2023 Volume 79 Issue 17 Article ID: 23-17039
The study clarified the generation status and characteristics of micro-pressure waves around Osaka Bay in 2021 through the use of several micro-pressure gauges installed in the area. It was found that typhoons and fronts passing near the target area were related to the generation of micro-pressure waves. The WRF analysis depicted the process of micro-pressure wave passage around Osaka Bay and indicated its potential to cause significant fluctuations in water level. While no significant meteorological tsunami was observed in this study, water level fluctuations possibly caused by the micro-pressure wave were observed from November 30 to December 1, 2011. An ocean long wave analysis, based on a hypothetical sinusoidal wave model using a nonlinear long wave equation, demonstrated generally consistent amplitudes and water level fluctuations at the observation points. However, there are still some issues to address regarding reproducibility.
