| Autor: |
Johnsplass, Jonathan, Winger, Anja Celine, Bjørgesæter, Anders, Kleven, Marit, Jensen, Julie Damsgaard |
| Předmět: |
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| Zdroj: |
Environmental Fluid Mechanics; Oct2021, Vol. 21 Issue 5, p1009-1034, 26p |
| Abstrakt: |
Contamination of coastal water is a persistent threat to ecosystems around the world. In this study, a novel model for describing the dispersion, dilution, terminal layer formation and influence area from a point source discharge into a water body is presented and compared with field measured data. The model is a Combined Integral and Particle model (CIPMO). In the initial stage, the motion, dispersion and dilution of a buoyant jet are calculated. The output from the buoyant jet model is then coupled with a Lagrangian Advection and Diffusion model describing the far-field. CIPMO ensures that both the near- and far-field processes are adequately resolved. The model either uses empirical data or collects environmental forcing data from open source hydrodynamic models with high spatial and temporal resolution. The method for coupling the near-field buoyant jet and the particle tracking model is described and the output is discussed. The model shows good results when compared with measurements from a field study. Article Highlights: A combined integral and particle model (CIPMO) has been designed to solve transition zones of plume jet trajectories by coupling the near-field and far-field with a transition function The developed model system can use measured data and hydrodynamic modelled data to predict the terminal layer formation, spread of the particles and dilution from point source discharges A comparative analysis of a tracer tracking experiment demonstrates that CIPMO simulations coincide well with the in situ observations of transport and dilution CIPMO can be applied as a decision support system for environmental impact assessments of discharges from industrial operations, landfills, and wastewater treatment plants [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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