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Velocity and bottom-stress measurements in the bottom boundary layer, outer Norton Sound, Alaska.

January 1, 1982

We have used long-term measurements of near-bottom velocities at four heights above the sea floor in Norton Sound, Alaska, to compute hourly values of shear velocity u., roughness and bottom-drag coefficient. Maximum sediment resuspension and transport, predicted for periods when the computed value of u. exceeds a critical level, occur during peak tidal currents associated with spring tides. The fortnightly variation in u. is correlated with a distinct nepheloid layer that intensifies and thickens during spring tides and diminishes and thins during neap tides. The passage of a storm near the end of the experiment caused significantly higher u. values than those found during fair weather.-from Authros

Publication Year 1982
Title Velocity and bottom-stress measurements in the bottom boundary layer, outer Norton Sound, Alaska.
Authors D. A. Cacchione, D. E. Drake, P. Wiberg
Publication Type Article
Publication Subtype Journal Article
Series Title Geologie en Mijnbouw
Index ID 70011704
Record Source USGS Publications Warehouse