:orphan:

.. _sphx_glr_gallery_fdomain:

Frequency Domain
================

Basic examples of empymod in the frequency domain.



.. raw:: html

    <div class="sphx-glr-thumbnails">

.. thumbnail-parent-div-open

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    <div class="sphx-glr-thumbcontainer" tooltip="Comparison of the Eₓₓ-fields (in-line electric x-directed field generated by an electric x-directed source) between a">

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  .. image:: /gallery/fdomain/images/thumb/sphx_glr_dipole_vs_bipole_thumb.png
    :alt:

  :doc:`/gallery/fdomain/dipole_vs_bipole`

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      <div class="sphx-glr-thumbnail-title">Point dipole vs finite length dipole</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="Example comparison of the electric field using the complete Maxwell&#x27;s equations, and the electric field using the diffusive or quasi-static approximation.">

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  .. image:: /gallery/fdomain/images/thumb/sphx_glr_full_vs_diffusive_thumb.png
    :alt:

  :doc:`/gallery/fdomain/full_vs_diffusive`

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      <div class="sphx-glr-thumbnail-title">Full wavefield vs diffusive approximation for a fullspace</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="Profiling measurements using small sources are often analysed in terms of in-phase and quadrature readings, see, e.g., Frischknecht et al., 1991. In this method, the in-phase and quadrature components are the real and imaginary part, respectively, of the ratio of the secondary field (total field without direct wave) over the primary field (direct wave, usually the airwave). This ratio is often multiplied by a factor, and then given as, for instance, ppt (factor 1e3) or ppm (factor 1e6).">

.. only:: html

  .. image:: /gallery/fdomain/images/thumb/sphx_glr_ipandq_thumb.png
    :alt:

  :doc:`/gallery/fdomain/ipandq`

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      <div class="sphx-glr-thumbnail-title">In-phase and Quadrature</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="The magnetotelluric (MT) method is a passive method using as a source variations in Earth&#x27;s magnetic field, which create telluric currents in the Earth. The variation of Earth&#x27;s magnetic field has many origins, e.g., lightning or the interaction between the Earth&#x27;s magnetic field and solar wind.">

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  .. image:: /gallery/fdomain/images/thumb/sphx_glr_magnetotelluric_thumb.png
    :alt:

  :doc:`/gallery/fdomain/magnetotelluric`

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      <div class="sphx-glr-thumbnail-title">Magnetotelluric data</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="Even though empymod was developed having CSEM in mind, the various inputs make it possible to investigate other acquisition setups such as, for instance, line sources. The simplest way to investigate the magnetic field of line sources is by using the Biot-Savart law for an infinite wire, given by">

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  .. image:: /gallery/fdomain/images/thumb/sphx_glr_sil_biot_savart_thumb.png
    :alt:

  :doc:`/gallery/fdomain/sil_biot_savart`

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      <div class="sphx-glr-thumbnail-title">Comparison to Biot-Savart</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="A simple frequency-domain empymod example for a">

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  .. image:: /gallery/fdomain/images/thumb/sphx_glr_single_and_crossplot_thumb.png
    :alt:

  :doc:`/gallery/fdomain/single_and_crossplot`

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      <div class="sphx-glr-thumbnail-title">A simple frequency-domain example</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="Comparison of all source-receiver combinations; both electric and magnetic.">

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  .. image:: /gallery/fdomain/images/thumb/sphx_glr_src_rec_comparison_thumb.png
    :alt:

  :doc:`/gallery/fdomain/src_rec_comparison`

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      <div class="sphx-glr-thumbnail-title">Comparison of all source-receiver combinations</div>
    </div>


.. thumbnail-parent-div-close

.. raw:: html

    </div>


.. toctree::
   :hidden:

   /gallery/fdomain/dipole_vs_bipole
   /gallery/fdomain/full_vs_diffusive
   /gallery/fdomain/ipandq
   /gallery/fdomain/magnetotelluric
   /gallery/fdomain/sil_biot_savart
   /gallery/fdomain/single_and_crossplot
   /gallery/fdomain/src_rec_comparison


.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-gallery

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download all examples in Python source code: fdomain_python.zip </gallery/fdomain/fdomain_python.zip>`

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download all examples in Jupyter notebooks: fdomain_jupyter.zip </gallery/fdomain/fdomain_jupyter.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_