| Input parameter |
Description |
Units |
Limits |
| BLOCK I: TITLE |
| TITLE |
Title of run |
- |
80 ch. |
| BLOCK II: OPTIONS |
| A B C |
Output options |
- |
40 ch. |
| BLOCK III: SOURCE FREQUENCY |
| FRC,COFF,IT,VS,VR |
FRC: Center frequency of source |
Hz |
>0 |
| |
COFF: Integration contour offset |
dB/ |
COFF |
| |
IT: Source pulse type (only for option d) |
|
|
| |
VS,VR: Sou./Rec. velocity (only for option d) |
m/s |
|
| BLOCK IV: ENVIRONMENT |
| NL |
Number of layers, incl. halfspaces |
- |
NL |
| D,CC,CS,AC,AS,RO,RG,CL |
D: Depth of interface. |
m |
- |
| . |
CC: Compressional speed |
m/s |
CC |
| . |
CS: Shear speed |
m/s |
- |
| . |
AC: Compressional attenuation |
dB/ |
AC |
| . |
AS: Shear attenuation |
dB/ |
AS |
| |
RO: Density |
g/cm3 |
RO |
| |
RG: RMS value of interface roughness |
m |
- |
| |
CL: Correlation length of roughness |
m |
CL>0 |
| BLOCK V: SOURCES |
| SD,NS,DS,AN,IA,FD,DA |
SD: Source depth (mean for array) |
m |
- |
| |
NS: Number of sources in array |
- |
NS>0 |
| |
DS: Vertical source spacing |
m |
DS>0 |
| |
AN: Grazing angle of beam |
deg |
- |
| |
IA: Array type |
- |
IA |
| |
FD: Focal depth of beam |
m |
FDSD |
| |
DA: Dip angle. (Source type 4). |
deg |
- |
| BLOCK VI: RECEIVER DEPTHS |
| RD1,RD2,NRD |
RD1: Depth of first receiver |
m |
- |
| |
RD2: Depth of last receiver |
m |
RD2>RD1 |
| |
NRD: Number of receiver depths |
- |
NR>0 |
| BLOCK VII: WAVENUMBER SAMPLING |
| CMIN,CMAX |
CMIN: Minimum phase velocity |
m/s |
CMIN>0 |
| |
CMAX: Maximum phase velocity |
m/s |
- |
| NW,IC1,IC2,IF |
NW: Number of wavenumber samples |
- |
>0, -1 (auto) |
| |
IC1: First sampling point |
- |
IC1 |
| |
IC2: Last sampling point |
- |
IC2NW |
| |
IF: Freq. sample increment for kernels |
|
|
| BLOCK VIII: FREQUENCY AND RANGE SAMPLING |
| NT,FR1,FR2,DT,R1,DR,NR |
NT: Number of time samples |
|
NT=2M |
| |
FR1: lower limit of frequency band |
Hz |
|
| |
FR2: upper limit of frequency band |
Hz |
FR1 |
| |
DT: Time sampling increment |
s |
> 0 |
| |
R1: First range |
km |
|
| |
DR: Range increment |
km |
|
| |
NR: Number of ranges |
|
> 0 |
|
