Fortran 77 package MODEL version 5.10

Compiling and linking programs of package MODEL

• Copy all files (or at least all *.for and *.inc files) of package FORMS into your working directory. All the files may also be extracted using pkunzip -d forms.zip or tar -xvf forms.tar
  On a computer with a very small memory (less than 16 MB), you may need to decrease array dimension MRAM in the include file ram.inc.
  It is also recommended to compile and link all programs of package FORMS according to the description in forms.htm.
• Copy all files (or at least all *.for and *.inc files) of package MODEL into your working directory. All the files including subdirectories may also be extracted using pkunzip -d model.zip or tar -xvf model.tar
• Now you may compile and link following programs of package MODEL:
  • modchk.for
  • grid.for
  • sec.for
  • intf.for
  • inv1soft.for
  • inv3.for
  • inv4.for
  All necessary subroutine files and include files are included by the Fortran 90 INCLUDE command. Fortran 77 subroutine files are included at the end of above listed files containing main programs.
  Under Unix, you may perform the above task by editing script f designed to compile and link a single file, and then running script fmod. The scripts must be made executable.
  Under MS-DOS, you may perform the above task by editing batch file f.bat designed to compile and link a single file, and then running batch file fmod.bat.

Specification of the model

The model is specified in terms of subroutines (e.g., subroutines to evaluate the values and partial derivatives of the functions describing surfaces or material parameters) and of the input data for the subroutines. Although both the subroutines and the data may be modified by a user, most of the users wish to modify only the input data, using the interpolation routines contained within the basic version of the MODEL package.

Description of input data to specify the model

Running programs of package MODEL

Main input data of each program are read from the standard input, and mostly consist of a single line containing filenames and at most few numerical parameters.

• Description of input data for MODCHK
• Description of input data for GRID
• Description of input data for SEC
• Description of input data for INTF
• Description of input data for INV1SOFT
• Description of input data for INV3
• Description of input data for INV4

List of error messages

• Package FORMS
• Package MODEL

File list of package MODEL

(A) Documentation:

model.htm (this file)

modeldoc.htm (general documentation to MODEL)

modelerr.htm (list of error messages)

(B) General subroutines dealing with blocky geological structures:

model.for

modelv.for

model.inc

(C) Sample user-defined model specification routines required for forward modelling:

metric.for

metric.inc

srfc.for

parm.for

parmv.for

val.for

valv.for

val.inc

fit.for

fitv.for

auxmod.inc

(D) Additional model specification routines related to inverse modelling:

var.for

varnul.for

spsp.for

soft.for

(E) Service routines useful to handle the model and to perform some calculations:

means.for

hpcg.for

rkgs.for

gels.for

(F) Sample application programs and routines working with the model:

modchk.for

grid.for

sec.for

sec.inc

intf.for

inv1soft.for

inv3.for

inv4.for

(G) Source code editing program:

clean.for

mod.bat

(H) Demo files:

model.dat

modchk.dat

grid.dat

gridnet.dat

sec.dat

sec-pts.dat

soft.dat

inv3.dat

len-grd.bat

fmod.bat

fmod

(I) Subdirectories with data files related to particular models:

prem

elf1

sd

slit

wb

l7

mar

u2d