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==================
Practice Exercises
==================

Welcome to the WRF Tutorial Practice Exercises!

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.. important::
   *   Complete the *Derecho HPC Computing Environment Setup* before moving to the exercises.
   *   Once your HPC environment is setup, complete the *Initial Exercise* and then the *Single Domain* case before other exercises.
   *   Save output files, as later exercises may require them.
   *   You are not required to complete all exercises; after completing the *Initial Exercise* and the *Single Domain* case, focus on those relevant to your research.
   *   Once comfortable, try the *Set-up and Run Your Own Case* exercise.
   *   Note that any command(s) included in a black code box is copyable. Hover over the right hand side of the box to reveal a "copy" icon, then click on that icon.
   *   Refer to the `WRF-ARW User's Guide <https://www2.mmm.ucar.edu/wrf/users/wrf_users_guide/build/html/index.html>`_ and `recorded lectures <https://www.youtube.com/playlist?list=PLJ_1sjucSSZCTNBRM4D3BfEak-XT7TKJo>`_, as needed.
   *   **New Unix users** should complete `this quick exercise <./unix_commands.html>`_ to become familiar with common commands.
   *   Click on teal-colored dropdown boxes throughout the exercises to access additional useful information. 

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.. seealso::
   `See the Practice Instructions presentation <https://www2.mmm.ucar.edu/wrf/wrf_tutorial_linked_files/practice_instructions.pdf>`_ for details.

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**Derecho HPC Computing Environment Setup**

Click below To set up your NSF NCAR Derecho computing environment. This is a one-time setup required after you log-in to Derecho. This is not the same as your Derecho account setup.

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* `Set up your Derecho computing environment <./derecho.html>`_

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.. _Standard Practice Exercises:

**Standard Practice Exercises**

*   `Initial Exercise <./initial_exercise.html>`_ - **Run this exercise first!**
*   `Single Domain Run <./single_domain.html>`_ - **Run this exercise second!** 
*   `Restart the Model <./restart.html>`_ 
*   `Two-way Nested Domain <./nested.html>`_ 
*   `Troubleshooting Exercise <./troubleshooting.html>`_ 
*   `Set-up and Run Your Own Case <./set_up_run_own_case.html>`_

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.. _Exercises for Specific Options:

**Exercises for Specific Options**

*   `Idealized Case <./ideal.html>`_ 
*   `Climate Simulation <./climate.html>`_ 
*   `Vortex Following <./vortex_following.html>`_ 
*   `Compute a New Diagnostic Variable <./diagnostic_variable.html>`_ 
*   `Using the Runtime I/O Option <./runtime_io.html>`_ 
*   `Output Time Series Data <./time_series.html>`_ 
*   `The Adaptive Time Step Option <./adaptive_time_step.html>`_ 
*   `Spectral Nudging <./spectral_nudging.html>`_ 
*   `The Ndown Program <./ndown.html>`_

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**Compiling the Code**

*   `WRF & WPS for Real Data Cases <./compile_wrf_real.html>`_ 
*   `WRF for Idealized Cases <./compile_ideal.html>`_

.. seealso::
   `See Compiling WRF and WPS <./compiling_tutorial/compiling_tutorial.html>`_ to compile on your own system. 








.. toctree::
   :maxdepth: 3
   :hidden:

   Derecho HPC <./derecho.rst>
   Initial Exercise <./initial_exercise.rst>
   Single Domain Run <./single_domain.rst>
   Restart the Model <./restart.rst>
   Two-way Nested Domain <./nested.rst>
   Troubleshooting Exercise <./troubleshooting.rst>
   Set-up Your Own Case <./set_up_run_own_case.rst>
   Idealized cases <./ideal.rst>
   Climate Simulation <./climate.rst>
   Vortex Following <./vortex_following.rst>
   New Diagnostic Variable <./diagnostic_variable.rst>
   Runtime I/O Option <./runtime_io.rst>
   Output Time Series Data <./time_series.rst>
   Adaptive Time Step <./adaptive_time_step.rst>
   Spectral Nudging <./spectral_nudging.rst>
   Ndown Program <./ndown.rst>
   Compile - Real Case <./compile_wrf_real.rst>
   Compile - Ideal Cases <./compile_ideal.rst>
   Graphics <./graphics.rst>

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