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National Ocean Service National Oceanic and Atmospheric Administration
NOS Education:
Home Education For Students Currents Shore-based Current Meters

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Shore-based Current Meters

This antenna uses high frequency (HF) Radar to measure the direction and speed of ocean surface currents. When two or more Radar antennas are used, a scientist can calculate an entire field of wind driven surface current velocities.

High frequency radar antenna used to measure direction and speed of ocean surface currents.