Dispersion in hydrosphere
The model for calculation dispersion modelling in marine environment implemented in ESTE takes into account three phases: dissolved phase, suspended sediment and bottom (seabed) sediment.
The considered interactions between these phases in the implemented approach are:
a) advective transport,
c) radioactive decay,
d) burial process on bottom sediment,
e) desorption and adsorption processes,
f) resuspension and deposition.
The complex description of the implemented model is available here.
The model was benchmarked within the programme MODARIA II ( Modelling and Data for Radiological Impact Assessments, organized by IAEA), in Working group 7 "Assessment of Fate and Transport of Radionuclides Released in the Marine Environment".