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

.. only:: html

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

        Click :ref:`here <sphx_glr_download_sample_data_earth_topography.py>`
        to download the full example code

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

.. _sphx_glr_sample_data_earth_topography.py:


Earth Topography
================

The topography and bathymetry of the Earth according to the ETOPO1 model
[AmanteEakins2009]_. The original model has 1 arc-minute grid spacing but here
we downsampled to 0.5 degree grid spacing to save space and download times.
Heights are referenced to sea level.

.. GENERATED FROM PYTHON SOURCE LINES 16-36



.. image:: /sample_data/images/sphx_glr_earth_topography_001.png
    :alt: Topography of the Earth (ETOPO1)
    :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none

    <xarray.Dataset>
    Dimensions:     (latitude: 361, longitude: 721)
    Coordinates:
      * longitude   (longitude) float64 -180.0 -179.5 -179.0 ... 179.0 179.5 180.0
      * latitude    (latitude) float64 -90.0 -89.5 -89.0 -88.5 ... 89.0 89.5 90.0
    Data variables:
        topography  (latitude, longitude) float64 2.762e+03 2.762e+03 ... -4.179e+03
    Attributes: (12/31)
        generating_institute:  gfz-potsdam
        generating_date:       2018/12/13
        product_type:          topography
        body:                  earth
        modelname:             etopo1-2250
        max_used_degree:       1277
        ...                    ...
        maxvalue:              5.6509528E+03 meter
        minvalue:              -8.4094822E+03 meter
        signal_wrms:           2.4872117E+03 meter
        grid_format:           long_lat_value
        attributes:            longitude latitude topography
        attributes_units:      deg. deg. meter






|

.. code-block:: default

    import matplotlib.pyplot as plt
    import cartopy.crs as ccrs
    import harmonica as hm

    # Load the topography grid
    data = hm.datasets.fetch_topography_earth()
    print(data)

    # Make a plot of data using Cartopy
    plt.figure(figsize=(10, 10))
    ax = plt.axes(projection=ccrs.Orthographic(central_longitude=-30))
    pc = data.topography.plot.pcolormesh(
        ax=ax, transform=ccrs.PlateCarree(), add_colorbar=False, cmap="terrain"
    )
    plt.colorbar(
        pc, label="meters", orientation="horizontal", aspect=50, pad=0.01, shrink=0.6
    )
    ax.set_title("Topography of the Earth (ETOPO1)")
    ax.coastlines()
    plt.show()


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

   **Total running time of the script:** ( 0 minutes  0.672 seconds)


.. _sphx_glr_download_sample_data_earth_topography.py:


.. only :: html

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



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

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



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

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


.. only:: html

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

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