before the makeover – United States Naval Ship Vigorous (1989), a Tactical Auxiliary General Ocean Survey class vessel:
after the makeover, now – Ocean Survey Vessel Bold of the EPA (Environmental Protection Agency) (since 2004):
Built: 1989 at Tacoma Boat Building Company, Washington
Overall Length: 224 feet
Width: 43 feet
Draft: 15 feet
Displacement: 2300 tons
Speed, Sustained: 11 knots
Ship Operating Crew: 19
The OSV Bold monitors and assesses the health of ocean and coastal waters, and the standards to which they aspire others to have, they hold for themselves.
They follow safe discharge practices (of blackwater, greywater, oils & greases, lab chemicals, and ballast water), emit low sulfur dioxide, and are compliant with the International Maritime Organization’s International Convention of the Control of Harmful Anti-fouling Systems on Ships by using a hull coating that does not contain organotin pesticides and has a low copper leach rate.
Bottomgrab, otter trawl (not for otters, but fish), a rocking chair dredge are deployed from the A-frame to collect samples which are studied in the wet and dry labs onboard.
The side scan sonar, towed behind the vessel, produces digital acoustic images of the ocean floor and can echo back a signal up to a depth of 300′. A water profiler, the CTD device, measures physical water characteristics throughout a column of water in real-time. A camera behind a glass (not shown), captures images of the sediment profile layer, cutting through ocean floor and peeking at denizens’ burrows, grain size, et cetera.
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