.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "api/gallery/climate/plot_16_sea_level_budget.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_api_gallery_climate_plot_16_sea_level_budget.py>`
        to download the full example code or to run this example in your browser via JupyterLite.

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

.. _sphx_glr_api_gallery_climate_plot_16_sea_level_budget.py:


Thermal expansion and ice melt in the sea-level budget (2005)
=============================================================

By 2005, ocean temperature profiles going back to the 1950s gave the first
global estimates of thermosteric sea-level rise. Antonov, Levitus and Boyer
found about 0.33 mm per year from warming of the upper 700 m over 1955-2003. With
satellite altimetry and glacier mass balance, this made it possible to close
the budget: the observed rise should be the sum of warming water and added
meltwater. About 362 Gt of water raises the global ocean by 1 mm. The numbers
below are illustrative.

.. GENERATED FROM PYTHON SOURCE LINES 13-40



.. image-sg:: /api/gallery/climate/images/sphx_glr_plot_16_sea_level_budget_001.png
   :alt: Warming water plus added meltwater
   :srcset: /api/gallery/climate/images/sphx_glr_plot_16_sea_level_budget_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import matplotlib.pyplot as plt
    import numpy as np

    from earthsciencekit.climate import thermal_expansion_sea_level, water_equivalent_sea_level

    ocean_area, density = 3.62e14, 1000.0
    assert np.isclose(water_equivalent_sea_level(362e12, ocean_area, density), 1e-3)
    components = {
        "thermal expansion": thermal_expansion_sea_level(1.5e-4, 700, 0.2),
        "glaciers": water_equivalent_sea_level(2.5e15, ocean_area, density),
        "Greenland": water_equivalent_sea_level(1.5e15, ocean_area, density),
        "Antarctica": water_equivalent_sea_level(0.8e15, ocean_area, density),
    }
    total = sum(components.values())
    assert np.isclose(total, 0.021 + 4.8e15 / (ocean_area * density))

    fig, ax = plt.subplots()
    bottom = 0.0
    for name, value in components.items():
        ax.bar("budget", value * 1e3, bottom=bottom * 1e3, label=name)
        bottom += value
    ax.bar("sum", total * 1e3, color="0.4")
    ax.set(ylabel="sea-level rise [mm]", title="Warming water plus added meltwater")
    ax.legend()

    plt.show()


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

   **Total running time of the script:** (0 minutes 0.076 seconds)


.. _sphx_glr_download_api_gallery_climate_plot_16_sea_level_budget.py:

.. only:: html

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

    .. container:: lite-badge

      .. image:: images/jupyterlite_badge_logo.svg
        :target: ../../../lite/lab/index.html?path=api/gallery/climate/plot_16_sea_level_budget.ipynb
        :alt: Launch JupyterLite
        :width: 150 px

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

      :download:`Download Jupyter notebook: plot_16_sea_level_budget.ipynb <plot_16_sea_level_budget.ipynb>`

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

      :download:`Download Python source code: plot_16_sea_level_budget.py <plot_16_sea_level_budget.py>`

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

      :download:`Download zipped: plot_16_sea_level_budget.zip <plot_16_sea_level_budget.zip>`


.. only:: html

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

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