antarctica during the austral summer 2010/11. The sea ice extent is based on geometric mean regression of MSA flux with satellite sea ice extent from 146 degrees west. The record was measured using a Dionex ICS2500 anion system at 5 cm resolution, corresponding to approximately 14 samples a year.

本数据集提供了源自南极西部沿海区域、时长308年的甲磺酸（methansulphonic acid, MSA）记录，该记录可反映阿蒙森-罗斯海的海冰状况。年均MSA数据通过2010/11年南极夏季期间，在南极西部埃尔斯沃思地布莱恩海岸钻取的136米费里尼奥冰芯（F10）计算得到。海冰范围的推算基于MSA通量与西经146度处卫星观测海冰范围的几何平均回归分析。该记录采用戴安（Dionex）ICS2500阴离子色谱系统进行测定，分辨率为5厘米，对应每年约14个采样样本。