Bibliografie

(eng): A stepwise sequential assimilation algorithm is proposed based on an optimisation approach for recursive parameter estimation and tracking of radioactive plume propagation in the early stage of a radiation accident. The proposed method is designated as a stepwise re-estimation of the source term release dynamics and an improvement of several input model parameters. It results in a more precise determination of the adversely affected areas in the terrain. Twin experiment generating noiseless simulated "artificial" observations is studied to verify the minimisation algorithm. The impact of the measurement noise on the re-estimated source release rate is examined.