I woke up today at 3:45 in the morning for my watch, which was amazing. It was really cool to see the ROPOS operators at work, and how they all work together so well. Yesterday, I learned the basics of how to use a Gas Chromatograph, which tells you the concentration of each gas in a sample. That took about 2 hours. The GC is a really useful machine, but it has a lot of intricacies that it seems will take a while to fully understand. Today we are doing a CTD cast, and some more dives. The weather has been incredible so far, clear skies and calm seas, and hopefully it will stay that way!