Using a meteorological-acoustical model for solving environmental noise problems around a harbour
conference paper
Sound propagation is affected by the meteorological situation prescribed by the vertical gradient of wind and temperature. In coastal areas like a harbour these gradients can vary along the sound propagation path, especially at water-land crossings. As a result, the sound propagation in these areas cannot be calculated with standard acoustic models, such as described in ISO 9613-2 or the Harmonoise engineering model, in which these refracting influencing properties are supposed to be constant along the sound propagation path. By using a meso-scale meteorological model these profiles can be estimated in detail. This can be used as input for a sound propagation model like PE. Boundary conditions for the mesoscale model are given by HiRLAM, a weather forecast model used by the Dutch Royal Meteorological Institue (KNMI). In this paper we present two applications of this hybrid meteorological-acoustical model: 1) Propagation of industrial noise in a harbour; 2) Propagation of impulse noise in a wetland area.
TNO Identifier
483569
Source title
Internoise 2008, 37th International Congress and Exposition on Noise Control Engineering, 26-29 October 2008, Shanghai, China
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