MAKE_MECH_PROP_CASE_038.f90

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!    Copyright (C) 2012 The SPEED FOUNDATION
!    Author: Ilario Mazzieri
!
!    This file is part of SPEED.
!
!    SPEED is free software; you can redistribute it and/or modify it
!    under the terms of the GNU Affero General Public License as
!    published by the Free Software Foundation, either version 3 of the
!    License, or (at your option) any later version.
!
!    SPEED is distributed in the hope that it will be useful, but
!    WITHOUT ANY WARRANTY; without even the implied warranty of
!    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
!    Affero General Public License for more details.
!
!    You should have received a copy of the GNU Affero General Public License
!    along with SPEED.  If not, see <http://www.gnu.org/licenses/>.
 
 
 
 
 
     subroutine make_mech_prop_case_038(rho, lambda, mu, gamma, qs, qp, & !outputs
                                        xs, ys, zs, Depth, zs_all,&
                                        vs30, thickness, sub_tag_all)
              
     real*8, intent(out) :: rho, lambda, mu, gamma, qs, qp
     real*8, intent(in)  :: xs, ys, zs, depth, zs_all,&
                            vs30, thickness, sub_tag_all                
     real*8              :: ni, vs, vp, depth_real
     real*8              :: vs_ini, vs_fin, z_ini, z_fin, vp_ini, vp_fin, rho_ini, rho_fin
              
     rho    = 0.d0;
     lambda = 0.d0;
     mu     = 0.d0;
     gamma  = 0.d0;
     qs     = 0.d0;
     qp     = 0.d0
     
     if ((depth .ge. 0.0d0).and.(zs_all .ge. 0.0d0)) then    
                 
     ! + MATERIAL INSIDE THE BASIN 
     
                  z_ini=0
          z_fin=500
          
          vs_ini=300
          vs_fin=1500
          vs=vs_ini+(vs_fin-vs_ini)*((depth-z_ini)/(z_fin-z_ini))**(1/2)
          
          vp_ini=550
          vp_fin=2300
          vp=vp_ini+(vp_fin-vp_ini)*((depth-z_ini)/(z_fin-z_ini))**(1/2)
          
          rho = 1950   
                 
          lambda = rho * (vp**2 - 2*vs**2)            
          mu = rho * vs**2  
          qs = vs/10
          gamma = (3.1415*1.0)/qs
                                  
     else
     ! + MATERIAL INSIDE THE BEDROCK - FIRST LAYER OF CRUSTAL MODEL
     ! Depth_real = zs
 
         vs = 2100
         vp  = 3400
         rho =  2000         
         lambda = rho * (vp**2 - 2*vs**2)            
         mu = rho * vs**2  
         qs = 200
         gamma = (3.1415*1.0)/qs  
         
     endif
   
     
     
     
     end subroutine make_mech_prop_case_038