REPRESENTATION OF NEARSHORE DISTORTION OF TSUNAMIS BY BILINEAR OPERATORS,

Abstract

Tsunamis exhibit nonlinear behavior at islands and continental coastlines. The transformation from deep to shallow water has been approximated by the first three terms of the multidimensional Taylor expansion, the constant, linear, and bilinear terms. The transformation operator, or emulator, has been determined from marigrams at Midway and Hilo for a single tsunami, letting Midway approximate the deep-water input to Hilo. It is then applied to the Midway record from the same tsunami and from a second tsunami. The outputs, or emulations, are compared to Hilo records for the respective tsunamis. The difference between them is summarized by the RMS residue. The emulators determined from different tsunamis and different lag configurations are compared. The results indicate the simple 'input-output' hypothesis is not justified in these cases.

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1967
Accession Number
AD0652814

Entities

People

  • Gordon W. Groves
  • Robert R. Harvey

Tags

DTIC Thesaurus Topics

  • Alkalies
  • Bases (Chemistry)
  • Chemical Compounds
  • Deep Water
  • Distortion
  • Eccentricity
  • Fluids
  • Hydrogen Compounds
  • Shallow Water
  • Shape
  • Water

Readers

  • Approximation Theory.
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Computer Engineering