| Popis: |
Shipping noise from high‐density areas is believed to migrate down the coastal shelf and propagate to long ranges via the deep sound channel, resulting in an increase in noise level at low angles for submerged receivers. A propagation calculation, which is applicable when a high degree of cycle mixing results in nearly random summation of path effects, is introduced and used to predict low‐frequency (1–300 Hz), long range shipping noise. The vertical directionality of the noise is computed by fitting a source distribution within the deep sound channel by the method of least squares. Comparisons to a limited number of low‐frequency measured data sets are presented. |
