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Current position of the SSV Corwith Cramer. Click on the vessel to view position history. Use the tools, top right, to change the map style or view data layers.

SEA Currents: SSV Corwith Cramer


Feb

02

A Sweet Day on the Corwith Cramer

Lisa Gilbert, Chief Scientist, Williams-Mystic
SEA Semester

Above: Happy Birthday brownies. Below: B watch with rainbow hands after deploying Light Attenuation Spheroids.

Ship's Log

Position
18° 31’N x 065° 29’W

Location
28 nautical miles east of San Juan

Good afternoon from the SSV Corwith Cramer.  We are excited to be celebrating Sarah P's birthday today!  Sarah (UConn) and the rest of B watch had breakfast at 0620 this morning.  What a treat: Assistant Steward Ger made scrumptious cinnamon rolls!

After breakfast, the watch came up on deck to begin their science Super Station.  Here the water is relatively shallow (360 m or 1180 ft deep) so we were able to use our sediment grab to scoop some carbonate mud off the bottom.  In with the mud were a few small shells and a live brittle star. We collected water samples from several different depths in the ocean and also recorded some of the water's properties along the way (including temperature, salinity, oxygen, and light).   We measured light attenuation by deploying spheroids of different colors. We finished the station with samples of organisms from the surface, both microscopic plants (in the fine mesh phytoplankton net) and animals and floating seaweed (in the larger mesh neuston net).

This afternoon all hand gathered for classes on the Law of the Sea and a hands-on nautical science class related to sail handling.  Our academic class was interrupted by a man overboard drill.  All hands quickly responded to retrieve the buoy.  Once the drill was debriefed, our afternoon snack was birthday brownies with rainbow sprinkles.  Then students took turns in watches gybing the ship, which means turning away from the wind and then adjusting the sails to continue in a new direction.  First Chief Mate Sara Martin (Williams-Mystic S04) explained to A watch what B and C watches were doing under the direction of other professional crew.  Then, each watch rotated through observing the big picture and handling the lines.

Tonight we continue heading east and south toward shallow waters off St. John, USVI. 

Until next time,
Lisa

Categories: Corwith Cramer, • Topics: williams-mystic  science  research • (0) Comments

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