Investigation on tsunami wave characteristics picking and analyzing technique for water level data from coastal tide gauges
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.
tsunamihigh-pass filteringmaximum entropy spectrum analysismonitoring and warningtsunami evaluation
万方数据
维普
