Glossary
Chart – a map designed to assist navigation by air or sea
Current – a steady flow of warm or cold surface ocean water in a prevailing direction
Drifter (also known as a drifting buoy) โ a floating ocean buoy equipped with meteorological and/or oceanographic sensing instruments linked to transmitting equipment for sending the observed data to collecting centers
Drifting buoy (also known as a drifter) โ a floating ocean buoy equipped with meteorological and/or oceanographic sensing instruments linked to transmitting equipment for sending the observed data to collecting centers
Drogue โ A sea anchor, usually a canvas-covered conical frame, floating behind a vessel to prevent drifting or to maintain a heading into the wind
Eddy โ A current, as of water or air, moving contrary to the direction of the main current, especially in a circular motion
Gyre โ a large body of water moving in a circle
Hurricane โ a severe tropical cyclone usually with heavy rains and winds moving at 73-136 knots
Sea surface temperature (SST) – measure of heat contained in water at the surface of the ocean