Radar internal layer stratigraphy in the Dome Fuji region, Antarctica@en

Here, we present internal reflection horizons (IRHs) picked in radargrams in the Dome Fuji region, Antarctica based on 22 radar profiles collected with the airborne radio-echo sounding (RES) system of the AWI mounted on its Basler BT-67 aircraft during the 2016/17 Antarctic season. 6 or 7 IRHs are traced in each radargram. The IRHs are then conneced to the Dome Fuji ice core and used to transfer the age-depth scale from the ice core to the large Dome Fuji region. The age-depth information of the IRHs are then input to a 1D ice flow model to recostruct the age field in the lower part of ice, and to evaluate basal thermal state.本数据集提供了南极富士穹顶（Dome Fuji）区域雷达影像中拾取的内部反射层（internal reflection horizons, IRHs），这些反射层基于2016/2017年南极科考季期间，搭载于巴斯勒BT-67（Basler BT-67）型飞机上的阿尔弗雷德·魏格纳研究所（AWI）机载无线电回声测深（airborne radio-echo sounding, RES）系统采集的22条雷达剖面解译得到。每份雷达影像中均可追踪到6至7个内部反射层。随后将这些内部反射层与富士穹顶冰芯进行关联，并用于将冰芯的年龄-深度标尺拓展至整个富士穹顶区域。进而将这些内部反射层的年龄-深度信息输入一维冰流模型（1D ice flow model），以重建冰体下部的年龄场，并评估冰盖底部热状态。