Notes on Tidal Inlets on Sandy Shores,

Abstract

Sandy shorelines approach an average equilibrium configuration, in planform and profile, under the influence of the wave climate, the tides and tidal currents, and the local winds acting on the material which forms the shore. The tides and tidal currents vary in a predictable sequence but waves and local winds occur randomly and shorelines exhibit correspondingly random deviations from an average configuration. The most active position of most shorelines is found in and near inlets where strong currents move the material stirred up by wave action. Past studies of the equilibrium configuration of shorelines have suffered from the lack of quantitative data on the wave climate, the average long-term wave exposure, and data on the daily, seasonal, and annual variations in wave intensity and direction. The long-range objective should be to relate the configurations of shorelines and the temporal variations in configuration, to the waves, winds, tides and currents. A shorter range objective is to explain quantitatively the behavior of inlets and adjacent shores. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0726012

Entities

People

  • M. P. O'brien

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Intensity
  • Materials
  • Planform
  • Sequences
  • Shape
  • Tidal Currents

Fields of Study

  • Environmental science

Readers

  • Aerodynamics/Aeronautics.
  • Coastal Oceanography