First-order analyses of wind and current time series obtained from a Totem buoy off the Oregon coast during 1970 are presented. In addition, winds at Totem are compared with winds recorded simultaneously at Newport, Oregon.
A three component drag probe has been built, calibrated, and
used to measure velocities beneath deep water ocean waves and
turbulence in a tidal channel. Simple variable inductance devices
which may be submerged in water were used as displacement transducers
and the associated electronics provided voltage outputs which
were proportional...
Currents between the surface and 1000 m depth off the Oregon
coast have been measured by tracking parachute drogues. The study
was initiated by Mr. Bruce Wyatt in January 1962, using the R/V
ACONA. Dr. Paul M. Maughan participated in the earlier half of the
work and wrote his master's...
Longshore currents are frequently occurring phenomena capable of transporting beach sediments, causing accretion and erosion of the shoreline. Forcing mechanisms are understood and well modeled for cases of alongshore homogeneous and monotonic bathymetry, yet the extension of these models to complex and irregular bathymetry sometimes fails. To test and improve...
The circular wave basin provides a means of physically modeling the nearshore
without the typical problems associated with end walls. Three different coastal
processes were examined to demonstrate the use of a spiral wavemaker in a circular
wave basin. These were longshore currents, shear waves, and groin circulation. A
beach...
This thesis demonstrates that at low frequencies (periods longer
than 2.5 days) local currents off the coast of Oregon are closely
related to the wind. Wind and current observations made during
August and September 1969 are described and compared to demonstrate
that a relationship exists; the physics of the interaction...
A summary of moored instrument measurements over the continental
shelf of Peru is presented. Measurements of variables were made in an
upwelling zone between Pisco and San Juan, from 28 March to 9 April, 1969.
Time series of temperature and horizontal current and wind velocities were
obtained at several depths...
The oceanic phenomenon of upwelling along the Oregon coast is
examined. Upwelling in both the open ocean and coastal regions is
discussed. An idealized model is used, envisaging the ocean off
Oregon to consist of homogeneous surface and deep layers separated
by a pycnocline. The equations of motion are solved...