Simulation of acoustic multipath arrival structure in the Middle Atlantic Bight
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Authors
Kaemmerer, Glen E.
Subjects
Advisors
Miller, James H.
Chiu, Ching-Sang
Smith, Kevin B.
Date of Issue
1995-06
Date
June 1995
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
In support of the Mid-Atlantic Bight Field Study process studies to be conducted in July 1996 and February 1997, a feasibility study and simulation of the acoustic multipath arrival structure was conducted. The feasibility study consisted of a literature search of oceanographic, geophysical and climatological data to create an accurate model of the Middle Atlantic Bight. This model was used to predict transmission losses and signal-to-noise ratios expected during the field study. Simulations were conducted by tracing acoustic rays from a 400 Hz tomographic source to a vertical receiver array over a range of 45 kilometers across the continental shelf. Simulations were performed using the NOAA Hamiltonian Raytracing Program for the Ocean (HARPO) with the modeled ocean as input. Optimal placement of the experiment's components were determined. Ray path and arrival structure were examined through the construction of eigenrays and analysis of arrival depths, times, angles amplitudes. An analysis of the resolvability of individual rays utilizing arrival times and a combination of arrival times and angles was conducted to evaluate the feasibility of the tomography experiment in the Middle Atlantic Bight.
Type
Thesis
Description
Series/Report No
Department
Applied Physics
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
68 p.
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.