Beam Reach

Calibration with Marla Holt

Jones Island to Garrison Bay

We left Jones Island this morning and sailed through Speiden channel.  Because it was calm conditions we practiced doing actual jibes. Around one o’clock we picked up Val and Marla Holt at Snug Harbor. Marla will be on until Wednesday teaching us what she knows about sound and masking in the killer whales. We also used Marla’s hydrophone in addition to all of our own to perform another calibration exercise playing pure tones out of the underwater speaker. While we had the hydrophones out Dominique also managed to record a passing ship and Laura managed to record light bulbs breaking underwater. In the evening we started analyzing the calibration data that was collected in the afternoon.