Basal Ice Unit Thickness Mapped by the NSF COLDEX MARFA Ice Penetrating Radar

This dataset contains the basal ice unit thickness as measured by the NSF COLDEX MARFA ice-penetrating radar survey, which mainly focuses on the southern flank of Dome A. The "basal ice unit" is hereby defined as the bottom portion of the ice sheet where no clear and traceable englacial reflection is detected by the radar sounder. Raw radar data can be found at: https://doi.org/10.15784/601768. The basal ice unit is mapped using the DecisionSpace Geosciences 10ep software package. This dataset provides three data products:
<br>• Thickness of the basal ice unit
<br>• Thickness of the stratigraphic ice unit above the basal ice unit
<br>• The shape of the basal ice unit boundary, where rapid basal ice unit thinning is observed in the middle of the South Pole Basin.

本数据集收录了由美国国家科学基金会（National Science Foundation, NSF）COLDEX MARFA冰穿透雷达勘测获取的基底冰单元（basal ice unit）厚度数据，该勘测主要聚焦于冰穹A（Dome A）的南翼。此处将“基底冰单元”定义为冰盖底部未被雷达测深仪探测到清晰可追踪冰内反射波的区域。原始雷达数据可通过以下链接获取：https://doi.org/10.15784/601768。基底冰单元的制图工作依托DecisionSpace Geosciences 10ep软件包完成。本数据集共提供三类数据产品：
• 基底冰单元厚度
• 基底冰单元上方的层序冰单元（stratigraphic ice unit）厚度
• 基底冰单元边界形态——研究团队在南极盆地（South Pole Basin）中部观测到基底冰单元快速减薄的特征。