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A Tsunami buoy

The Deep-ocean Assessment and Reporting of Tsunamis (officially abbreviated and trademarked as DART) system is a component of an enhanced tsunami warning system.

Each DART station consists of a seafloor bottom pressure recording (BPR) package that detects pressure changes caused by tsunamis and a surface buoy. The surface buoy receives transmitted information from the BPR via an acoustic link and then transmits data to a satellite, which retransmits the data to ground stations for immediate dissemination to NOAA's Tsunami Warning Centers, NOAA's National Data Buoy Center, and NOAA's Pacific Marine Environmental Laboratory. The Iridium commercial satellite phone network is used for communication between 31 of the buoys.[1]

Prototype development began in 1995 and the first four DART stations were in place by 2000.

As of 2004, there were six DART stations deployed in the Pacific; however, due to heightened concerns in the wake of the 2004 Indian Ocean earthquake and its subsequent tsunamis, plans were announced to deploy an additional 32 DART buoys during mid-2007.[2] These would include stations in the Caribbean and Atlantic Ocean for the first time.

The United States array was completed in 2008 totaling 39 stations in the Pacific Ocean, Atlantic Ocean, and Caribbean Sea. The international community has also taken an interest in DART buoys and as of 2009 Australia, Chile, Indonesia and Thailand have deployed DART buoys to use as part each countries tsunami warning system.

Contents

Diagram

DART II System Diagram.jpg

See also

References

External links

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