[CIG-SEISMO] New "Poisson Ratio warning" in Specfem3D??

[Liberman, Vladimir - 0881 - MITLL]

I recently upgraded to the latest version of SpecFem3D and now I get a new
warning in the output_solver.txt:

 

********

Model: P velocity min,max =    343.000031       1699.99988    

 Model: S velocity min,max =    0.00000000       755.000000    

 

Model: Poisson's ratio min,max =   0.377148420       1.00000000    

 

        Warning: Poisson's ratio for the solid is out of range (-1 and +1/2)

                 Please be aware that numerical solution is likely
inaccurate

********************

My mesh has both acoustic and elastic materials and they seem to be properly
recognized. So, why the new warning? The only way to get the Poisson's ratio
of 1 is for P-velocity to be zero, which is clearly not the case above.
VL

 

 

Staff  Member, Chemical, Microsystem, and Nanoscale Technologies Group
MIT Lincoln Laboratory               E-mail:  <mailto:vlad at ll.mit.edu>
vlad at ll.mit.edu
Room C-137                              Phone: 781 981 3706
244 Wood St.                            Fax:     781 981 4983
Lexington, MA 02420-9108

http://www.ll.mit.edu/mission/electronics/cmnt/bios/liberman-v.html

 

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