Investigation of Deposition Velocities and Atmospheric Transport Models Used in Radiological Safety Assessments

RAC concluded that the default deposition velocity used in MACCS was too high, but other conservatisms in the atmospheric transport model more than compensated for the difference in doses using a lower deposition velocity.
Publications
J.E. Till, A.S. Rood, C.D. Garzon, and R.H. Lagdon. 2014. “Comparison of the MACCS2 Atmospheric Transport Model with Lagrangian Puff Models as Applied to Deterministic and Probabilistic Safety Analysis.” Health Physics, 107, 213-230.