Preprints
https://doi.org/10.5194/gmd-2020-106
https://doi.org/10.5194/gmd-2020-106

Submitted as: model description paper 19 Jun 2020

Submitted as: model description paper | 19 Jun 2020

Review status: a revised version of this preprint is currently under review for the journal GMD.

Surf3DNet1.0: A deep learning model for regional-scale 3D subsurface structure mapping

Zhenjiao Jiang1,2, Dirk Mallants2, Lei Gao2, Gregoire Mariethoz3, and Luk Peeters4 Zhenjiao Jiang et al.
  • 1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, Changchun, 130021, China
  • 2CSIRO Land & Water, Locked Bag 2, Glen Osmond, SA 5064, Australia
  • 3University of Lausanne, Faculty of Geosciences and Environment, Institute of Earth Surface Dynamics, Lausanne, Switzerland
  • 4CSIRO Mineral Resources, Locked Bag 2, Glen Osmond, SA 5064, Australia

Abstract. This study introduces an efficient deep learning approach based on convolutional neural networks with joint autoencoder and adversarial structures for 3D subsurface mapping from surface observations. The method was applied to delineate palaeovalleys in an Australian desert landscape. The neural network was trained on a 6,400 km2 domain by using a land surface tomography as 2D input and an airborne electromagnetic (AEM)-derived probability map of palaeovalley presence as 3D output. The trained neural network has a maximum square error < 0.10 and produces a square error < 0.10 across 93 % of the validation areas, demonstrating that it is reliable in reconstructing 3D palaeovalley patterns beyond the training area. Due to its generic structure, the neural network structure designed in this study and the training algorithm have broad application potential to construct 3D geological features (ore bodies, aquifer) from 2D land surface observations.

Zhenjiao Jiang et al.

 
Status: final response (author comments only)
Status: final response (author comments only)
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Zhenjiao Jiang et al.

Model code and software

A deep learning model for regional-scale 3D subsurface structure mapping J. et al. 2020 https://doi.org/10.7910/DVN/DDEIUV

Zhenjiao Jiang et al.

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Short summary
Fast and reliable tools are required to extract hidden information from big geophysical and remote sensing data. Deep learning model in 3D image construction from 2D single image is here developed for palaeovalley mapping from globally available digital elevation data. The outstanding performance for 3D subsurface imaging gives confidence that this generic novel tool will make better use of existing geophysical and remote sensing data for improved management of limited earth resources.