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Two kinds are used; one (SMB) is towed for the whole dive, and indicates the position of the dive group throughout the dive, and the other, a delayed surface marker buoy, DSMB or decompression buoy, is deployed towards the end of the dive as a signal to the surface that the divers have started to ascend, and where they are going to surface. [1]
A delayed or deployable surface marker buoy (DSMB), also known a decompression buoy, is a soft inflatable tube that is attached to a reel or spool line at one end, and is inflated by the diver under water and released to float to the surface, running out the line as it ascends. This provides information to the surface that the diver is about to ...
DSMB spools are used to deploy inflatable surface marker buoys from depth. They have negative buoyancy and enough line to reach the surface from the planned deployment depth, and are often made of injection moulded plastic and sold as a set with the DSMB.
Ascending on a decompression buoy while slightly negatively buoyant makes accurate depth and ascent rate control relatively simple, by maintaining light tension on the line as it is reeled in, at the cost of carrying the equipment, a slightly longer time at depth during deployment, a few litres of gas for inflation, and the competence to deploy ...
Hints and the solution for today's Wordle on Thursday, February 6.
ACT Announces Data and Safety Monitoring Board (DSMB) Approval to Complete Second Patient Cohort in Clinical Trial for Dry AMD Patients Five and Six to be Treated with 100,000 Human Embryonic Stem ...
A scuba diver who deploys a Delayed Surface Marker Buoy (DSMB) at the end of a dive may use a pre-arranged colour code to indicate to the surface support crew if there is a problem for which assistance is required. In some circles a yellow DSMB is considered an emergency signal, and red means OK.
Traffic on the Massachusetts Turnpike was backed up early Friday afternoon. The photo shows vehicles stopped on the westbound side and a plow, headed west, on the eastbound side.