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依据质量守恒定律,提出了一个新的计算海洋沉积物输运率的示踪物理论框架,它对人工和天然示踪物都是适用的.该模型可用以计算面上的输运率,从而提供与经验公式方法相对照的独立信息或验证手段.具体计算方法是,获取两个不同时刻的研究区域内的示踪物浓度和地形资料,计算示踪物浓度和地形随时间和空间的变化率,进而根据流速观测、海底沙波迁移等信息确定边界条件,最后得到沉积物输运率在研究区域内的平面分布状况.此外,该模型经过进一步改进,有可能使示踪沉积物的密度和粒度无需与现场物质的动力学特征一致.
According to the law of conservation of mass, a new tracer theory framework for calculating the transport rate of marine sediments is proposed, which is applicable to both artificial and natural tracers. The model can be used to calculate the rate of transport on the surface, thus providing independent information or means of validation as compared to empirical formula methods. The specific calculation method is to obtain the tracer concentration and the topographic data in two different time-zones and calculate the tracer concentration and the change rate of the terrain with time and space, and then determine according to the flow rate observation and the submarine sand wave migration information Boundary conditions, and finally get the sediment transport rate in the study area of the plane distribution. In addition, the model was further refined to make it possible to eliminate the need for the density and particle size of the tracer deposits to be consistent with the kinetic characteristics of the field material.