Abstract:

Addressing the challenge that existing visualization methods struggle to dynamically present the deduction process of three-dimensional(3D) water quality, this study explores an integration strategy combining water quality calculation results with digital twin scenarios. We propose a 3D water quality deduction and simulation method to achieve intuitive, precise, smooth, and dynamic presentations of 3D water quality deduction process within digital twin environments. We applied the model to simulate the standard-exceeding total phosphorus in the Danjiangkou Reservoir in autumn 2021 as a case study, and integrated the simulation results into the digital twin environment to simulate the transfer and diffusion of organic pollutants. Application outcomes demonstrate that compared to traditional two-dimensional displays, our proposed method offers more intuitive and richer information content as well as dynamic representation of hierarchical water quality indicators within digital twin scenarios.

Key words: three-dimensional water quality, digital twin, deduction simulation, hydrodynamic and water quality model, South-to-North Water Diversion Project, Danjiangkou Reservoir area