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Home  Education  Currents  Shore-based Current Meters
  << Back This plot of wind driven ocean surface currents was created using  shore-based high frequency radar. When two or more radar antennas are  used, a scientist can calculate an entire field of surface current  velocities. Using this data, the scientist can produce a map of surface  currents for a large coastal area. The map consists of a series of  different colored arrows. The direction of each arrow represents the  direction that the current is moving, and the color of each arrow  represents the current's speed at that particular location (red=fast,  blue=slow.)


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