A dense accumulation of frazil (or lolly ice); an early stage in the freezing of a body of water. (Also called slush.) The sea surface becomes thick and soupy and sometimes greasy in appearance. Sludg
e depth seldom exceeds one foot.
Sea ice terminology describing snow which is saturated and mixed with water on land, on ice surfaces, or as a thick floating mass in water, after a heavy snowfall.
Snow or firn mixed with an amount of liquid water equaling or exceeding that required to fill the voids; soaked snow. Slush avalanches ('slushflows') can be a significant means of downslope transfer o
f mass, and hence of accelerating ablation by melting because of the increase of temperature with decreasing altitude.
A mudflow-like outburst of water-saturated, i.e., soaked snow (see slush, mfsl), often along a stream course. Commonly occurring after rainfall and/or intense thawing have produced more water than can
drain through the snow. A flowing mixture of snow and water.