July 14, 2004
Today, I learned how to take CTD samples in Lower Bay. We started at the bottom of the bay, and sampled towards mid-bay. (I felt like I was I mostly in the way. It felt like our 25 ft. skiff just became a 10 ft. canoe.) I did pull 3 lines 40 meters, 60 meters and 70 meters... the CTD returns from its descent and one coils the line neatly in a counter-clockwise design in a large tub. Erica was a pro, I was pathetic my first day. I didn't know to bend my knees and to suck in my stomach, but I soon learned the tricks of CTD retrieval.
Luckily, the line bucket was good for other activities, such as afternoon tea!
I watched how things were done on board. Fueling took a long time because the gas system on our boat was at the bottom of the hull, and the gas line twisted and turned up to the entrance. Hence the gas belched and burped. Lisa and Erica had to be ready to catch the burps with fuel absorbent "diapers" so the gasoline wouldn't flow into the ocean. If they didn't pay close attention, the gas would spray into their faces, too. A vent was installed, but id didn't help. It took about thirty minutes to fuel up.
The Vessel Sigma T
At the end of the day on the water, the real fun begins. The data is downloaded in the office into the computer. Two CTD samples didn't work, so Erica adjusted the on-off switch so it worked better for the next day. I walked back to housing, which only took10 short minutes, then I cooked my dinner and fell into bed.
Return to Journals Index