Light and Heat in Lakes and Reservoirs - Hydro-Environmental Analysis: Freshwater Environments - page 346

Ice may melt both at its bottom, due to increased water temperatures and at its surface, due to
increased air temperatures. The dissipation of the ice cover occurs not only by direct melting at the
top and bottom of the ice but also by a phenomenon that Ashton (1982) refers to as deterioration.
Once the ice cover warms to near the melting point, its mechanical integrity is lost by a process
called rotting or candling. Rotting results from melting at the ice grain boundaries. This rotting or
candling makes the ice more susceptible to break up by wind and currents.
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