An unsteady three-dimensional eutrophication model in Tolo harbour, Hong Kong.
An unsteady three-dimensional eutrophication model in Tolo harbour, Hong Kong.
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DOI：
10.1016/j.marpolbul.2005.02.015
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发表时间：
2005
影响因子：
5.8
通讯作者：
K. Chau
中科院分区：
文献类型：
--
作者：
K. Chau
富营养化现象往往导致水质不良。采用数值生成、边界拟合、正交曲线网格系统和网格分块技术，建立了香港吐露港近岸沃茨富营养化动力学的三维非定常有限差分数值模式。它模拟了九种水质成分的运输和相互作用。模型中某些动力学系数的调整是通过现场数据校正实现的。结果表明，该模型能合理地再现吐露港夏季各水质组分之间的相互作用、富营养化过程，特别是底层水缺氧状况。
The eutrophication phenomenon often leads to undesirable water quality. This paper delineates an unsteady three-dimensional finite difference numerical model for eutrophication dynamics in the coastal waters of Tolo harbour, Hong Kong, employing the numerically generated, boundary-fitted, orthogonal curvilinear grid system as well as a grid “block” technique. It models the transport and interaction of nine water quality constituents. Adjustments of values of some kinetic coefficients in the model are effected through calibration with field data. It is demonstrated that the model can reasonably reproduce the interactions amongst all the water quality constituents, the eutrophication processes and, in particular, the featured bottom water anoxic condition during the summer in Tolo harbour.