DART buoys (Deep-ocean Assessment and Reporting of Tsunamis)

DART (Deep-ocean Assessment and Reporting of Tsunamis) buoys are advanced instruments placed on the ocean floor to detect tsunamis. They consist of a seafloor sensor that measures water pressure, indicating changes in sea level, connected to a surface buoy that transmits data via satellite. When a tsunami occurs, the pressure sensor detects abnormal waves, sending real-time information to alert agencies. This system allows for early warning, giving coastlines crucial time to prepare and evacuate, thus helping prevent loss of life and property from potential tsunamis.