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SPECFEM / specfem3d

SPECFEM3D_Cartesian simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra (structured or not).
GNU General Public License v3.0
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Receiver time sampling #1447

Open mrzjrbn opened 3 years ago

mrzjrbn commented 3 years ago

Hi all

Perhaps I am missing something on my parfile, but I wonder if there is a way to set a separate time step between the simulation and the seismogram's time sampling since I only need certain frequency bandwidth on my data and to reduce memory for storage.

Thank you.

EtienneBachmann commented 3 years ago

Hi,

Indeed, in specfem3d (and unlike specfem2d), there is no flag to subsample your seismograms. You can use the flag NTSTEP_BETWEEN_OUTPUT_SEISMOS to reduce the RAM use during the simulation, but currently no coded way to reduce the disk use. Best, Etienne