Hydrophone calibration
Thursday, September 13, 2007
We woke up to a thick fog bank off Snug Harbor and scrambled eggs prepared by Ashley. We finished up our post-breakfast chores and sat down to voyage planning for the day. Our pager alerts informed us that no killer whales had been spotted, so we decided to calibrate all of the hydrophones. We lowered the hydrophones tied together like a bunch of bananas off the port side, and a speaker off the starboard. Alex, Tim, and Ashley recorded tones at various gains. Todd prepared homemade mayonnaise for an egg salad that Sam and Shannon whipped up for lunch. After lunch and coffees all around, the students began analyzing preliminary data. In the afternoon, Gato Verde headed out of Snug Harbor and Tim hoisted the main for a bit of sail training. We deployed the hydrophones again and recorded a passing steamer and ferry while collecting data on range, latitude, and longitude. After practicing jibes and chicken jibes, we headed north for Stewart Island and secured a mooring buoy in Redi Harbor. After a very refreshing sunset swim, we sat down to a Greek meal of briam cooked by Alex.
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