.. _data:

###################
Download input data
###################

In the following chapters, you will learn how to download input data
for your GEOS-Chem simulation.

.. note::

   If you are located at an institution with several GEOS-Chem users,
   the input data for GEOS-Chem Classic may have already been
   downloaded to a shared data directory on your system. If this is
   the case for you, feel fee to skip ahead to the :ref:`Run your
   simulation  <run>` chapter.

.. toctree::
   :maxdepth: 2

   ../geos-chem-shared-docs/doc/gcid-portal-overview.rst
   ../geos-chem-shared-docs/doc/gcid-special-portals.rst
   restart-files.rst
   dry-run.rst