What is a tsunami buoy?
Quick Answer
A tsunami buoy is an ocean-monitoring instrument used to detect tsunami waves and help issue warnings after underwater earthquakes.
The Full Story
Tsunami buoys are part of early warning systems that monitor changes in sea level and pressure in the open ocean. A well-known system is DART, short for Deep-ocean Assessment and Reporting of Tsunamis, developed by NOAA and partners in the late 1990s and early 2000s. These buoys work with seafloor pressure sensors to detect wave signals that are often too small to notice from the surface far offshore. Data from them can help emergency agencies decide whether a tsunami is forming and how dangerous it may become.
Key Facts
YouTube Angle
Suggested video title for this topic:
"How do scientists spot a tsunami far out at sea? With smart buoys."
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