Marine weather observation relevant to meteotsunamis on the East China Sea
Project/Area Number |
25287124
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Meteorology/Physical oceanography/Hydrology
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Research Institution | Hiroshima Institute of Technology |
Principal Investigator |
Kenji Tanaka 広島工業大学, 環境学部, 准教授 (30315288)
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Co-Investigator(Kenkyū-buntansha) |
NAKAJO Sota 熊本大学, 大学院自然科学研究科, 助教 (20590871)
YAMADA Fumihiko 熊本大学, 大学院自然科学研究科, 教授 (60264280)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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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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Keywords | 気象津波 / 東シナ海 / 潮位副振動 / 気圧微変動 / 海洋長波 / ニューラルネットワーク / 大気海洋相互作用 |
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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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Abiki oscillations in Sakitsu Bay, west Kyushu, Japan2013
Author(s)
Tanaka, K., Gohara, S., Koga, T., Yamaguchi, R., Yamada, F
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Journal Title
Natural Hazards
Volume: (online first)
Issue: 1
Pages: 1-18
DOI
Related Report
Peer Reviewed
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[Presentation] 東シナ海沿岸における顕著な潮位副振動発生前の海上気象場に関する現地観測2015
Author(s)
田中健路, 橋本賢太郎, 原大祐, 打越智大, 大幡由季, 小野雄輝 高野将大, 福井惇司, 堀田直樹, 三宅正展, 宮庄愛香, 吉岡隼也
Organizer
日本気象学会関西支部2015年度第3回例会
Place of Presentation
広島地方気象台(広島県広島市)
Year and Date
2015-01-16
Related Report
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