Frequency-dependent propagation characteristics in and around forests

Sound propagation in and around forests is highly influenced by the unique vegetative environment. The array of scattering objects represented can be parametrized by parameters such as tree height and diameter, spatial arrangement, and areal density. The array can be in a lattice or random configuration, depending on whether the trees were intentionally planted or naturally occurring. The trees themselves can be of uniform age and size or a mixture of sizes and types. Using data from three different study areas, this presentation will explore correlations between the physical structure of the forest and frequency-dependent attenuation of impulsive sounds.