The Influence of Buoyancy and Stratification on Circulation, Mixing, and Bottom Stress in Complex Channel/Tidal Flat Systems: A Process Oriented and Realistic Numerical Modeling Study

Abstract

This effort represents a step towards understanding the dynamics that drive the circulation in estuarine, tidal flat and inner-continental-shelf coastal environments with complex bathymetry and strong forcing by tides, river flow, wind and waves and determining how these circulation patterns and their variability control the pathways of transport of waterborne materials - including sediments, nutrients and anthropogenic materials - through these regions and into the adjacent coastal ocean. Specifically, we aim to develop realistic, high-resolution numerical simulations of such environments that resolve the bathymetric variability and are capable of simulating small-scale coherent structures (for example, flow separation, eddies, and secondary flows) that regulate dispersion and transport of materials within these systems. Essential to this effort is validating such models through skill assessment via statistical comparisons between model output and field measurements over a broad range of forcing conditions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2009
Accession Number
ADA531842

Entities

People

  • James Lerczak

Organizations

  • Oregon State University

Tags

DTIC Thesaurus Topics

  • Atmospheric Sciences
  • Buoyancy
  • Continental Shelves
  • Dynamics
  • Earth Sciences
  • Environment
  • Flow
  • Flow Separation
  • High Resolution
  • Materials
  • Secondary Flow
  • Sedimentation
  • Sediments
  • Simulations
  • Stratification
  • Three Dimensional
  • Transport Ships

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography