• Corpus ID: 246442173

Accelerated 3D Electrical Resistivity Tomography with a Scalable Jacobian-free Approach

@inproceedings{Lee2022Accelerated3E,
  title={Accelerated 3D Electrical Resistivity Tomography with a Scalable Jacobian-free Approach},
  author={Jonghyun Lee},
  year={2022}
}
A Jacobian-free inversion method is presented to accelerate Electrical Resistivity Tomography (ERT) for shallow aquifer characterization. The ERT problem typically implements the adjoint state method to efficiently compute Jacobian during the inversion. However, the adjoint state method needs intrusive forward model code changes and may not be computationally scalable with many observations especially when one performs 3D ERT surveys with dense multi-electrode arrays. Here the Principal… 

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