November 2004 (PDF 11.6 MB) - Barrick Gold Corporation
November 2004 (PDF 11.6 MB) - Barrick Gold Corporation
November 2004 (PDF 11.6 MB) - Barrick Gold Corporation
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Figure 5.1.Assessing temperature inversionsStep 1: Do initial screening testDetermines whether inversion effects need to be consideredAre inversion effects likely tosignificantly affect noiselevels?NOYESStep 2: Determine % occurrence of inversionsUse existing data (Bureau of Meteorology) or on-sitemeasurementsIs the occurrence ofinversions significant, i.e.> 30% of nights in winter?NONo furtherassessment isrequiredYESSTEP 3: Decide on inversion parameters to useUse either default inversion values specified by the policyor actual measured valuesSTEP 4: Compare predicted level with project-specificnoise levelsThe predicted noise levels due to the inversion conditionsare compared with the project-specific noise levels. Wherethey exceed the project-specific noise levels, noise impactsare likely.NSW industrial noise policy32