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sastrugienUK
sas·tru·ga (să-stro͞o′gə, săs′trə-, sä′strə-) also zas·tru·ga (ză-stro͞o′gə, zä-)n. pl. sas·tru·gi (-gē) also zas·tru·gi A long wavelike ridge of snow, formed by the wind and found on the polar plains.
[Russian dialectal zastruga : za, beyond + struga, deep place into which one may fall; see sreu- in Indo-European roots.]SastrugienUK
Sastrugi (also zastrugi). (1) Stationary narrow and crusted ridges that run in the direction of the wind; formed by wind erosion of snowbanks. Sastrugi may range in length from several centimeters to several meters (sometimes up to 1.3–1.5 m); they have steep windward slopes and gradual leeward slopes. (2) Accumulations of fluvial sediment in a river bed in the form of a ridge near the shore; as the ridges grow in width, they become sandbars. |