ABSTRACT
Chapter 6 discussed aspects of ambient-noise measurements in the ocean. In particular, Figure 6.2 portrayed the average deep-sea ambient-noise spectra as originating from shipping traffic at low frequencies (∼5Hz to ∼200Hz) and from surface weather at high frequencies (∼200Hz to ∼50kHz). In the range 50-500Hz, both mechanisms (shipping and weather) contribute to the observed noise levels. The significance of these dual mechanisms has influenced the course of noise model developments.
