Rime
(Section 3.2.1.4.5)Definition: Rime: Deposit of ice generally formed by the freezing of supercooled fog or cloud droplets on objects with surface temperatures below or slightly above 0 °C.
There are three sorts of rime: soft rime, hard rime and clear ice. The processes resulting in the formation of the different kinds of rime may occur nearly simultaneously, may occur consecutively during a longer period or may even alternate. Therefore, in some circumstances, very heterogeneous “overall deposits” can be observed, with transitional states within the deposit.