**Author details**

disturbances at sea level. Some latest papers pointed the importance of the (sub-) seasonal scale

Those findings in larger-scale motion will provide the capability for the prediction of the meteorological tsunamis from atmospheric and oceanographic aspects. It should be noticed that there have been much advances in technologies on observation, numerical modelling and others to make progresses scientifically in meteorological tsunamis. Especially, the highperformance computing technology brings us huge benefits to resolve the pressure disturbance in using numerical model such as the weather forecasting and research (WRF) model [46]. **Figure 14** illustrates a framework on the prediction of the meteorological tsunami. In obtaining a first guess, it is better to start the weather forecast in the synoptic scale with the duration of 2 or 3 days to make a first guess on the stability structure related to the wave duct or wave CISK. And then the downscaling run executes to resolve the atmospheric (mainly pressure)

The infrared images of the satellite remote sensing have useful information if the sequence of the wavy clouds in the mid-troposphere moves fast over the ocean satisfying the Proudman resonance. A new geostationary meteorological satellite named Himawari-8 stated the operation in Asia-Australian region since July 2015. The Himawari-8 has 16-image channels of visible, near infrared, infrared bands, with the horizontal resolution of 0.5 (visible) to 2 km (infrared). The scan interval is every 10 min for global mode, and every 2.5 min for Japan area. The target such as typhoon or hurricane also scans for every 2.5 min for necessity. It will be

Although the mesoscale model can resolve the pressure disturbance to a considerable extent, it is not easy to apply directly into the ocean models as a surface boundary condition, because

much easier to see the propagation of the atmospheric wave using satellite data.

variation propagating from lower to mid-latitude.

**Figure 14.** A framework on the prediction of the meteorological tsunami.

disturbance at sea level.

28 Tsunami

Kenji Tanaka\* and Daiki Ito

\*Address all correspondence to: k.tanaka.pb@cc.it-hiroshima.ac.jp

Department of Global Environment Studies, Faculty of Environmental Studies, Hiroshima Institute of Technology, Hiroshima, Japan
