[CIG-SEISMO] SPECFEM3D model creation

[Hom Nath Gharti]

Dear Dimitri,

Not a problem. Yes, please go ahead.

Thanks,
Hom Nath

On Thu, May 19, 2016, 6:00 PM Dimitri Komatitsch <komatitsch at lma.cnrs-mrs.fr>
wrote:

>
> Dear Hom Nath, dear all,
>
> Thanks! Very useful. If you do not mind I will add the content of your
> email below to the users manual.
>
> Thanks,
> Dimitri.
>
> On 18/05/2016 20:38, Hom Nath Gharti wrote:
> > Dear Aymen,
> >
> > Elevation and burial are generally applicable to geographical regions.
> > Burial is measured down from the top surface. For other problems, it
> > may be confusing. I generally follow either of the following
> > procedures for those kind of problems, which I hope is also helpful
> > for your case.
> >
> > Procedure 1:
> > =========
> > - Always put the origin on the top of the model.
> > - Let's say you want to place two receivers at (x1,y1,z1) and
> > (x2,y2,z2). Your STATIONS file should look like:
> >
> > BONE  GR  y1  x1  0.00  -z1
> > BONE  GR  y2  x2  0.00  -z2
> >
> > Depending on the geometry of the models it may not work in some cases.
> >
> > Procedure 2:
> > =========
> > - Open setup/constants.h.in file and change the line
> > logical, parameter :: USE_SOURCES_RECEIVERS_Z = .false.
> >
> > to
> >
> > logical, parameter :: USE_SOURCES_RECEIVERS_Z = .true.
> >
> > configure the package and compile.
> >
> > - Let's say you want to place two receivers at (x1,y1,z1) and
> > (x2,y2,z2). Your STATIONS file should look like:
> >
> > BONE  GR  y1  x1  0.00  z1
> > BONE  GR  y2  x2  0.00  z2
> >
> > The option set to .true. in 1 will discard the elevation and set
> > burial as the z coordinate.
> >
> > Third column is Y and Fourth is X due to the latitude/longitude
> convention.
> >
> > You can replace the station name "BONE" with any word of length less
> > than 32, and the network name "GR" with any word of length less than
> > 8.
> >
> > You can always plot OUTPUT_FILES/sr.vtk file in ParaView to check the
> > source/receiver locations after your simulation.
> >
> > Thanks,
> > Hom Nath
> >
> > On Tue, May 17, 2016 at 5:14 AM, Aymen MHENNI <aymen_mhenni at hotmail.com>
> wrote:
> >> Aymen
> > _______________________________________________
> > CIG-SEISMO mailing list
> > CIG-SEISMO at geodynamics.org
> > http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
> >
>
> --
> Dimitri Komatitsch
> CNRS Research Director (DR CNRS), Laboratory of Mechanics and Acoustics,
> UPR 7051, Marseille, France    http://komatitsch.free.fr
>
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