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Hopefully the segrid images show up now!
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rbeutel committed Mar 15, 2023
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5 changes: 4 additions & 1 deletion ariane.rst
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Expand Up @@ -340,6 +340,7 @@ If you're hoping to do source water analysis the ability to run backwards in Ari

``QUANTITATIVE``:
The run now starts at time = :kbd:`lmt`, so :kbd:`lmin` and :kbd:`lmax` need to be adjsuted accordingly.

* :kbd:`lmin`: Last time step to generate particles (will keep running until timestep 1 is reached just with no new particles seeded), greater than or equal to 1.
* :kbd:`lmax`: First time step to generate particles, usually=:kbd:`lmt`.

Expand All @@ -359,12 +360,14 @@ Ariane provides a couple of useful tools for defining the sections.
nedit segrid
* If you turn off text wrapping, you might see something like this:

.. figure:: images/segrid.png
.. figure:: ./segrid.png

Land points are :kbd:`#` and ocean points are :kbd:`-`.

* Add numbered cross-sections to this file. Be sure your sections are over ocean points and not land points. Ariane will initialize particles along the section labelled as :kbd:`1` and will calculate transport through all other sections. Your sections must make up a closed volume. Place the :kbd:`@` symbol somewhere within your closed subdomain.

.. figure:: ./segrid_edit.png

* Run :kbd:`mkseg`

* This will print out whether you succeeded or not and let you know the extent of the sections you defined. If something went wrong in editing :file:`segrid` the message will let you know how, this usually entails accidentally deleting a land point, not closing your boundaries, or forgetting to place the :kbd:`@` symbol somewhere!
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