Table 1 Number of transits, mean (± standard deviation) speed over ground (SOG), broadband (5–1000 Hz) received level (RL), source level (SL), and sound exposure level (SEL) for container ships, bulkers, and vehicles carriers. The slope (regression coefficient) of the least-squares regression is shown for SOG vs. SL and SOG vs. SEL (SOG vs. SL|SOG vs. SEL) and the coefficient of determination (r², SOG vs. SL|SOG vs. SEL) is displayed for three vessel types and their total.

From: Underwater noise mitigation in the Santa Barbara Channel through incentive-based vessel speed reduction