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 GEP  Vol.2 No.3 , June 2014
Minimum Wind Stress for the Occurrence of Blue Tide on the Southeast Shore of Tokyo Bay
Abstract: In Tokyo Bay, blue tide is a phenomenon that seawater presents to be milky blue due to reflection of sunshine off surface water in which a large number of sulfur particles suspend. Its occurrence is because of coastal upwelling of the oxygen-depleted water at the bottom of the bay induced by the blowing of a northeasterly wind, consequently leading to many deaths of shellfish and some aquatic animals in the bay. In this study, an analytical solution of minimum wind stress for the occurrence of blue tide on the southeast shore of the bay is presented based on a two-layered model, and comparison with observation data of blue tide from 2003 to 2010 shows the validity of this solution. The results of sensitivity analysis to all of parameters involved in this solution were also found to agree with qualitative understandings of blue tide phenomenon.
Cite this paper: Zhu, Z. (2014) Minimum Wind Stress for the Occurrence of Blue Tide on the Southeast Shore of Tokyo Bay. Journal of Geoscience and Environment Protection, 2, 126-134. doi: 10.4236/gep.2014.23017.
References

[1]   Csanady, G. T. (1973). Transverse Internal Seiches in Large Oblong Lakes and Marginal Seas. Journal of Physical Oceano-graphy, 3, 439-447. http://dx.doi.org/10.1175/1520-0485(1973)003<0439:TISILO>2.0.CO;2

[2]   Gomyo, M., Sasaki, J., & Isobe, M. (1998). Field Observation of Aoshio at Dredged Areas in Tokyo Bay. Proceedings of Coastal Engineering, Japan Society of Civil Engineers, 45, 981-985 (in Japanese).

[3]   Ichioka, S., Sasaki, J., Yoshimoto, Y., Shimosako, K., & Kimura, S. (2009). Analysis of Sulfide Dynamics Including Outbreak of Blue Tide in Navigation Channels and Dredged Trench of Tokyo Bay. Proceedings of Civil Society B2 (Coastal Engineering), Japan Society of Civil Engineers, 65, 1041-1045 (in Japanese). http://dx.doi.org/10.2208/kaigan.65.1041

[4]   Kakino, J., Matsumura, S., Sato, Y., & Kase, N. (1987). Relationship between Aoshio, Blue-Green Turbid Water and Wind-Driven Current. Nippon Suisan Gakkuin, 53, 1475-1481 (in Japanese). http://dx.doi.org/10.2331/suisan.53.1475

[5]   Kataoka, S., Hirotaka, H., & Komatsu, A. (1989). On the Occurrence Condition of Blue Tide in the Inner Tokyo Bay. Proceedings of Ocean Development, Japan Society of Civil Engineers, 5, 233-238 (in Japanese).

[6]   Koibuchi, Y., & Isobe, M. (2007). Phytoplankton Bloom Mechanism in an Area Affected by Eutrophication: Tokyo Bay in Spring 1999. Coastal Engineering Journal, 49, 461-479. http://dx.doi.org/10.1142/S0578563407001691

[7]   Matsuyama, M., Touma, K., & Ohwaki, A. (1990). Numerical Experiments of Upwelling in Tokyo Bay in Relation to “Aoshio” (The Upwelled Anoxic Blue-Green Turbid Water). Bulletin on Coastal Oceanography, 28, 63-74 (in Japanese).

[8]   Nakatsuji, K., Nagasaka, S., & Muraoka, K. (1991). Basic Experiments on Upwelling of Anoxic Water “Aoshio” Observed in Tokyo Bay, Japan. Proceedings of Hydraulic Engineering, Japan Society of Civil Engineers, 35, 603-608 (in Japanese).

[9]   Nakatsuji, K., Yoon, J. S., Yuasa, T., & Muraoka, K. (1995). The Relationship between Wind-Driven Stratified Flow and Occurrence Mechanism of Blue Tide. Proceedings of Coastal Engineering, Japan Society of Civil Engineers, 42, 1066-1070 (in Japanese).

[10]   Otsubo, K., Harashima, A., Miyazaki, T., Yasuoka, Y., & Muraoka, K. (1991). Field Survey and Hydraulic Study of Aoshio in Tokyo Bay. Marine Pollution Bulletin, 23, 51-55. http://dx.doi.org/10.1016/0025-326X(91)90649-D

[11]   Rao, D. B. (1966). Free Gravitation Oscillations in Rotating Rectangular Basins. Journal of Fluid Mechanics, 25, 523-556. http://dx.doi.org/10.1017/S0022112066000235

[12]   Sasaki, J., Isobe, M., Watanabe, A., & Gomyo, M. (1993). The Phenomenon Regarding the Anoxic Water and a Model of Seasonal Variations of Temperature and DO in Tokyo Bay. Proceedings of Coastal Engineering, Japan Society of Civil Engineers, 40, 1051-1055 (in Japanese).

[13]   Sasaki, J., Isobe, M., Watanabe, A., & Gomyo, M. (1996). Study on Scale of Blue Tide in Tokyo Bay. Proceedings of Coastal Engineering, Japan Society of Civil Engineers, 43, 1111-1115 (in Japanese).

[14]   Ueno, S., Nadaoka, K., Ishimura, A., & Katsui, H. (1992). Analysis on the Upwelling Due to Wind in Tokyo Bay Based on NOAA-AVHRR Data. Proceedings of Coastal Engineering, Japan Society of Civil Engineers, 39, 256-260 (in Japanese).

[15]   Wilson, B. W. (1960). Note That Surface Wind Stress over Water at Low and High Wind Speeds. Journal of Geophysical Research, 65, 3377-3382. http://dx.doi.org/10.1029/JZ065i010p03377

[16]   Zhu, Z., & Isobe, M. (2012). Criteria for the Occurrence of Wind-Driven Coastal Upwelling Associated with “Aoshio” on the Southeast Shore of Tokyo Bay. Journal of Oceanography, 68, 561-574. http://dx.doi.org/10.1007/s10872-012-0119-7

[17]   Zhu, Z., & Yu, J. (2014). Estimating the Occurrence of Wind-Driven Coastal Upwelling Associated with “Aoshio” on the Northeast Shore of Tokyo Bay, Japan: An Analytical Model. The Scientific World Journal, 2014, 1-11. http://dx.doi.org/10.1155/2014/769823

 
 
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