Abstract
This paper summarizes the results of the first investigation into the
effect of particle-laden plumes on glacier melting using laboratory
experiments. We find that the melt rate, when the ice is exposed to a
particle-laden plume, can be increased by up to 60% compared to when
the ice is exposed to an equivalent plume without particles. The
increased melt rate is linked to increased entrainment into the
turbulent plume, demonstrating a link between turbulent entrainment and
the melt rate of the ice face. We use this link to propose a
modification to the commonly used ‘three-equation model’ that explicitly
accounts for variations in entrainment rates.