High-pass filtering and maximum entropy spectrum analysis were used to analyze the water level measured data during Tonga Tsunami of January 2022 from Chichi jima station in Japan and Luchaogang station in Shanghai.The results show that the maximum height of tsunami wave at Chichi jima station is 0.88 m,and its main period is 12.2～20.5 min.The maximum height of tsunami wave at Luchaogang station is 0.07 m,and its main period is 20.3 min.The derived tsunami waves are different when uses different sampling frequencies.The time between the first wave and the maximum wave height also varies at different stations.
关键词
海啸/高通滤波/最大熵谱分析/监测预警/海啸评估
Key words
tsunami/high-pass filtering/maximum entropy spectrum analysis/monitoring and warning/tsunami evaluation
维普
万方数据