SIMULATION OF THE BEHAVIOR OF OXYGEN-DEFICIT WATER IN TOKYO BAY BY THREE-DIMENSIONAL WATER QUALITY MODEL

Nobuo Mimura; Mitsuhiro Tsukada; Masaharu Suzuki

doi:10.9753/icce.v26.%p

No. 26 (1998), Conference Proceedings

No. 26 (1998)

SIMULATION OF THE BEHAVIOR OF OXYGEN-DEFICIT WATER IN TOKYO BAY BY THREE-DIMENSIONAL WATER QUALITY MODEL

Conference Proceedings

https://doi.org/10.9753/icce.v26.%25p

Published 1998-01-29

Nobuo Mimura⁺⁻
Mitsuhiro Tsukada⁺⁻
Masaharu Suzuki⁺⁻

Nobuo Mimura

Center for Water Environment Studies, Ibaraki University

Mitsuhiro Tsukada

Center for Water Environment Studies, Ibaraki University

Masaharu Suzuki

Computer Technology Integrator Inc.

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Keywords

water quality model
water quality
oxygen deficit water
Tokyo Bay

How to Cite

Mimura, N., Tsukada, M., & Suzuki, M. (1998). SIMULATION OF THE BEHAVIOR OF OXYGEN-DEFICIT WATER IN TOKYO BAY BY THREE-DIMENSIONAL WATER QUALITY MODEL. Coastal Engineering Proceedings, 1(26). https://doi.org/10.9753/icce.v26.%p

Abstract

Semi-enclosed bays have been suffering from eutrophication in many countries. The present study deals with simulation of this problem focusing on Tokyo Bay, Japan. Tokyo Bay faces blue tides and fish death events caused by the oxygen-deficit water formed in the bottom layer during summer. To study the formation of the oxygen-deficit water, a model is developed to simultaneously simulate the flow, density stratification, and the material circulation in the ecosystem. The behavior of oxygen-deficit water, such as formation, growth, and stagnation, in Tokyo Bay is reproduced and examined by the model. The present model is effective in studying the temporal and spatial changes in water quality in a detailed manner. Moreover, countermeasures such as reduction of the land-based pollutant loads and sand capping on the polluted bottom mud are also examined.

https://doi.org/10.9753/icce.v26.%25p

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SIMULATION OF THE BEHAVIOR OF OXYGEN-DEFICIT WATER IN TOKYO BAY BY THREE-DIMENSIONAL WATER QUALITY MODEL

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