Tsunami buoy

A tsunami is called a "shallow water wave" and its wavelength can reach hundreds of kilometers, which is much larger than the water depth. In the deep water area, the existence of the "bottom" can be felt, and it is an ideal low-pass filter. Tsunamis, tides and other long-period fluctuations are monitored by simply measuring pressure at a fixed point on the ocean floor. Once a tsunami occurs, the tsunami buoy can be triggered automatically or by manual instruction (satellite transmission) for high-density sampling and data transmission. The system includes a seabed-based pressure gauge (with acoustic release and battery unit), surface mooring system (mainly used for hydroacoustic communication and satellite data transmission). The real-time water level data in the early warning responsibility area will be integrated into the tsunami buoy system, which can provide functions and management similar to tide level stations.

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Applied technology

System function
System advantages
Application cases

- Commodity name: Tsunami buoy
- Commodity ID: c10
A tsunami is called a "shallow water wave" and its wavelength can reach hundreds of kilometers, which is much larger than the water depth. In the deep water area, the existence of the "bottom" can be felt, and it is an ideal low-pass filter. Tsunamis, tides and other long-period fluctuations are monitored by simply measuring pressure at a fixed point on the ocean floor. Once a tsunami occurs, the tsunami buoy can be triggered automatically or by manual instruction (satellite transmission) for high-density sampling and data transmission. The system includes a seabed-based pressure gauge (with acoustic release and battery unit), surface mooring system (mainly used for hydroacoustic communication and satellite data transmission). The real-time water level data in the early warning responsibility area will be integrated into the tsunami buoy system, which can provide functions and management similar to tide level stations.

Overview of system functions

Functions of the system monitoring platform
Overview of System Advantages

High-precision quartz pressure gauge and high-stability pressure recorder

Self-Correction Technology for Long-Term Drift of Quartz Pressure Sensors

Analysis of tsunami numerical early warning and forecasting based on magnitude inversion and tsunami buoy assimilation inversion

The assembled buoy body design is convenient for ocean container transportation and quick maintenance

The self-power supply capability can maintain the normal operation of the buoy under the condition of continuous rain for 40 days

Support data concurrency, encryption and remote diagnosis
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