Hazards and Disasters


What is the DART array

DART stands for the Deep-Ocean Assessment and Reporting of Tsunami array, which consists of 39 buoys that float in critical spots in the Pacific. Each DART system consists of an anchored seafloor bottom pressure recorder (BPR) and a companion moored surface buoy for real-time communications. An acoustic link transmits data from the BPR on the seafloor to the surface buoy. The BPR collects temperature and pressure at 15-second intervals. In normal mode, it transmits the data every 15 minutes. If there is an event, the system reports back data collected in 15-second intervals every minute.


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