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".