Data supplenting “Controls on subglacial rock friction: Experiments with debris in temperate ice”

These data supplement the article “Controls on subglacial rock friction: Experiments with debris in temperate ice” by Anna C. Thompson, Neal R. Iverson, and Lucas K. Zoet. <br>Included are time-series data from the four experiments with debris in ice (.csv files), including records of shear stress, normal stress on the ice ring (i.e., ice pressure), and vertical position. Plots of these data (.tif files) from the four experiments illustrate the measurement periods between adjustments in bed-normal ice velocity and ice pressure, from which the values of Table 1 in the article were calculated. Three additional figures (.tif files) illustrate, respectively, the relationship between contraction rate and bed-normal ice velocity, the setup of the ancillary experiments for measuring clast-bed friction, and the relationship between contact forces and shear forces measured in those experiments.<br><b>Change log</b>: split one figure into two separate figures (schematic + plot), added a new plot, updated text and filenames.<br>

本数据集为Anna C. Thompson、Neal R. Iverson与Lucas K. Zoet所著论文《冰下岩石摩擦控制机制：温带冰中碎屑实验》提供补充数据。
包含4项含冰碎屑实验的时序数据（.csv文件），涵盖剪切应力、冰环法向应力（即冰压）以及垂直位置的记录。4项实验的对应数据绘图（.tif文件）展示了床层法向冰速与冰压调整之间的测量时段，论文表1中的数值即由此计算得出。另有3幅.tif格式配图，分别展示收缩速率与床层法向冰速的关系、测量岩屑-床面摩擦的辅助实验装置，以及该实验中测得的接触力与剪切力的关系。
<b>更新日志</b>：将1幅图拆分为2幅独立图像（示意图+绘图），新增1幅绘图，更新了文本内容与文件名。