Data supporting “Controls on subglacial rock friction: Experiments with debris in temperate ice”
These data support the paper “Controls on subglacial rock friction: Experiments with debris in temperate ice” by Anna C. Thompson, Neal R. Iverson, and Lucas K. Zoet. Included are the raw data from four experiments with debris-laden ice rings in the form of .csv files, including continuous measurements of shear stress, normal stress, and vertical position. Time series (.tif files) from the four experiments illustrate measurement periods between adjustments, from which we calculated the values found in Table 1 in the main document. Finally, there are two supplementary figures that are .tif files. One illustrates the calibration between contraction rate, measured continuously by a linear variable displacement transformer (LVDT), and bed-normal ice velocity, calculated from bead movement recorded by video cameras. The other illustrates the setup of a supplementary experiment to measure the friction coefficient between clasts and the rock bed.