title: Derivation and validation of a novel Semi Empirical Deposition Estimation Model (SEDEM).
abstract: Predictive models are necessary in order to minimize potential damages in the event of a nuclear or radiological release. For this reason, a novel model for the calculation of both wet and dry deposition from airborne radioactivity is proposed. Full derivation of the model and the estimation of uncertainty are presented, and the validity of the model is evaluated by calculating deposition based on several measured airborne activities in different countries. The results are compared with the corresponding measured deposition activities and the predictive power of the model is found to be good, i.e. calculated depositions being within the limits of measurement uncertainty. Additionally, limitations of the model and possible sources of error in the calculations are discussed.
authors: University of Eastern Finland, Department of Physics and Mathematics, P.O. Box 111, FI-80101, Joensuu, Finland. Electronic address: matias.koivurova@uef.fi.
authors: Matias
authors: M
authors: Koivurova
authors: Radiation and Nuclear Safety Authority - STUK, Environmental Surveillance and Measurement, Lähteentie 2, FIN-96400, Rovaniemi, Finland.
authors: Ari-Pekka
authors: AP
authors: Leppänen
mesh_terms: D008956:Models, Chemical; D015233:Models, Statistical; D018788:Radioactive Hazard Release / Q000706:statistics & numerical data*; D018570:Risk Assessment / Q000379:methods
keywords: (131)I; (134)Cs; (137)Cs; Aerosol; Deposition model; Fallout; SEDEM; Sedimentation