Measurements of Ocean Currents Across the Continental Margin Off Point Sur, California, During March 1989

Measurements of Ocean Currents Across the Continental Margin Off Point Sur, California, During March 1989
Author: Anthony J. Negron
Publisher:
Total Pages: 100
Release: 1993
Genre: Ocean currents
ISBN:

Mean currents and density were measured off Point Sur, California in March 1989 using Pegasus and CTD instruments. Velocity, temperature, salinity, and density fields are examined to discern the structure of the California and Davidson currents. Velocities measured by Pegasus are compared to flow fields derived from geostrophy. The Davidson Current flows poleward at the surface in its winter configuration despite northerly winds and coastal upwelling which normally drive the flow subsurface in the summer months.

Observations and Modeling of the Internal Tide in a Submarine Canyon

Observations and Modeling of the Internal Tide in a Submarine Canyon
Author: Emil T. Petruncio
Publisher:
Total Pages: 210
Release: 1996
Genre: Science
ISBN:

Shipboard ADCP and CTD measurements were conducted in Monterey Submarine Canyon in April and October 1994 to determine the propagation characteristics and energy levels of the semidiurnal internal tide. The measurements reveal a bottom intensified internal tide propagating energy up canyon. The region of strongest motion is in a beam 150-200 m thick, centered approximately 150 m above the Canyon floor. Along canyon baroclinic M2 currents are typically 15-20 cm/s, an order of magnitude larger than the estimated barotropic tidal currents. In April 1994, the internal tidal beam is well described by a progressive wave, while in October 1994, the signal is standing along and perpendicular to the beam. The Princeton Ocean Model was used to study the generation and propagation of semidiurnal internal tides in submarine canyons and to investigate their sensitivity to canyon shape.

Collected Reprints

Collected Reprints
Author: Southwest Fisheries Center (U.S.)
Publisher:
Total Pages: 674
Release: 1987
Genre: Fisheries
ISBN: