A mix of weather greeted us today, from calm seas and winds in the morning to much stronger seas and winds in the afternoon. We spent 4 or 5 hours continuing our equipment shakedown. In addition to placing our acoustic equipment in the water, we also made practice runs with the CTD (conductivity, temperature, depth) instruments. These instruments provide valuable information about the environment that the animals are living in and the productivity of that environment. This information gives us hints as to the probability of the presence of animals in a given area or not without actually having to be there, looking or listening.
While obviously a lot of the work and attention on board is outside and in the water, we still have lots of things happening in our MSL (Main Science Lab). All of the acousticians and oceanographers are set up in the Lab and spend endless hours evaluating the information on their computer screens that are coming from the underwater instruments.