Usage examples for empymod.
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figures
1a_Frequency_Single-and-Crossplot.ipynb
1b_Frequency_Dipole-vs-Bipole.ipynb
1c_Comparison_of_Source-Receiver_Combinations.ipynb
2a_Time_Step-and-Impulse.ipynb
2b_DC_rho-a_Dipole-Dipole.ipynb
2c_Note_regarding_land_CSEM.ipynb
2d_Cole-Cole_IP.ipynb
3a_Full-Diffusive_comparison.ipynb
3b_Halfspace-Dipole_comparison.ipynb
4a_TMTE-split.ipynb
4b_Digital-Linear-Filter_design.ipynb
5a_CSEM.ipynb
6a_Benchmark.ipynb
6b_Profiling.ipynb
7a_DLF-Standard-Lagged-Splined.ipynb
LICENSE
README.md

README.md

Examples for empymod

  1. Published results
  2. Frequency-domain examples
  3. Time-domain examples
  4. Comparison to analytical solution
  5. Add-ons
  6. Reproducing published results
  7. Tools
  8. Explanations and educational material

0. Published results in other repositories

  • See article-tle2017 for:

    Werthmüller, D., 2017, Getting started with controlled-source electromagnetic 1D modeling: The Leading Edge, 36, 352-355; doi: 10.1190/tle36040352.1.

    Contains 2 notebooks with eight frequency- and time-domain examples.

  • See article-geo2017 (in the notebooks-directory) for:

    Werthmüller, D., 2017, An open-source full 3D electromagnetic modeler for 1D VTI media in Python: empymod: Geophysics, 82(6), WB9-WB19; DOI: 10.1190/geo2016-0626.1.

    Contains:

    • Comparison to analytical solution
    • FHT filter comparison
    • GPR example
    • Time-domain example
  • See article-fdesign (in the notebooks-directory) for:

    Werthmüller, D., K. Key, and E. Slob, 2018, A tool for designing digital filters for the Hankel and Fourier transforms in potential, diffusive, and wavefield modeling: Submitted to Geophysics.

    Contains:

    • Examples regarding the design of digital filters for the Hankel and Fourier transforms
    • GPR example with a digital filter
  • See csem-ziolkowski-and-slob for:

    Ziolkowski, A., and E. Slob, 2019, Introduction to Controlled-Source Electromagnetic Methods: Cambridge University Press; ISBN 9781107058620.

    Contains all numerical examples of the book, 61 in total, frequency- and time-domain.

1. Frequency-domain examples

2. Time-domain examples

  • 2a_Time_Step-and-Impulse
    Comparison of QWE, FHT, FFTLog, and FFT for frequency-to-time transformation.

  • 2b_DC_rho-a_Dipole-Dipole
    Example of DC apparent resistivity calculation for the dipole-dipole arrangement.

  • 2c_Note_regarding_land_CSEM
    A note on how to improve the result for land CSEM (source and receiver located at the interface between air and subsurface).

  • 2d_Cole-Cole_IP
    How to define a cole-cole model to calculate IP. Work in progress, not working with stable release of empymod, branch cole-cole is required for it.

3. Comparison to analytical solution

4. Add-ons

5. Reproducing published results

  • 5a_CSEM
    So far: Constable and Weiss (2006); Ziolkowski et al. (2007).

6. Tools

  • 6a_Benchmark
    Example benchmark to check which method is best for a given problem.

  • 6b_Profiling
    Example for profiling the code.

7. Explanations and educational material