Draft Guidelines for the Measurement and Assessment of Low-Level Ambient Noise

摘要

This document describes an ambient noise measurement protocol, a detailed methodology for characterizing ambient noise in lowlevel environments such as the National Parks. It presents definitions of terminology useful for understanding the measurement and assessment guidelines. Also included are a general overview, an historical perspective, and a statement of purpose and objective. Specific details of characterizing a study areas ambient noise are outlined, including measurement site selection, instrumentation, and general field measurement procedures. Particular attention is given to the data reduction and analysis methodology, including guidance on assigning actual measured ambient noise to all specific locations within a study area. Proposed field testing of the methodology and subsequent refinement are also discussed. Additionally, specifics on a low-level noise measurement system developed by the Volpe Center Acoustics Facility are included.