Jülich, 10 January 2019 – Jülich physicist Bo Persson has presented a theory on the sliding of glacier ice over rocky ground. Among other things, it describes the influence that water-filled cavities between ice and subsurface have on the sliding speed. Glaciologists could use Persson’s theory to improve the computer models they use to predict the flow rate and melting of glaciers. The work of the Jülich scientist has been published in the Journal of Chemical Physics.