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A buoy (/ ˈ b ɔɪ, b uː. i /; boy, BOO-ee) [1] [2] is a floating device that can have many purposes. It can be anchored (stationary) or allowed to drift with ocean currents. History
Weather Buoy / Data Buoy / Oceanographic Buoy operated by the Marine Data Service. The first known proposal for surface weather observations at sea occurred in connection with aviation in August 1927, when Grover Loening stated that "weather stations along the ocean coupled with the development of the seaplane to have an equally long range, would result in regular ocean flights within ten years."
The critical capability of an Argo float is its ability to rise and descend in the ocean on a programmed schedule. The floats do this by changing their effective density. The density of any object is given by its mass divided by its volume. The Argo float keeps its mass constant, but by altering its volume, it changes its density.
A float will descend to a predetermined depth where it will be neutrally buoyant. Once a certain amount of time has passed, most floats will rise back to the surface by increasing its buoyancy so it can transmit the data it collected to a satellite. A float can collect data while it is neutrally buoyant or moving through the water column. Often ...
MOBY is a buoy 15 meters tall floating vertically in the water with approximately 3 meters above the surface and 12 meters below. A float canister is at water level, measuring approximately 2 meters high and 1.5 meters in diameter above the water, 1 meter in diameter below the water.
While traditional crab gear uses vertical lines to connect the pots to buoys at the surface, pop-up gear keeps the rope and a flotation device on the ocean floor with the trap. To retrieve the pot ...
They consist of a surface float, a tether, and a drogue. The surface float contains a battery, instruments that collect data like temperature, barometric pressure, wind speed and direction, and ocean salinity, and a transmitter that relays the position of the drifting buoy and data collected by the instruments on the surface float to satellites.
Just like traffic lights and signs help drivers on the road, boaters have buoys and signs to guide them to and from shore safely.