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Uncertainty as the overlap of alternate conditional distributions
Authors:Olena Babak  Clayton V Deutsch
Institution:(1) Centre for Computational Geostatistics, Department of Civil and Environmental Engineering, University of Alberta, 3-133 NREF Building, Edmonton, AB, Canada, T6G 2W2
Abstract:An important task in modern geostatistics is the assessment and quantification of resource and reserve uncertainty. This uncertainty is valuable support information for many management decisions. Uncertainty at specific locations and uncertainty in the global resource is of interest. There are many different methods to build models of uncertainty, including Kriging, Cokriging, and Inverse Distance. Each method leads to different results. A method is proposed to combine local uncertainties predicted by different models to obtain a combined measure of uncertainty that combines good features of each alternative. The new estimator is the overlap of alternate conditional distributions.
Keywords:Local uncertainty  Simple kriging  Inverse distance  Uncertainty overlap  Conditional distribution  Estimation variance
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