Guide to Geologic Hazards in Alaska - Glossary

Strudel scour
Drainage of large volumes of fresh water through sea ice at holes and cracks (strudel) causes scour depressions in the sea floor below. In Alaska these scour depressions have been observed to be more than 4 m deep and as much as 20 across. (Reimnitz, Erk and others, 1974)