There are several sources for the radionuclides in the ocean. They originate from historical nuclear bomb testing, authorized discharges from nuclear power plants, nuclear waste and as results of accidents. Dispersion of radionuclides in the ocean is followed by monitoring activities like sampling at sea or at coastal locations. However, another way of doing it is to create model simulations.
Model simulations can help us follow the contamination after accidental releases and study its fate in the ocean. It can give insight into oceanographic events like currents and properties of water masses.
Magne’s PhD project aims to create a simulation model for radionuclide transport in the marine environment. It will combine ocean circulation modelling and modelling of radionuclides in both low molecular mass, colloidal and particulate forms, and take into account physical and chemical processes in the ocean.
Such model can be very useful for emergency preparedness in Norway. It can predict how much contamination would reach Norwegian coast and how fast it would happen in case of an accident at a near-coastal nuclear installation.