Abstract
Sounds created by the interaction of wind and foliage (as well as sounds of running water and animal populations) are the principal sources of the ambient noise environments in many uninhabited areas. Since these indigenous sources create much of the masking energy in outdoor recreational settings, which limits the audibility of noise intrusions, characterizing their influence is an important step in predicting and managing natural quiet. Cross-correlational analyses of time series of wind speed and A-weighted sound-pressure observations in a wilderness environment indicate that over half of the variance in ambient sound levels can be predicted from knowledge of wind speed. [Research sponsored under National Park Service Contract CX-2000-9-0026.]
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