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Apports de la biostatistique à la radioécologie de terrain


Congress title :38èmes Journées de Statistique de la Société Française de Statistique
Congress town :Clamart
Congress date :29/05/2006

Summary

This communication présents examples of the contribution of the statistical techniques to the field radioecology. It is based on an example of environmental data processing in order to estimate parameters of a radioecological transfer model of radioactivity in the food chain from atmospheric deposits. The main goal of this study is to obtain the best possible adjustment between measurements and a model by fitting parameters of the model using measurements. This communication présents also the difficulties which can be encountered when we process environmental data. In spite of bad goodness of fit, this statistical processing nevertheless revealed useful because it enabled to identify the most relevant data to acquire to improve the adjustments, to propose a sampling strategy for data acquisition and to clarify the limits of use of the model.
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