Analysis Of The Influence Of Wenzhou Island Project On The Oujiang Power Slobber

The Oujiang Estuary is the populous area,economically developed in our country,with the development of the economy development,the problem of shortage of land resources and population growth has become increasingly prominent in recent years.At the same time,the beach resources are very broad in the Oujiang Estuary,which are important extended areas of Wenzhou City.So Wenzhou island-land project is the good choice for Wenzhou City,which can ease this problem of increased population and decreased land.Though Wenzhou island-land project provides valuable resource,it will also change the local topography,and bring influence to local hydrodynamic environments.Therefore,under the premise of minimizing the effect on the hydrodynamic characteristics of the surrounding waters,reasonable reclamation has a very important significance for the sustainable development of the Wenzhou City.Three dimensional numerical model can accurately describe the real flow of water,but also can reflect the results of two-dimensional numerical model,has been widely used.Based on the FVCOM,the paper simulates the hydrodynamic characteristics in the project of Oujiang Estuary Reclamation,which provides strong technical support for the feasibility of the Wenzhou island-land project.The main contents in this paper are as follows:(1)The runoff,tide,and trend in the Oujiang Estuary were analyzed systematically,revealing the estuarine topography,hydrodynamic characteristics.And make a brief description of Oujiang development status.(2)The FVCOM were made a detailed introduction.The Oujiang three-dimensional mathematical model is established by the hydrodynamic module of FVCOM.Based on measured data,the model was verified,and the calculated results are in good agreement with the measured data,better reflecting the change status and distribution of the Oujiang tide and trend.(3)Research and analysis of the impact of different working conditions to the tide,current and residual current of Oujiang surrounding waters.The analysis showed that,the cofferdam built by the project,Ling-ni levee and Wenzhou Shoal consistent with the strike.So different working conditions of the island-land project will not have a large impact on the scope of the hydrodynamic characteristics in the Oujiang Estuary,only have impact on the vicinity of the project,but not obviously.