ELSED

  
Figure: Schematic of the ELSED problem.

The previous problem (FLUSED) is modified by including shear properties in the sediment. This problem has several interfacial modes with phase velocities below 1300 m/s which have been excluded from the calculation.

'Elastic sediment problem'
10.0
2
'NVF'
500 0.0 5000.0
    0.0 1500.0 /
 5000.0 1500.0 /
200 0.0 5100.0
 5000.0 1400.0  700.0 1.5 /
 5100.0 1400.0  700.0 1.5 /
'A' 0.0
 5100.0 4000.0 2000.0 2.0 /
1300.0 2000.0
1000.0                    ! RMAX (km)
1  500.0 /                ! NSD  SD(1:NSD)
1 2500.0 /                ! NRD  RD(1:NRD)

 KRAKEN- Elastic sediment problem
 Frequency =   10.00     NMEDIA =   2


     N2-LINEAR approximation to SSP
     Attenuation units: dB/mkHz
     VACUUM


      Z          ALPHAR     BETAR      RHO       ALPHAI     BETAI


          ( Number of pts =   500  RMS roughness =  0.000E+00 )
      0.00      1500.00      0.00     1.00       0.0000    0.0000
   5000.00      1500.00      0.00     1.00       0.0000    0.0000

          ( Number of pts =   200  RMS roughness =  0.000E+00 )
   5000.00      1400.00    700.00     1.50       0.0000    0.0000
   5100.00      1400.00    700.00     1.50       0.0000    0.0000

                                 ( RMS roughness =  0.000E+00 )
     ACOUSTO-ELASTIC half-space
   5100.00      4000.00   2000.00     2.00       0.0000    0.0000

 CLOW =   1300.0      CHIGH =   2000.0    
 RMAX =    1000.000000000000    

 Number of sources   =            1
   500.0000    

 Number of receivers =            1
   2500.000    

 Mesh multiplier   CPU seconds
        1             23.9    
        2             38.2    

    I           K                ALPHA         PHASE SPEED
    1   0.4271788618E-01   0.0000000000E+00    1470.855857    
    2   0.4188323798E-01   0.0000000000E+00    1500.167038    
    3   0.4186924441E-01   0.0000000000E+00    1500.668425    
    4   0.4184591718E-01   0.0000000000E+00    1501.504981    
    5   0.4181324891E-01   0.0000000000E+00    1502.678091    
    6   0.4177122866E-01   0.0000000000E+00    1504.189728    
    7   0.4171984138E-01   0.0000000000E+00    1506.042473    
    8   0.4165906753E-01   0.0000000000E+00    1508.239545    
    9   0.4158888289E-01   0.0000000000E+00    1510.784823    
   10   0.4150925843E-01   0.0000000000E+00    1513.682861    
   11   0.4142016032E-01   0.0000000000E+00    1516.938916    
   12   0.4132155011E-01   0.0000000000E+00    1520.558955    
   13   0.4121338489E-01   0.0000000000E+00    1524.549688    
   14   0.4109561752E-01   0.0000000000E+00    1528.918577    
   15   0.4096819680E-01   0.0000000000E+00    1533.673873    
   16   0.4083106766E-01   0.0000000000E+00    1538.824642    
   17   0.4068417123E-01   0.0000000000E+00    1544.380804    
   18   0.4052744476E-01   0.0000000000E+00    1550.353185    
   19   0.4036082144E-01   0.0000000000E+00    1556.753575    
   20   0.4018422979E-01   0.0000000000E+00    1563.594808    
   21   0.3999759286E-01   0.0000000000E+00    1570.890861    
   22   0.3980082677E-01   0.0000000000E+00    1578.656982    
   23   0.3959383877E-01   0.0000000000E+00    1586.909858    
   24   0.3937652458E-01   0.0000000000E+00    1595.667818    
   25   0.3914876508E-01   0.0000000000E+00    1604.951087    
   26   0.3891042253E-01   0.0000000000E+00    1614.782081    
   27   0.3866133664E-01   0.0000000000E+00    1625.185742    
   28   0.3840132111E-01   0.0000000000E+00    1636.189883    
   29   0.3813016132E-01   0.0000000000E+00    1647.825524    
   30   0.3784761400E-01   0.0000000000E+00    1660.127190    
   31   0.3755340932E-01   0.0000000000E+00    1673.133125    
   32   0.3724725578E-01   0.0000000000E+00    1686.885430    
   33   0.3692884747E-01   0.0000000000E+00    1701.430111    
   34   0.3659787314E-01   0.0000000000E+00    1716.817063    
   35   0.3625402627E-01   0.0000000000E+00    1733.100004    
   36   0.3589701555E-01   0.0000000000E+00    1750.336403    
   37   0.3552657515E-01   0.0000000000E+00    1768.587397    
   38   0.3514247440E-01   0.0000000000E+00    1787.917730    
   39   0.3474452577E-01   0.0000000000E+00    1808.395759    
   40   0.3433258869E-01   0.0000000000E+00    1830.093665    
   41   0.3390656461E-01   0.0000000000E+00    1853.088150    
   42   0.3346637756E-01   0.0000000000E+00    1877.462028    
   43   0.3301194133E-01   0.0000000000E+00    1903.306820    
   44   0.3254315545E-01   0.0000000000E+00    1930.724056    
   45   0.3206016806E-01   0.0000000000E+00    1959.810471    
   46   0.3156608684E-01   0.0000000000E+00    1990.485973

  
Figure: Transmission loss for the ELSED problem.