Accession Number : ADA191234

Title :   An Initial Ambient Noise Model Evaluation Methodology,

Corporate Author : PLANNING SYSTEMS INC MCLEAN VA

Personal Author(s) : Barnes, Allen E ; Grainger, Gary R

PDF Url : ADA191234

Report Date : 15 Jan 1981

Pagination or Media Count : 191

Abstract : This report addresses several considerations which will impact ambient noise evaluation, and provides an Initial Model Evaluation (IME) methodology for omni and horizontally directional ambient noise models. Inasmuch as ambient noise model evaluation for vertically directional models or temporal noise models involves both the criteria given in the IME and a number of other considerations unique to the models assumptions, it was considered better to address just the most widely used types (i.e. omni and horizontal directionality noise models) in this effort. Furthermore, consideration is restricted to the two major mechanisms of low-frequency noise: shipping and wind. Noise due to seismic, biologic and other meteorological phenomena is assumed to be minor or negligible at the frequencies under consideration.

Descriptors :   *AMBIENT NOISE, *UNDERWATER ACOUSTICS, DIRECTIONAL, HORIZONTAL ORIENTATION, IMPACT, OMNIDIRECTIONAL, TEST AND EVALUATION, VERTICAL ORIENTATION, MATHEMATICAL MODELS, WIND, AIR WATER INTERACTIONS, SHIP NOISE, LOW FREQUENCIES

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE