Title: Evaluation of detection abilities of monitoring networks using multiple assessment criteria

Authors: Radek Hofman; Petr Pecha; Václav Šmídl

Addresses: Department of Adaptive Systems, Institute of Information Theory and Automation of the Czech Academy of Sciences, v.v.i., Pod Vodarenskou vezi 4, 182 08, Prague 8, Czech Republic ' Department of Adaptive Systems, Institute of Information Theory and Automation of the Czech Academy of Sciences, v.v.i., Pod Vodarenskou vezi 4, 182 08, Prague 8, Czech Republic ' Department of Adaptive Systems, Institute of Information Theory and Automation of the Czech Academy of Sciences, v.v.i., Pod Vodarenskou vezi 4, 182 08, Prague 8, Czech Republic

Abstract: The problem of evaluation of radiation monitoring network quality is considered. The comparison of possible network configurations is performed on simulated experiments where a twin model is used to simulate observed data. An assimilation procedure based on the particle filter approach is run for each configuration of the network. Specifically, multiple realisations of segmented Gaussian plume models are computed, each with different parameters. The simulated measurements from the network sensors are used to weight the likelihood of the parameter realisations, providing an empirical posterior distribution of the parameters. The quality of the network is then evaluated as an expected value of multiple loss functions with respect to the empirical posterior distribution. Our goal is to provide a tool that allows the decision-makers to compare the proposed configurations from various points of view. The results for a hypothetical discharge of radioactivity are presented.

Keywords: atmospheric dispersion modelling; dose rates; assimilation; monitoring networks; air pollution; air quality; radiation monitoring; simulation; Gaussian plume models; radioactivity discharge.

DOI: 10.1504/IJEP.2014.065913

International Journal of Environment and Pollution, 2014 Vol.55 No.1/2/3/4, pp.129 - 138

Available online: 29 Nov 2014 *

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