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Journals 2004/2005

Leesa Wingo
South Anchorage High School, Anchorage Alaska

"Physical-biological coupling at frontal
zones in Glacier Bay National Park"

Vessel Sigma T
July 12-30, 2004
Journal Index:
July 12 - 13 - 14 - 15 - 16 - 17 - 18

      19 - 20 - 21 - 22 - 23 - 24/25

      26 - 27 - 28 - 29 - 30

July 14, 2004
First day at sea!

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.

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Luckily, the line bucket was good for other activities, such as afternoon tea!

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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.

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The Vessel Sigma T
was named for a measurement of density. Mr. T is the mascot, and rides on the dash and agrees with Captain Lisa in good weather. It barely fits three people in its cabin with all the scientific equipment, emergency supplies, and, of course, food.

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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.

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