Accession Number:

ADA612144

Title:

SeaSoar and Doppler Sonar Spatial Survey of Internal Tide Generation, Surface Boundary Layer Dynamics, and Mixing

Descriptive Note:

Annual rept.

Corporate Author:

CALIFORNIA UNIV REGENTS LA JOLLA CA SCRIPPS INST OF OCEANOGRAPHY

Personal Author(s):

Report Date:

2006-09-30

Pagination or Media Count:

10.0

Abstract:

This research is a component of the Assessing the Effectiveness of Submesoscale Ocean Parameterizations AESOP Departmental Research Initiative. Its overall goal is to assess parameterizations in regional models of processes with lateral scales of 100 m-10 km. Our SeaSoar survey will contribute to an improved understanding of two distinct fields, surface boundary layer dynamics and internal tides. Our objectives cover three themes surface boundary layer dynamics, the decay of submesoscale activity away from the coast, and internal tide generation and dissipation. A coordinated dataset of sufficient resolution and extent will help improve parameterizations for submesoscale processes. Modelling work shows submesoscale fronts and eddies decay away from the coastal upwelling zone, but further observations are needed. Internal tide-driven mixing may substantially increase mixing in the water column away from boundaries and presently tides are not included in most regional models.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustic Detection and Detectors
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE