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| − | | + | Media Wiki generated data goes here... from PageActionTool ... 3rd attempt |
| − | Test page for importing data from Google Docs.
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| − | <p class="c22">
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| − | <h3>Buoys:</h3>
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| − | <span class="c18 c21">
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| − | There are two main classes of buoys: drifting and moored.
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| − | </span>
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| − | </p>
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| − | <p class="c22">
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| − | <span class="c18">
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| − | As the name implies,
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| − | </span>
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| − | <span class="c29">
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| − | drifting buoys
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| − | </span>
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| − | <span class="c18 c21">
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| − | are not anchored to the seafloor. They are typically used to study currents and circulation patterns. A drogue (a cylindrical or funnel-shaped device) is sometimes added to have the surface buoy follow a subsurface current.
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| − | </span>
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| − | </p>
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| − | <p class="c22">
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| − | <span class="c29">
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| − | Subsurface drifting buoys
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| − | </span>
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| − | <span class="c18">
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| − | , or
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| − | </span>
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| − | <span class="c29">
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| − | floats
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| − | </span>
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| − | <span class="c18 c21">
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| − | , usually have variable buoyancy engines to descend to a predetermined depth where they follow this current and possibly collect environmental data.
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| − | </span>
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| − | </p>
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| − | <p class="c22">
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| − | <span class="c18">
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| − | The buoyancy engine is programmed to occasionally bring the float to the surface where it can
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| − | </span>
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| − | <span class="c17">
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| − | <a class="c10" href="https://www.google.com/url?q=https://ocean-innovations.net/resources/marinetech/glossary-marine-technology-terms/%23data-telemetry&sa=D&source=editors&ust=1694458562542866&usg=AOvVaw1avqGMkbM7fWFOd6P_kOpy">
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| − | telemeter
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| − | </a>
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| − | </span>
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| − | <span class="c18 c21">
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| − | its data back to shore. (A telemeter is an electrical apparatus for measuring a quantity—such as pressure, speed, or temperature—and transmitting the result especially by radio to a distant station.) Trajectories of individual floats show how the water moves horizontally, and trajectories of groups of floats show how the water is mixed by eddies. This information is important for understanding how water tracers and pollutants are transported by the ocean. The Advanced
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| − | <br/>
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| − | Research and Global Observation Satellite (ARGOS) program is a large multinational effort to put thousands of floats in the world’s oceans.
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| − | </span>
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| − | </p>
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| − | <p class="c22">
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| − | <span class="c29">
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| − | Moored buoys
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| − | </span>
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| − | <span class="c18 c21">
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| − | are used for many purposes.
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| − | <br/>
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| − | Some of the most common uses are:
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c29">
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| − | Aids to Navigation
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| − | </span>
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| − | <span class="c18 c21">
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| − | (ATON)—used to mark hazards to mariners, harbor entrances and other navigable channels.
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c29">
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| − | Data Collection Platforms
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| − | </span>
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| − | <span class="c18 c21">
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| − | —Mooredbuoys make excellent platforms for collecting data at one location anywhere in the ocean on time scales ranging from weeks to years. Sensors and instruments can be mounted anywhere from the seafloor on up to masts installed on the top of the mooring float
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c29">
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| − | Marker Buoys
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| − | </span>
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| − | <span class="c18 c21">
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| − | —used to relocate objects on the seafloor
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c29">
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| − | Ship Moorings
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| − | </span>
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| − | <span class="c18 c21">
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| − | —typically used to moor large commercial or military ships when dock space is not available or near-shore waters are too shallow. Also used for offshore
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| − | </span>
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| − | </p>
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| − | <p class="c55 c33">
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| − | <span class="c18 c21">
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| − | Other special types of buoys are:
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| − | </span>
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| − | </p>
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| − | <p class="c22">
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| − | <span class="c29">
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| − | Subsurface buoys
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| − | </span>
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| − | <span class="c18 c21">
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| − | : used when surface measurements are not required. They also eliminate vandalism, which can be a big problem with surface buoys.
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| − | </span>
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| − | </p>
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| − | <p class="c22">
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| − | <span class="c29">
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| − | Self-deployed buoys
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| − | </span>
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| − | <span class="c18 c21">
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| − | have the anchor, line and sensors packaged in a compact assembly. Air deployed buoys are dropped from a plane.
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| − | </span>
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| − | </p>
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| − | <p class="c55 c33">
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| − | <span class="c18 c21">
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| − | Moored buoys come in a wide variety of shapes and sizes. Hull forms include disk, sphere, cone, boat hull and spar. The typical moored buoy consists of:
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c18 c21">
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| − | Tower for mounting antennas, sensors and solar panels
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c18 c21">
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| − | Float, usually has a well containing batteries
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c18 c21">
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| − | Bridle for attaching the mooring line
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c18 c21">
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| − | Mooring line to connect the bridle to the anchor
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| − | </span>
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| − | </p>
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| − | <p class="c26">
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| − | <span class="c27">
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| − | §
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| − | </span>
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| − | <span class="c14">
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| − | </span>
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| − | <span class="c18 c21">
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| − | Anchor
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| − | </span>
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| − | </p>
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| − | <p class="c55 c33">
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| − | <span class="c18 c21">
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| − | Moored buoys are important to the marine technologist because they make excellent platforms for collecting data anywhere in the ocean on time scales ranging from weeks to years. Sensors and instruments can be mounted anywhere from the seafloor on up to masts installed on the top of the mooring float. Anchors are connected to holding lines with acoustic couplings that are released to recall the instruments. Flotation holds the instruments and their tether line upright in the water column and brings them to the surface on release.
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| − | </span>
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| − | </p>
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