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Details of Grant 

EPSRC Reference: GR/M71459/01
Title: A FUNDAMENTAL STUDY OF METEOROLOGICAL CONDITIONS & THEIR INFLUENCES ON OUTDOOR SOUND PROPAGATION
Principal Investigator: Lam, Professor YW
Other Investigators:
Collier, Professor C
Researcher Co-Investigators:
Project Partners:
Department: Research Inst for Advanced Engineering
Organisation: University of Salford
Scheme: Standard Research (Pre-FEC)
Starts: 01 August 1999 Ends: 31 January 2003 Value (£): 258,449
EPSRC Research Topic Classifications:
Urban & Land Management
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors Environment
Related Grants:
Panel History:  
Summary on Grant Application Form
How sound propagates outdoors is an important consideration in many environmental noise assessments. Among all the factors that affect the propagation, the meteorological influence can enhance as well as attenuate the propagation by a considerable amount, and yet it is the factor that can be modelled least accurately. Advanced numerical models have been developed but they require detailed meteorological data that are generally not available. The lack of good quality meteorological data makes it impossible to rigorously test the accuracy of prediction models in real life. In practical applications the variability in the meteorological parameters raises questions on how and where to measure meteorological data. This proposal describes a fundamental research to answer these questions: I) how significant is the effect of meteorological variation over the propagation path; ii) how accurate are current computer models; and iii) how best in practice should the meteorological conditions be monitored. A series of field trials will be conducted. The latest Doppler laser radar technology will be used to enable simultaneous detailed meteorological measurements. A new computer model based on advanced Parabolic Equation and Boundary Element Method techniques will be developed for sound propagation predictions that can allow for range-dependent meteorological conditions.
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Organisation Website: http://www.salford.ac.uk