Methane Concentration and Chronology from the WAIS Divide Ice Core (WDC05A)

This data set provides a high-precision and high-resolution record of atmospheric methane from the West Antarctic Ice Sheet (WAIS) Divide ice core WDC05A, spanning the years 1000 to 1800 C.E. The data include methane (CH4) concentration measurements and ice age chronology. Methane concentration data include mean sample depth, gas age, mean concentration, and concentrations from individual measurements, at a temporal resolution of approximately nine years. Ice chronology data include depth and ice age. Data are available via FTP, in Microsoft Excel (.xlsx) format.本数据集提供了源自西南极冰盖（West Antarctic Ice Sheet，WAIS）迪瓦冰芯WDC05A的高精度高分辨率大气甲烷记录，时间跨度为公元1000年至1800年。数据集包含甲烷（CH₄）浓度测量数据与冰年代学数据。其中甲烷浓度数据涵盖平均样品深度、气体年代、平均浓度以及单次测量浓度值，时间分辨率约为9年。冰年代学数据包含深度与冰龄。 本数据集可通过FTP获取，格式为Microsoft Excel（.xlsx）文件。