Advertisement

Abiki oscillations in Sakitsu Bay, west Kyushu, Japan

  • Kenji Tanaka
  • Shinichiro Gohara
  • Takayuki Koga
  • Ryuta Yamaguchi
  • Fumihiko Yamada
Original Paper

Abstract

Sakitsu and Yokaku bays in Amakusa in west Kyushu, Japan, experienced inundation damage in the February 2009 meteotsunami (Abiki) event. The oscillation characteristics of both bays are investigated by taking field measurements and conducting numerical experiments with regard to flood mitigation with the aim to reduce the flood impact during Abiki events. A continuous wavelet transform and bandpass filtering both of the pressure and water level indicated that a sequence of pressure disturbances, as small as 1.0 hPa, caused the large amplified oscillation within Sakitsu Bay. When a sequence of ocean long waves entered the bay, a surf beat evolved in the early stages. Subsequently, the sea level began to undergo large amplitude oscillations, and there was a secondary peak of oscillation with a period of around 24 min, as seen in both field measurements and numerical experiments. A surf beat with the period of 12 min formed in Yokaku Bay owing to the continuous incidence of ocean waves with period of 12 min, but its wave period was almost half of that of the natural period of the bay. This surf beat may have entered Sakitsu Bay with natural period of 11.8 min and caused large water-level fluctuations.

Keywords

Abiki Persistence of pressure disturbance Incident wave direction Continuation time of incident waves 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Notes

Acknowledgments

This work was supported financially by JSPS KAKENHI, under grant numbers 23360217 and 25278124. The Amakusa City Office, Kumamoto Prefectural Office, and the Fishery Cooperative Association of Sakitsu cooperated in obtaining the measurements.

References

  1. Akamatsu H (1982) On seiches in Nagasaki Bay. Pap Meteorol Geophys 33:95–115CrossRefGoogle Scholar
  2. Asano T, Yamashiro T, Nishimura N (2012) Field observations of meteotsunami called “abiki” in Urauchi Bay, Kami-Koshiki Island, Japan. Nat Hazards 64:1685–1706CrossRefGoogle Scholar
  3. Berkhoff JCW (1972) Computation of combined refraction–diffraction. Proceedings 13th International Conference on Coastal Engineering, ASCE, vol 1, 472–490Google Scholar
  4. Dotsenko SF, Miklashevskaya NA (2008) Generation of seiches of moving baric fronts in bound bases. Phys Oceanogr 18:63–77CrossRefGoogle Scholar
  5. Goda Y (2000) Random seas and design of marine structures. World Scientific, SingaporeCrossRefGoogle Scholar
  6. Guza RT, Bowen AJ (1975) The resonant instabilities of long waves obliquely incident on a beach. J Geophys Res 80:4529–4534CrossRefGoogle Scholar
  7. Guza RT, Davis RE (1974) Excitation of edge waves by wave incident on a beach. J Geophys Res 79:1285–1291CrossRefGoogle Scholar
  8. Hibiya T, Kajiura K (1982) Origin of the Abiki phenomenon (a kind of seiche) in Nagasaki Bay. J Ocean Soc Jpn 38:172–182CrossRefGoogle Scholar
  9. Honda K, Terada T, Yoshida Y, Isitani D (1908) An investigation on the secondary undulations of oceanic tides. J Coll Sci Imp Univ Tokyo 24:1–113Google Scholar
  10. Komar PD (1998) Beach processes and sedimentation. Prentice Hall, New JerseyGoogle Scholar
  11. Lindzen RS (1974) Wave-CISK in the tropics. J Atmos Sci 31:156–179CrossRefGoogle Scholar
  12. Monserrat S, Vibilić I, Ravinobich AB (2006) Meteotsunamis: atmospherically induced destructive ocean waves in the tsunami frequency band. Nat Hazards Earth Sys Sci 6:1035–1051CrossRefGoogle Scholar
  13. Proudman J (1929) The effects on the sea of changes in atmospheric pressure. Geophys J Int 2:197–209CrossRefGoogle Scholar
  14. Pugh DT (1987) Tides, surges, and mean sea-level. Wiley, AvonGoogle Scholar
  15. Rabinovich AB (2009) Seiches and harbors oscillations. In: Kim YC (ed) Handbook of coastal and ocean engineering. World Scientific, Singapore, pp 193–236CrossRefGoogle Scholar
  16. Shiga T, Ichikawa M, Kusumoto K, Suzuki H (2007) A statistical study on seiche around Kyushu and Satsunan Islands. Pap Meteor Geophys 74:S139–S162Google Scholar
  17. Tanaka K (2010) Atmospheric pressure wave bands around a cold front resulted in a meteotsunami in the East China Sea in February 2009. Nat Hazards Earth Syst Sci 10:2599–2610CrossRefGoogle Scholar
  18. Tanaka K (2012) On meteotsunami around Tsushima Strait generated by the Baiu front. Nat Hazards 63:805–822CrossRefGoogle Scholar
  19. Tanaka K (2013) Synoptic meteorological systems resulted in meteotsunamis in the East China Sea. Nat Hazards (submitted)Google Scholar
  20. Tanaka K, Yamada F, Kakimoto R, Matsuo K, Ohmoto T (2011) Information support systems for community-based flood risk management. J Flood Risk Manag 4:156–164CrossRefGoogle Scholar
  21. Tanaka K, Yamada F, Asano T (2012) Toward the prediction of meteotsunamis propagating over the East China Sea with downscaling approach. In: Proceedings of the international conference on disaster management 2012, The 8th annual conference of the International Institute for Infrastructure, Renewal and Reconstruction (IIIRR), 24–26 Aug 2012, Kumamoto, pp 205–214Google Scholar
  22. Torrence C, Compo GP (1998) A practical guide to wavelet analysis. Bull Am Meteorol Soc 79:61–78CrossRefGoogle Scholar
  23. Vibilic I (2008) Numerical simulation of the Proudman resonance. Cont Shelf Res 28:574–581CrossRefGoogle Scholar
  24. Watanabe A, Maruyama K (1986) Numerical modeling of nearshore wave field under combined refraction, diffraction and breaking. Coastal Eng Jpn 29:19–39CrossRefGoogle Scholar
  25. Watanabe A, Hara T, Horikawa K (1984) Study on breaking condition for compound wave trains. Coastal Eng Japan 27:71–82CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Kenji Tanaka
    • 1
  • Shinichiro Gohara
    • 2
  • Takayuki Koga
    • 2
  • Ryuta Yamaguchi
    • 3
  • Fumihiko Yamada
    • 2
  1. 1.Department of Global Environment StudiesHiroshima Institute of TechnologyHiroshimaJapan
  2. 2.Department of Civil and Environmental Engineering, Graduate School of Science and TechnologyKumamoto UniversityKumamotoJapan
  3. 3.Japan Port Consultants, Kyushu BranchFukuokaJapan

Personalised recommendations