R/V Thomas Thompson
Operated by the
University of Washingtons's School
(Sister ships include the
NOAA's Ronald Brown,
SIO's Roger Revelle and
The Thompson can accommodate 34 scientists, 22 officers and crew and 2 marine
technicians for 33 days at 14 knots plus 29 days at 3 knots.
Oregon State University.
The Wecoma carries 13 crew and 18 scientists for 14-30 days at 10-14.5 knots.
The Wecoma's sister ship is the
Woods Hole Oceanograpic Institution.
Remotely Operated Vehicle (ROV):
ROVs are used when fine-scale mapping and sampling are required on the seafloor. Unlike manned submersibles which have very limited bottom time, ROVs can explore the seafloor for unlimited amounts of time before coming to the surface. NeMO will be using the Remotely Operated Platform for Ocean Science (ROPOS) on the
first 1999 Thomas Thompson Cruise.
Jason will be participating on the
second Thompson cruise. Jason will be deploying the extensometer as well as a mooring at Axial.
Jason has participate in many scientific endeavors as well as working on the
exploration of the wreckage of the Titanic.
Jason is operated by the Woods Hole Oceanographic Institute.
Included on ROPOS
1) SIT camera
2) Color 3-chip camera
3) 5 and 7 function manipulators
4) Mesotech forward-looking sonar
5) Depth, heading, altitude measurements
6) Still camera (35 mm)
7) Standard sample tray
Conductivity, temperature and depth recorder (CTD) will be used on the
to help map out the plumes generated from the discharge of the hydrothermal vents at Axial Volcano. The CTD instrument is cast up & down or towed from the
ship. Data is sent back in real-time to the ship's laboratory where scientists
can evaluate the location of the plumes. Scientists can distinguish plumes from
vents which are consistently discharging fluids vs. those generated from a
System Used to Assess Vented Emissions (SUAVE) provides continous in-situ analysis of
hydrothermal vent chemicals. SUAVE can be used on CTD's, ROV's and ALVIN.
SUAVE will be used on the
Wecoma cruise in 1999.
To be used on the ROVs:
1) PMEL fluid sampler
2) Ti Gas samplers
5) Hi-Temperature probe
6) Niskin bottles
7) Suction sampler
8)Imagenex downward-looking scanning sonar
2) HOBO Hi-temp probes (up to 4)
3) Low-temp probes (up to 10)
7) Bacteria traps (microbial colonization chambers)
8) Seafloor navigation beacons (transponders)
For more information: