Enkoping Esker Pilot Study : workflow for data integration and publishing of 3D geological outputs
2017
This report describes the workflows for preparing the data for constructing and publishing a
geological model of the Enkoping Esker, Sweden. This pilot study was a collaborative effort
between the British Geological Survey (BGS) and Swedish Geological Survey (SGU). The main
role of the BGS was to help prepare the data for the geological model, provide advice about the
construction of the model, technical check the model and create the publication methods for the
dissemination of the model. The main role of SGU was to construct the geological model using
the SubsurfaceViewer software (INSIGHT).
The following publication methods were deployed:
Synthetic Geological Model Web Viewer
Minecraft
2D and 3D shapefiles
ASCII grids (Top, Base, Thickness and Rockhead (base of superficial deposits))
Groundhog Desktop compatible project files and set up
GeoVisionary v3 compatible project files and set up
Subsurface Viewer files
GOCAD-SKUA surfaces (.ts) – top, base and shells
A number of suggestions were made by the BGS to improve the workflow methodology. These
included:
Using Groundhog in the initial stages of model development to minimise snapping and
model checks in cross-section
Bathymetry would have improved the modelling of the distribution of superficial deposits
at the lake bed surface
Using the Unlithified Coding Schema (Cooper et al 2006) for the coding of boreholes
Ensuring that the borehole index information is correct (start heights) which can reduce
the error in the elevations when correlating stratigraphy
Looking at stochastic methods for modelling lithofacies in eskers
Developing simple visualisations of uncertainty in 2D based on quantitative information
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