Observing Ocean Surface Currents in Near Real Time with High Frequency Radar
High Frequency (HF) Radar is one of the most important tools for observing surface ocean currents in real time. These land-based stations send and receive radio signals over the ocean to measure the speed and direction of surface currents every hour.
The IOOS High Frequency Radar Network, the only one of its kind in the nation, supplies these critical data to the U.S. Coast Guard and NOAA. The information helps narrow search areas during rescue operations, track the movement of oil spills and other hazardous materials, and support forecasts that protect lives and property.
As an IOOS Regional Association, MARACOOS operates a network of 39 HF Radar stations spanning from Cape Cod to Cape Hatteras, providing the data that help keep Mid-Atlantic coastal communities and waters safe, resilient, and informed.
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