[aspect-devel] Trying to customize dynamic topography

[FELIPE ORELLANA ROVIROSA]

 Hi Jacqueline,

     I followed your tips somehow. It works !  Thank you !
     I get the dynamic topography output files (at each time step)
hopefully subjected to a non-zero density above. I think I had misplaced
'end' instructions, somehow the subsection dyn topo wasn't being ended
properly.

       Regarding visualization: I am using prescribed velocities at the
surface, therefore it is not free, and that's why I am using dynamic
topography. Beyond this, I don't know if visualization produces the
equivalent topography graphic output for a case like this. As of now,
running this with and without visualization of dynamic topography, I do not
see any difference in the output, nothing was added (or appended) in the
output directory. I don't know if this is sort of a bug or is because
dynamic topography does not have a proper graphic output.

cheers,
Felipe

On Sun, May 7, 2017 at 5:57 AM, Austermann, Jacqueline <
jaustermann at fas.harvard.edu> wrote:

> Hi Felipe,
>
>    i) I want to use a custom value for 'Density above', but I cannot do
> it. I have tried writing the instruction ''      set Density above = 1000
> '' at different places in the section Postprocess.
>
>    I have also tried doing it creating '' subsection Dynamic Topography
>                                                             set Density
> above = 1000      ''
>
>  or writing it as Visualization/Dynamic Topography..
>
>  I also browsed github at no avail.
>
>      where and how should this variable and instruction be properly
> written?
>
>
> The dynamic topography is calculated twice, once for the text output and
> once for the visualization output. So if you want the density above to be
> 1000 in both I believe you’ll have to do something like this in your
> parameter file:
>
> subsection Postprocess
> set List of postprocessors = dynamic topography, visualization
> subsection Dynamic Topography
> set Density above = 1000
> end
>
>    subsection Visualization
>     set List of output variables      = dynamic topography
>      subsection Dynamic Topography
>        set Density above = 1000
>      end
>    end
> end
>
> You can of course combine that with any other postprocessor. Give that a
> try.
>
>
> ii) Is there any way to prevent ASPECT from producing topography files at
> every step, and instead to force it to do it with a stride, every certain
> number of steps?
>
>
> Unfortunately, I don’t think there is an option to do that yet. You’d have
> to implement it.
>
> Hope that helps!
>
> Best,
> Jacky
>
>
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