A semiquantitative representation of uncertainty for the 3D Paleozoic bedrock model of southern Ontario / M. Bunn, T.R. Carter, H.A.J. Russell, and C.E. Logan. : M183-2/8965E-PDF

"The Southern Ontario bedrock model is a valuable resource for researchers and practitioners, but its application is subject to uncertainty. To address this issue a semi-quantitative approach to visualize the relative effects of data sparsity for each layer, identify regions where a lack of data support reduces model confidence, and quantify potential errors in data collection and model construction is presented. This analysis summarizes several sources of error, including cartesian position error, error in the vertical position of the formation contact, error between the modelled topographic surface and recorded collar elevations, and error between the modelled formation top surface and formation top picks. Where data is present, these errors are added to provide an approximation of total uncertainty"--Abstract, page 1.

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