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