Development of an air attenuation model for noise prediction in surface mines and quarries |
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| Authors: | K Pathak S Durucan A Korre |
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| Affiliation: | 1. Department of Mining Engineering , Indian School of Mines , Dhanbad, India;2. T.H. Huxley School of Environment, Earth Sciences and Engineering, Royal School of Mines, Imperial College of Science, Technology and Medicine , London, UK |
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| Abstract: | ABSTRACT Surface mining and quarrying produces a complex noise field. The noise generated by mining operations changes with time and is affected by the changing meteorological conditions in situ. Theoretical research on the attenuation of noise in air has formed the basis for the development of an air attenuation model. The methodology developed by the authors accounts for the prevailing temperature and relative humidity conditions in the area. The model also includes the evaluation of ray path curvature directly from long-term experimental wind velocity and temperature data, or indirectly in terms of the Net Solar Index and the wind velocity. This paper describes the air attenuation model, which was developed as an integral part of an environmental noise prediction system. |
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