Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Open source software for simulations and inversions of airborne
  electromagnetic data   Inversions of airborne EM data are often an iterative process, not only
requiring that the researcher be able to explore the impact of changing
components such as the choice of regularization functional or model
parameterization, but also often requiring that forward simulations be run and
fields and fluxes visualized in order to build an understanding of the physical
processes governing what we observe in the data. In the hope of facilitating
this exploration and promoting reproducibility of geophysical simulations and
inversions, we have developed the open source software package, SimPEG. The
software has been designed to be modular and extensible with the goal of
allowing researchers to interrogate all of the components and to facilitate the
exploration of new inversion strategies. We present an overview of the software
in its application to airborne EM and demonstrate its use for visualizing
fields and fluxes in a forward simulation as well as its flexibility in
formulating and solving the inverse problem. We invert a line of airborne TDEM
data over a conductive vertical plate using a 1D voxel-inversion, a 2D voxel
inversion and a parametric inversion, where all of the forward modelling is
done on a 3D grid. The results in this paper can be reproduced by using the
provided Jupyter notebooks. The Python software can also be modified to allow
users to experiment with parameters and explore the physics of the
electromagnetics and intricacies of inversion.

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The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int