With the core cut and split between the research teams, our attention was moved to the recovery operation of the lander. The seas were very rough which made for a challenging operation. The captain did a fantastic job of guiding the Revelle.
Here you can see the size of the waves, the searchlight and [...]
Last night was a very busy time on board. Between recovering the gravity core from the bottom of the ocean, to recovering a lander in high seas, to the launching of a pair of McLane pumps to sample water , it was a non-stop evening.
The gravity core consisted of a bottom steel bit [...]
9/3/12 11 am. Yesterday was a busy day, including extensive collection of deep-sea microbes using a McLane filtration system for the Aluwihare research program (Lihini Aluwihare, Jenan Karbush, and Ulisses Bazarra present), two lander recoveries (from 6.9 and 9.1 km depth) for the National Geographic Society (Mike Shephard present) and the Bartlett research program (Doug [...]
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.
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 [...]