| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2013: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Outline of Final Research Achievements |
Marine weather observation was conducted on the East China Sea in the winter of 2013 and 2014 to investigate the atmospheric mechanisms to generate and to enhance meteotsunamis. From the observed vertical profile data, it was revealed to form the wave ducting layers that the significance of lifting the warm moist air from the South China region along the low-level trough surrounded by a couple of the high pressure systems. One was passing eastward over the south of Japan and another was stalled over the Siberia. Under the such condition, a train of the pressure waves was generated with the duration as long as several hours. According to the tide gauge data, it was revealed that the effect of the tidal motion played important role in amplifying the secondary oscillation resulted in meteotsunamis as much as the shoreline shape of the bay and incident angle of the pressure waves.
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