Title: Tsunami interaction with coastlines and elevation predictions
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Permanent Link: http://ufdc.ufl.edu/UF00098912/00001
 Material Information
Title: Tsunami interaction with coastlines and elevation predictions
Physical Description: ix, 105 leaves : ill., graphs, maps ; 28 cm.
Language: English
Creator: Houston, James R ( James Robert ), 1947- ( Dissertant )
Millsaps, Knox ( Thesis advisor )
Hammack, Joseph L. ( Thesis advisor )
Sheppard, D. M. ( Reviewer )
Eisenberg, M. A. ( Reviewer )
Thomas, Michael E. ( Reviewer )
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 1978
Copyright Date: 1978
 Subjects
Subjects / Keywords: Electrical Engineering thesis Ph. D   ( local )
Tsunamis -- Mathematical models   ( lcsh )
Dissertations, Academic -- Electrical Engineering -- UF   ( local )
Genre: bibliography   ( marcgt )
non-fiction   ( marcgt )
 Notes
Abstract: The development is described of two numerical models that accurately simulate the propagation of tsunamis to nearshore regions and the interaction of tsunamis with coastlines. One of these models is a finite element model which uses a telescoping numerical grid to cover a section of the Pacific Ocean, including all eight islands of the Hawaiian Islands. The second model is a finite difference scheme that uses four rectilinear grids to cover most of the west coast of the continental United States. The finite element model solves linear and dissipationless long-wave equations. Such equations govern nearshore propagation in the Hawaiian Islands since the short continental shelf of the islands limits the time available for nonlinearities and dissipation to cause significant effects. The finite difference model solves nonlinear long-wave equations that include bottom stress terms which are important for the long continental shelf of the west coast of the United States. Both models are verified by hindcasting actual historical tsunamis and comparing the numerical model calculations with tide-gage recordings. A frequency of occurrence analysis of tsunami elevations at the shoreline in the Hawaiian Islands is described. This analysis is based upon local historical data with the finite element model used to interpolate between historical data recorded during the period of accurate survey measurements since 1946. Historical data recorded at Hilo, Hawaii, and dating to 1337 is used in conduction with data recorded since 1946 in Hilo and throughout the Hawaiian Islands to reconstruct elevations at locations in the islands lacking data prior to 1946. Frequency of occurrence curves are determined for the entire coastline of the Hawaiian Islands using these reconstructed elevations. Since most of the west coast of the United States lacks local data of tsunami activity, a frequency of occurrence analysis of tsunami elevations is based upon historical data of tsunami occurrence in tsunamigenic regions in addition to numerical model calculations. A generation and deep-ocean propagation numerical model is used to propagate tsunamis with varying intensities from locations throughout the Aleutian-Alaskan and Peru-Chile regions to a water depth of 500 meters off the west coast. The nearshore finite difference model propagates these tsunamis from the 500 meter depth to shore. The frequency of occurrence of combined tsunami and astronomical tide elevations is determined by an analysis involving the numerical superposition of tsunamis and local tides.
Statement of Responsibility: by James Robert Houston.
Thesis: Thesis--University of Florida.
Bibliography: Bibliography: leaves 99-104.
General Note: Typescript.
General Note: Vita.
 Record Information
Bibliographic ID: UF00098912
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: alephbibnum - 000085250
oclc - 05313024
notis - AAK0598

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