J.A. Jankowski and W. Zielke
Abstract The paper critically reviews the presently available experimental data from various tests and experiments connected with the deep-sea mining issue with regard to their feasibility in supporting and validating the developed numerical models. Numerical modelling is applied mainly to predetermining the plume development and seafloor blanketing caused by various sediment discharges. Continue reading
J.A. Jankowski, A. Malcherek and W. Zielke
Abstract. A numerical model was developed in order to estimate the residence time of a sediment plume generated by potential deep-sea mining activities with special attention to discharges in the bottom boundary layer. The site of the Disturbance and Recolonization Experiment (DISCOL) in the Peru Basin in the southeast Pacific Ocean was chosen as a case study. Continue reading
J.A. Jankowski and W. Zielke
Abstract. In the case of deep sea mining discharges the overall aim of numerical modelling is to provide tools which allow extrapolation and evaluation of the experimental results in order to formulate an environmental impact statement. The report critically reviews the presently available experimental data resulting from various tests and experiments connected with the ocean mining research from the point of view of their feasibility in verification and supporting of the hydrodynamical models developed and applied to assess some of the deep sea mining impacts. Continue reading
J.A. Jankowski, A. Malcherek and W. Zielke
Abstract. A numerical model was developed in order to estimate the residence time of a sediment plume generated by deep-sea mining activities. The model is capable of simulating density currents in a sediment-laden ocean bottom boundary layer. The numerical model was verified using an analytical solution, which does not take into account the above mentioned effects. The results show that due to density differences the residence time of a plume is reduced substantially. Continue reading