.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_gallery/dispersion/plot_fit_ch4.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_auto_gallery_dispersion_plot_fit_ch4.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_gallery_dispersion_plot_fit_ch4.py:


Methane: the fitted model
=========================

The methane model (``fit/CH4``): two effective electronic oscillators fitted to the
Cuthbertsons' (1920) and Watson & Ramaswamy's visible dispersion (level free),
Achtermann's 633 nm and Burns et al.'s 458-633 nm values, Zhao et al.'s 1566 nm value
and Shelton's N2/CH4 ratios, with HITRAN's vibrational bands below 4500 cm^-1 fixed
(reduced chi-squared 0.68; TC-797). Shown from 240 nm to 1.4 um,
across the absorption gaps; the qualified intervals (240 to 1123 nm and the infrared
windows) are listed in :doc:`/gas_models` (TC-797).

.. GENERATED FROM PYTHON SOURCE LINES 19-22



.. image-sg:: /auto_gallery/dispersion/images/sphx_glr_plot_fit_ch4_001.svg
   :alt: CH4: fit CH4 (reduced chi2 0.68)
   :srcset: /auto_gallery/dispersion/images/sphx_glr_plot_fit_ch4_001.svg
   :class: sphx-glr-single-img





.. code-block:: Python

    from _helpers import fit_overview

    fig = fit_overview("CH4", xlim=(240e-9, 1.4e-6))


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.850 seconds)


.. _sphx_glr_download_auto_gallery_dispersion_plot_fit_ch4.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

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

      :download:`Download Jupyter notebook: plot_fit_ch4.ipynb <plot_fit_ch4.ipynb>`

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

      :download:`Download Python source code: plot_fit_ch4.py <plot_fit_ch4.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: plot_fit_ch4.zip <plot_fit_ch4.zip>`