Processes Controlling Transfer of Fine-Grained Sediment Within and Between Channels and Flats on Intertidal Flats

Abstract

A long-term goal of our sediment transport and accumulation investigations is to link sedimenttransport processes to the formation and preservation of event beds in sediment deposits. The general aim of this project is to investigate how forcing processes affect the sediment-transport dynamics that act to import or export fine-grained sediment in intertidal regions. We strive to understand how the delicate balance of ebb and flood sediment fluxes is maintained to create a stable (or unstable) tidal flat complex that is characterized by tidal channels and variable seabed stability. Our goal is to answer the question: What influence do tidal (semidiurnal, fortnightly), riverine and other seasonal (winds/waves, precipitation temperature, and biological) processes have on the transfer of sediment between tidal-flat environments, and how is this manifested in terms of channel and flat deposits?

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2011
Accession Number
ADA557248

Entities

People

  • A. S. Ogston

Organizations

  • University of Washington

Tags

Communities of Interest

  • C4I
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Coastal Management
  • Coastal Regions
  • Continental Shelves
  • Dynamics
  • Elevation
  • Environment
  • Floods
  • Geometry
  • Grain Size
  • High Resolution
  • Landforms
  • Precipitation
  • Sedimentation
  • Sediments
  • Stresses
  • Suspended Sediments
  • Three Dimensional

Readers

  • Coastal Oceanography