GA-AEM v2.0.3-Release-20241114

v2.0.3-Release-20241114

• Revert to Makefiles instead of CMmake for Python build on linux. Plus change to pyproject.toml inplace of setup.py.

v2.0.2-Release-20240911

• Catered for deprecation of PETSC_NULL from Petsc v3.19 onward.

GA-AEM v2.0.1-Release-20240619

v2.0.1-Release-20240619

• Changed Pelton and ColeCole index for IP modelling in Matlab
• Allowed line number in column index 0 for ctlinedata* programs
• Linux script cmake_build_python_bindings.sh added for building python bindings alone
• Allow gatdaem1d.dylib as shared library name in python bindings

v2.0.0-Release-20240424

GA-AEM v2.0.0-Release-20240424

• Functionality changes to deterministic inversion program (galeisbstdem.exe)
  • Added XZ amplitude inversion functionality.
  • Added Bunch-by-bunch inversion functionality.
  • More conservative (better) line search.
  • Model parameter bounds and log-barrier constraint.
  • More sanity checks on inputs and warning log output.
  • Usability and convenience improvements.
  • Zero and null data handling (for potentially culled data).
  • Pass-through selected ancillary fields from input to output file.
  • Input ASEGGDF2 DFN, HDR and CSV headers supported.
    • Field names can be specified instead of column numbers.
    • DFN, HDR, CSV and i3 output file headers.
  • Vertical similarity/homogeneity constraints.
  • Experimental output to GA's NetCDF line data format.
  • Experimental delayed geometry inversion option.
  • Experimental cable length constraint.
• Functionality changes to stochastic inversion program (garjmcmctdem.exe).
  • Parallel tempering added.
  • NetCDF file output of probability maps for selected soundings.
• Induced polarization forward-modelling (not inversion) capability added.
  • Available in Matlab interface.
  • Available in Python interface.
• Post-processing of inversion results programs added.
  • GoCAD SGrid generation.
  • Georeferenced section generation.
  • Generation of rudimentary layer, depth slice and elevation slice grids.
  • Generation of curtain images sections for GA's EarthSci and Portal.
• CMake build system supported and traditional Makefiles deprecated.
• • For Windows users who do not wish to compile the programs themselves a package of pre-built Windows binaries are available for download from GitHub here.

Release-20160606

• Added Python 3.x interface for simple forward modelling and derivatives only.
• Added Matlab interface for simple forward modelling and derivatives only.
• Changed how the PPM normalisation is carried out. Now PPM normalisation is by directional-component-wise with respect to the maximum primary dB/dt or B-field at the receiver for a reference system geometry (which is usually estimated on a per flight or per survey basis). Previously PPM normalisation was with respect to the system geometry for the forward model being run.
• Added GEOTEM (1996 ppm system) and SPECTREM (ppm system) examples.
• Fixed a bug in the thickness derivative of the second bottom layer. This may have effected few-layer inversions, but not multi-layer fixed-thickness inversion.

Release-20160428

This is the initial public release of ga-aem on 28 April 2016.