Abstract
The model study aims at the assessment of effects of mining activities of manganese nodules in the deep-sea. A Lagrangian transport model is applied on a global scale to estimate the possible temporal and spatial scales of the dispersion of released tailings. The simulations take into account variations of the sediment properties, of the water depth of the release and of the hydrodynamical regime since the current system in the area of interest, the German mining claim in the eastern equatorial Pacific, is characterized by high interannual variations. The results are mainly determined by the sediment properties and residence time as well as the affected area decrease with increasing release depth.
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