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jprestop committed Aug 9, 2024
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Expand Up @@ -47,7 +47,7 @@ Note that this example requires customization of the initial condition file. Fol
5. The FastEddy code will write its output to an **output** subdirectory. Create an **output** directory, if one does not already exist.
6. Run FastEddy for 1 timestep using the default state of the (*Example07_DISPERSION_SBL.in*) and required binary terrain file generated in the previous step, specified as input through the FastEddy parameter file (:code:`topoFile`). This step creates an output file *FE_DISPERSION.0* that includes the topography and establishes a terrain-following vertical coordinate grid.
7. Execute the Jupyter notebook provided in **tutorial/notebooks/Dispersion_Prep2.ipynb** to modify the surface roughness distribution over the hill. This run of the Jupyter notebook in the next step will write an *FE_DISPERSION.0* file in an **initial** subdirectory. Create an **initial** subdirectory, if one does not already exist. Users will need to set code:`path_case` in the "Modify z0 after terrain has been incorporated" section to specify the full path to and including the **Example07_DISPERSION_SBL** directory. Be sure to include the trailing slash :code:`/`.
8. Execute the Jupyter notebook provided in **/tutorial/notebooks/Dispersion_Prep3.ipynb** to create the source specification input file. Users will need to set :ode:`path_base` in the "Create the input file with AuxScalar information" section to specify the full path to and including the **Example07_DISPERSION_SBL** subdirectory. Be sure to include the trailing slash :code:`/`. This run will produce a *Example07_sources.nc* file in the **Example07_DISPERSION_SBL** subdirectory.
8. Execute the Jupyter notebook provided in **/tutorial/notebooks/Dispersion_Prep3.ipynb** to create the source specification input file. Users will need to set :code:`path_base` in the "Create the input file with AuxScalar information" section to specify the full path to and including the **Example07_DISPERSION_SBL** subdirectory. Be sure to include the trailing slash :code:`/`. This run will produce a *Example07_sources.nc* file in the **Example07_DISPERSION_SBL** subdirectory.
9. Adjust the *Example07_DISPERSION_SBL.in* file to specify the targeted initial condition file (:code:`inPath`, :code:`inFile`) by removing the :code:`#` just to the right of the equal sign to uncomment these parameters values. Uncomment the pre-formed passive tracer source file (:code:`srcAuxScFile`). Remove the value of :math:`0` and uncomment the value of :math:`2` for the number of source emissions (:code:`NhydroAuxScalars`). Run FastEddy for :math:`1` h of the simulation by changing :code:`frqOutput`, :code:`Nt`, and :code:`NtBatch` removing the values of :math:`1` for each and the (:code:`#`) to uncomment appropriate full-simulation parameters values. The emissions begin :math:`45` min into the simulation.

Two FastEddy simulation setups are provided for this tutorial, corresponding to weakly stable (*Example07_DISPERSION_SBL.in*) and convective conditions (*Example07_DISPERSION_CBL.in*). The initial condition and terrain preparation steps only need to be carried out once for the stable case, then can be reused directly in the convective stability case.
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