Fig. 6. Drawing illustrating the geometry of the location of the sound projector relative to the whale’s ears and the receiving hydrophone. Note that the projector was 2 m below the platform (HTP), 2.24 m from the whale’s ears and 2.24 m from the receiving hydrophone. The receiving hydrophone was also 2 m from the whale’s blowhole. All values reported here are received levels at the location of the receiving hydrophone or the whale’s ears.