Tonga Trench Expedition
A wonderful selection of photos after two days above the Tonga Trench. These photos represent a number of deployment and recovery efforts, including deep sound, lander, core, and plankton tows.
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Much of the action aboard the ship takes place on deck, but it’s in the labs that data is collected into usable form.
Aboard the Revelle, the Electronics/Computer Lab is home to a series of computers that are key to translating information from instruments to numbers, images, plots that show what’s happening in a [...]
Traveling with the Tonga Trench Expedition is Mike Shepard, Design Engineer for the Remote Sensing Department of the National Geographic Society. Mike has brought a camera that is housed in a glass sphere designed to go to the bottom of the ocean, taking pictures along the way as well as on bottom. Deployment of [...]
The deployment of the CDT Rosette was the second experiment conducted on the voyage. The canisters attached to the CDT (Conductivity, depth, temperature) are programmed to go down open, and when at the desired depth, certain canisters will close, trapping a sample of the water from that depth.
Here, Lihini Aluwihare, Associate Professor of [...]
The first deployment of experiments was the release of Deep Sound 1 and Deep Sound 2, landers designed to go sit on the bottom of the ocean and record ambient deep sea sounds. Once finished with their missions, they returned to surface, but not together!
Deep Sound 2 arrives back at the ship during [...]
On board the Revelle, the most popular team are the cooks. Meals are served 3 times a day, and missing them would be a bad idea!
View into the galley/scullery from the dining room
All meals are cafeteria style with deck cams monitoring the activity on the main deck.
There is also a [...]
Deep Sound Deployment – Early Morning, September 1 The first instrument to be deployed was “Deep Sound.” We reported to the main lab at 5:30 a.m. and were ready to go by 7:00 a.m.
Dave Barclay, the scientist leading this part of the work, is a graduate of SIO/UCSD. His degrees are in oceanography [...]
