In situ ice deformation from borehole inclinometry measurements in Western Greenland, 2015-16

In situ measurements of ice deformation advance understanding of ice dynamics on the Greenland ice sheet by revealing rheological characteristics of the ice column, providing critical targets for numerical ice sheet flow modeling, and quantifying rates of basal motion by partitioning deformational flow from measured surface velocity. Here, we present measurements of ice tilt in two orthogonal directions and azimuth through a vertical column extending from the ice surface to the bed at a site in western Greenland.