Numerical simulation of the hydrodynamic evolution of the Jiaozhou Bay in the last 70 years

CHEN Jinrui; CHEN Xueen

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CHEN Jinrui, CHEN Xueen. Numerical simulation of the hydrodynamic evolution of the Jiaozhou Bay in the last 70 years[J]. Haiyang Xuebao, 2012, 34(6): 30-41.

Citation:

CHEN Jinrui, CHEN Xueen. Numerical simulation of the hydrodynamic evolution of the Jiaozhou Bay in the last 70 years[J]. Haiyang Xuebao, 2012, 34(6): 30-41.

CHEN Jinrui, CHEN Xueen. Numerical simulation of the hydrodynamic evolution of the Jiaozhou Bay in the last 70 years[J]. Haiyang Xuebao, 2012, 34(6): 30-41.

Citation:

CHEN Jinrui, CHEN Xueen. Numerical simulation of the hydrodynamic evolution of the Jiaozhou Bay in the last 70 years[J]. Haiyang Xuebao, 2012, 34(6): 30-41.

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Numerical simulation of the hydrodynamic evolution of the Jiaozhou Bay in the last 70 years

CHEN Jinrui¹,
CHEN Xueen^2
,

1.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China;Fujian Marine Forecast, Fuzhou 350003, China
2.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China

Received Date: 2011-03-21
Rev Recd Date: 2011-07-20

Abstract

Abstract

A three dimensional tide and tidal current system was established using unstructured triangular grids for Jiaozhou Bay,based on a Finite-Volume Coastal Ocean Model (FVCOM).With five different sets of coastlines and water depths in different decades,we compared the hydrodynamic changes of Jiaozhou Bay including tidal prism,tide and tidal currents as well as water exchange rate.The model results show that the tidal prism decreases gradually with the reducing of the water area of Jiaozhou Bay.To be more specific,the tidal prism in 2008 reduces by 31.5% compared with that in 1935,which is about 3.9×10⁸m³.The patterns of velocity fields in different decades are similar,however the velocity decreases.The multi-vortex pattern of the Eulerian residual currents remains with small changes of their positions and sizes.The strongest Eulerian residual current normally appears near Tuandao.The general trend of water exchange capacity is decreasing.The averaged half-exchange time is 37.0,36.7,39.2,39.7,40.8 d in 1935,1966,1986,2000 and 2008,respectively.
- Jiaozhou Bay,
- coastline change,
- tide and tidal current,
- tidal prism,
- water exchange rate

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References(17)

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