基于海底压力测量的海啸预警方法研究

Research on the Method of Tsunami Pre-Warning Based on Deep-Sea Pressure Measurement

海啸是一种具有极大破坏力的海洋灾害,及时准确的海啸预报可大幅降低人民生财产损失。文中介绍了一种新的海啸灾害预警方法。该方法针对海啸预警需求,分析海啸波和海洋中的其他波动特性,以海底高精度压力测量为核心并消除噪声信号影响,可实现深海远距离海啸实时预警。以该方法为基础研制的海啸监测仪可实时监测并识别海啸波,从根本上降低海啸预警误报、漏报的概率,提高海啸预警系统的性能,及时为决策者提供信息,有效降低海啸灾害带来的损失。

Tsunami is a kind of destructive marine disaster. Effective tsunami prediction in a timely and accurate way can greatly reduce the loss of people＇s property and lives. A new method for tsunami pre-warning is introduced in this paper. By analyzing the differences between tsunami wave and other waves in the sea, the method uses high-accuracy sea bottom pressure gage as the core technology, and removes the influence of highfrequency noise signals, in order to achieve real-time tsunami wave monitoring over a long distance in deep oceans. The tsunami monitor based on this theory can monitor and identify tsunami waves in a real-time manner,reduce the probability of false alarm and missing report, and improve the capability of the tsunami warning system. Through this method, important information of tsunami wave can be provided for decision-makers, thus effectively reducing the loss caused by tsunami disasters.