ice crystals. Counts of the number of crystals in a few snowflakes have 

 shown that larger flakes may consist of as many as 100 crystals. 



SNOWBLINK: (V.B.) — A white glare on the underside of extensive 

 cloud areas created by light reflected from snow-covered surfaces. See 

 blink, sky map. (Fig. 15.) 



SNOW CRUST: (II.B.)— The frozen surface of a snow cover. 



SNOWDRIFT: (V.B.)— Snow lodged in the lee of surface irregularities 

 or heaped by the peculiarities of the wind itself. 



SNOWDRIFT ICE: (II.A.l.e.)— Permanent and semi-permanent masses 

 of ice or neve formed by the accumulation of drifted snow in the 

 lee of projections or in depressions on the surface. Snowdrift ice 

 is the initial ice formation from which cirque ice seems to originate. 

 See land ice. 



SNOW ICE: (I.A.3.b.) — Ice crust that has been formed in a con- 

 siderable part from falling or drifting snow. 



SNOW SLUDGE: (I.A.3.b.)— Sludge formed from snow. 



SNOW SLUSH: (I.A.3.a.)— Slush formed from snow that has fallen 

 into water at a temperature below that of the snow. 



SPRING SLUDGE: (I.A.3.f.)— Rotten ice. 



SPUR: (I.C.2.)— Ram. 



STAGNANT GLACIER: (II.A.2.)— An inactive glacier. 



STAMUKHA (pi. STAMUKHI) : (I.B.l.c.)— A single fragment of ice 

 stranded on a shoal. See fast ice. (Figs. 57-60.) 



STEAM FOG: (V.B.)— Frost smoke. 



STORIS: (I.A.4.f.) — A regional term applied to the remnants of the 

 thickest, fused pressure ridges of polar ice drifting along the coast of 

 Greenland from the Arctic Ocean. See floeberg. 



STORM ICE FOOT: (I.B.l.a.)— An ice foot created by freezing spray 



^ (Fig. 54). 



STRAIN CRACK: (I.C.l.a.) — A crack in sea ice caused by stresses de- 

 forming the ice beyond its elastic limit. See torsion crack. 



STRANDED FLOE ICE FOOT: (I.B.l.a.)— Stranded ice foot. 



STRANDED ICE: (LB.)— Ice left or forced aground. Cf. shore ice. 



STRANDED ICE FOOT: (I.B.l.a.)— An ice foot formed from floes 

 and/or small icebergs stranded along a shore line. It may be built up- 

 ward by breakers and wind driven spray. 



SUBLIMATION: (V.B.)— The transition of the solid phase of certain 

 substances into the gaseous and vice versa without passing through the 

 usual liquid phase. Water possesses this property; thus, ice can change 

 to water vapor or water vapor to ice. Strictly speaking, the word 

 sublimation means the evaporation of ice and its immediate recon- 

 densation elsewhere, but it is also used to denote the single process of the 

 condensation of water vapor into ice. 



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