Input parameters

List of input parameters of packages FORMS, MODEL, CRT, FD, NET and DATA

A11='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for.
A12='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
A13='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
A21='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
A22='string': Name of an output file.; Used by: fd2d.for, modfd.for.
A23='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
A31='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
A32='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
A33='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for.
A44=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
AA12='string': Name of an output file.; Used by: newpar.for.
AA13='string': Name of an output file.; Used by: newpar.for.
AA23='string': Name of an output file.; Used by: newpar.for.
ABIG=nonnegative real: Parameter controlling the wavenumber cosine filter.; Used by: grdcor.for.
ACOR=positive real: Von Karman correlation length.; Used by: grdckn.for, grdcor.for, grdran2d.for.
ACORG=nonnegative real: Gaussian correlation length.; Used by: grdcor.for, grdran2d.for.
ADVANC=real: Distance to shift an initial point of a ray.; Used by: crtin.for.
AI0=real, AI1=real, AI2=real, AI3=real, AI11=real, AI12=real, AI22=real, AI13=real, AI23=real, AI33=real, AI111=real, AI112=real, AI122=real, AI222=real, AI113=real, AI123=real, AI223=real, AI133=real, AI233=real, AI333=real: Imaginary part of amplitude of a complex function and its derivatives.; Used by: grdte.for.
ALEMAX=real: Maximum angle for the frame with Lyapunov exponents.; Used by: modle2d.for.
ALEMIN=real: Minimum angle for the frame with Lyapunov exponents.; Used by: modle2d.for.
AMAX=nonnegative real: Maximum wavelength.; Used by: grdcor.for.
AMBIENT=real: Intensity of the ambient light.; Used by: iniwrl.for, srfwrl.for.
AMIN=nonnegative real: Minimum wavelength.; Used by: grdcor.for.
AMP='string': Name of the output file to contain the grid values of the norm of the vectorial amplitude of the Green function.; Used by: mtt.for.
AMP2D1=real,
AMP2D2=real,
AMP2D3=real: Unit vector perpendicular to a 2-D section in the 3-D model for calculating the 2-D Green function.; Used by: mtt.for.
AMPKI='string': Name of the file with the grid values of the amplitude modified for use in the Kirchoff integral.; Used by: mtt.for.
AMPKI1=real,
AMPKI2=real,
AMPKI3=real: Unit vector perpendicular to the surface of integration. for the Kirchhoff integral.; Used by: mtt.for.
AMPMAX=real: Maximum value of the amplitude of the Green function.; Used by: mtt.for, wfsrf.for.
AMPR11='string', AMPI11='string', AMPR21='string', AMPI21='string', AMPR31='string', AMPI31='string', AMPR12='string', AMPI12='string', AMPR22='string', AMPI22='string', AMPR32='string', AMPI32='string', AMPR13='string', AMPI13='string', AMPR23='string', AMPI23='string', AMPR33='string', AMPI33='string': Names of the files with the vectorial amplitudes of the Green function.; Used by: mtt.for.
ANIDEG=real: Rotation angle.; Used by: anirot.for.
ANIDER='string': Name of the input file containing the density-reduced stiffness tensor and its first-order and second-order spatial derivatives.; Used by: hdertest.for.
ANIE1=real, ANIE2=real, ANIE3=real: Axial vector of the rotation.; Used by: anirot.for.
ANIIN='string': Name of the input file of program 'anirot.for'.; Used by: anirot.for.
ANIMOD='string': Name of the input file with elastic moduli.; Used by: anisrf.for, tiaxis.for.
ANIOUT='string': Name of the output file of program 'anirot.for'.; Used by: anirot.for.
ANISTRE='string': Name of the output file with anisotropy strength.; Used by: anisrf.for.
ANITI='string': Name of the output file of program 'tiaxis.for'.; Used by: tiaxis.for.
ANRTIM1='string', ANRTIM2='string': Name of the output file of program 'anray.for'.; Used by: watable.for.
AR0=real, AR1=real, AR2=real, AR3=real, AR11=real, AR12=real, AR22=real, AR13=real, AR23=real, AR33=real, AR111=real, AR112=real, AR122=real, AR222=real, AR113=real, AR123=real, AR223=real, AR133=real, AR233=real, AR333=real: Real part of amplitude of a complex function and its derivatives.; Used by: grdte.for.
ASIZE=integer: Size of points (atoms) in GOCAD.; Used by: ptswrl.for.
ASMALL=nonnegative real: Parameter controlling the wavenumber cosine filter.; Used by: grdcor.for.
ASOB=positive real: Parameter controlling the wavenumber filter corresponding to smoothing with Sobolev scalar product.; Used by: grdcor.for.
ASYMB='string': Name of the GOCAD symbol used for plotting the points.; Used by: ptswrl.for.
AUR1='string', AUR2='string', AUR3='string': Names of the files with real part of the amplitudes.; Used by: grdborn.for.
AUI1='string', AUI2='string', AUI3='string': Names of the files with imaginary part of the amplitudes.; Used by: grdborn.for.
B=real: Content of blue in the colour of background.; Used by: grdps.for, iniwrl.for, trglps.for.; Content of blue in the colour of lines.; Used by: linwrl.for,; Content of blue in the colour of points.; Used by: ptswrl.for,; Content of blue in the colour of surfaces.; Used by: srfwrl.for,
B11='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for.
B12='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
B13='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
B21='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
B22='string': Name of an output file.; Used by: fd2d.for, modfd.for.
B23='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
B31='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
B32='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
B33='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for.
BB12='string': Name of an output file.; Used by: newpar.for.
BB13='string': Name of an output file.; Used by: newpar.for.
BB23='string': Name of an output file.; Used by: newpar.for.
BORN='string': Name of the file with the names of the files with the quantities required for the Born approximation.; Used by: grdborn.for.
C11='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for.
C12='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
C13='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
C21='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
C22='string': Name of an output file.; Used by: fd2d.for, modfd.for.
C23='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
C31='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
C32='string': Name of an output file.; Used by: fd2d.for, modfd.for, newpar.for.
C33='string': Name of an output file.; Used by: fd2d.for, fdmod.for, modfd.for.
CAL='string': Name of the file with commands.; Used by: grdcal.for.
CALCOPS='string': Text to be written to the 'Setup' section of a PostScript file.; Used by: pictures.for, rpplot.for, sp.for, ss.for.
CAMERA='string': Name of the file with cameras.; Used by: iniwrl.for.
CC12='string': Name of an output file.; Used by: newpar.for.
CC13='string': Name of an output file.; Used by: newpar.for.
CC23='string': Name of an output file.; Used by: newpar.for.
CKNMAX=real: Maximum value of a correlation function.; Used by: grdckn.for.
CKNOUT='string': Name of the file with a correlation function.; Used by: grdckn.for.
CNAME='string': Prefix of the name of shifted points.; Used by: srp.for.
CODE='string': Name of the file with codes of elementary waves.; Used by: crtin.for.
COEF1=integer, COEF2=integer: Coefficients of linear combination.; Used by: matlin.for.
COEF1=integer to COEF#=integer: Coefficients of linear combination.; Used by: gsecal.for.
COLORS='string': Name of the file with a colour map.; Used by: grdwrl.for, linwrl.for, ptswrl.for, rpplot.for, srfwrl.for, trglps.for.
COLUMN01='string' to COLUMN69='string': String to specify the quantity to be written to the corresponding column of the output file.; Used by: modsrf.for, mtt.for, wfsrf.for.
COROUT='string': Name of the output file with correlation function.; Used by: grdcor.for.
CPAR1=real: Configuration parameter.; Used by: srp.for.
CPAR2=real: Configuration parameter.; Used by: srp.for.
CREF=real: Reference colour.; Used by: grdps.for, grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
CREF1=real: Reference colour for multidimensional colour maps.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
CREF2=real: Reference colour for multidimensional colour maps.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
CREF3=real: Reference colour for multidimensional colour maps.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
CRTANI=real: Switch to anisotropic ray tracing.; Used by: crtin.for, crtpfa.for, green.for.
CRTLOG='string': Name of the output log file.; Used by: crtin.for.
CRTNEW='string': Name of the file with the names of the new CRT-like output files.; Used by: crt2d3d.for, crtpfa.for.
CRTOUT='string': Name of the file with the names of the CRT output files.; Used by: crt2d3d.for, crtlew.for, crtpfa.for, crtpts.for, crtray.for, green.for, invtt.for, mtt.for, pfatubes.for, rpplot.for, wfsrf.for. Verbose option of the CRT program, enabling to select various levels of screen output.
CRTPAUSE=integer: Parameter to control screen output.; Used by: crtin.for.
CRTSCRO='string': Verbose option of the CRT program, enabling to select various levels of screen output.; Used by: crtin.for.
CSWIN=real, CSWIN1=real, CSWIN2=real, CSWIN3=real, CSWIN4=real, CSWIN5=real, CSWIN6=real: Parmeters for cosine window.; Used by: grdborn.for.
CTYPE='string': String specifying the correlation function.; Used by: grdran2d.for.
D1=positive real: Grid spacing along the X1 axis.; Used by: grdran2d.for.
D1=real: Grid spacing along the X1 axis.; Used by: fd2d.for, fdmod.for, grdborn.for, grdckn.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdiso.for, grdnew.for, grdnorm.for, grdpts.for, grdte.for, grdwrl.for, invpts.for, modfd.for, modsrf.for, mtt.for, net.for, ptsgrd.for, sgfgrd.for, sgfmat.for.
D10=real: Grid spacing along the X1 axis.; Used by: grdte.for.
D1NEW=real: Grid spacing along the X1 axis for the output grid.; Used by: grdnew.for, grdnorm.for.
D1OUT=real: Grid spacing along the X1 axis for the output grid.; Used by: grdfft.for.
D2=positive real: Grid spacing along the X2 axis.; Used by: grdran2d.for.
D2=real: Grid spacing along the X2 axis.; Used by: grdborn.for, grdckn.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdiso.for, grdnew.for, grdnorm.for, grdpts.for, grdte.for, grdwrl.for, invpts.for, modfd.for, modsrf.for, mtt.for, net.for, ptsgrd.for, sgfgrd.for, sgfmat.for.
D20=real: Grid spacing along the X2 axis.; Used by: grdte.for.
D2NEW=real: Grid spacing along the X2 axis for the output grid.; Used by: grdnew.for, grdnorm.for.
D2OUT=real: Grid spacing along the X2 axis for the output grid.; Used by: grdfft.for.
D3=real: Grid spacing along the X3 axis.; Used by: fd2d.for, fdmod.for, grd2d3d.for, grdborn.for, grdckn.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdiso.for, grdnew.for, grdnorm.for, grdpts.for, grdte.for, grdwrl.for, invpts.for, modfd.for, modsrf.for, mtt.for, net.for, ptsgrd.for, sgfgrd.for, sgfmat.for.
D30=real: Grid spacing along the X3 axis.; Used by: grdte.for.
D3NEW=real: Grid spacing along the X3 axis for the output grid.; Used by: grdnew.for, grdnorm.for.
D3OUT=real: Grid spacing along the X3 axis for the output grid.; Used by: grdfft.for.
D4=real: Time interval.; Used by: fd2d.for, grdnorm.for, grdps.for.
D4NEW=real: Time interval for the output grid.; Used by: grdnorm.for.
DA=real: Angular step.; Used by: crtlew.for, modle2d.for.
DCRT='string': Name of the file with input data for complete ray tracing.; Used by: crtin.for.
DEGREE=real: Degree of the homogeneous Hamiltonian to be arithmetically averaged for common S-wave ray tracing.; Used by: crtin.for, crtpfa.for, green.for, hder.for.
DEN='string': Name of the output file with gridded densities.; Used by: fd2d.for, fdmod.for, modfd.for.
DER=real: Order of derivative.; Used by: ss.for.
DEVEXP=positive real: Exponent for the renormalization to the maximum deviation from the mean value.; Used by: grdran2d.for, grdstat.for.
DEVMAX=positive real: Maximum deviation from the mean value.; Used by: grdran2d.for, grdstat.for.
DF=real: Frequency step.; Used by: grdborn.for, green.for, greenss.for, greentc.for, tcgreen.for.
DIST=real: Distance.; Used by: invtt.for.
DLIGHT='string': Name of the file with directional lights.; Used by: iniwrl.for.
DM1='string': Name of the file with a diagonal matrix.; Used by: invpts.for, invtt.for, smeigen.for.
DP=real: Step in slowness vector.; Used by: hdertest.for.
DPAR1=real: Increment of the first ray take-off parameter.; Used by: mtt.for, wfsrf.for.
DPAR2=real: Increment of the second ray take-off parameter.; Used by: mtt.for, wfsrf.for.
DSD=positive real: Desired standard deviation.; Used by: grdran2d.for, grdstat.for.
DSEIS=real: Sampling interval of a seismogram stored in a grid file.; Used by: grdmigr.for.
DSRC=real: Distance between two source points for numerical calculation of point-source geometrical spreading from slowness vectors.; Used by: q2.cal.
DSWAVE=real: Minimum relative difference between the S-wave eigenvalues.; Used by subroutine file hder.for,; called by programs: crt.for, crtpfa.for, green.for.
DT=real: Time step.; Used by: grdborn.for, green.for, greenss.for, ss.for, gsecal.for.
DTFD=real: Time step for finite differences.; Used by: fd2d.for.
DTIME=real: Two-way travel-time increment.; Used by: mtt.for, wfsrf.for.
DTT=real: Travel-time increment.; Used by: mtt.for, wfsrf.for.
DX=real: Step in spatial coordinates.; Used by: hdertest.for.
DX1=real: The X1 component of the translation vector.; Used by: crt2d3d.for.
DX2=real: The X2 component of the translation vector.; Used by: crt2d3d.for.
DX3=real: The X3 component of the translation vector.; Used by: crt2d3d.for.
EIGLST='string': Name of the optional output file containing eigenvectors.; Used by: green.for.
EPSILON=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
ERRMUL=real: Multiplication factor for the standard deviations.; Used by: invpts.for,
ERRQI=real: Maximum error of the quasi-isotropic projection of the polarization vectors.; Used by: green.for.
ERRSRF=real: Upper error bound in the position of points at interfaces.; Used by: modsrf.for.
ERRWAN=real: Upper error bound in the propagator matrix.; Used by: crtpfa.for, green.for.
ESIZE=integer: Number of bytes per a real in binary files.; Used by: ascbin.for, binasc.for, swap.for.
FACTOR=real: Brightness factor.; Used by: pallet.for.
FDMOD='string': Name of the file describing a 2-D model composed of homogeneous convex polygons.; Used by: fdmod.for.
FFT=real: Multiplicative factor for FFT.; Used by: grdfft.for.
FFTINI='string': Name of the file with imaginary part of the input function.; Used by: grdfft.for.
FFTINR='string': Name of the file with real part of the input function.; Used by: grdfft.for.
FFTOUTI='string': Name of the file with imaginary part of the output function.; Used by: grdfft.for.
FFTOUTR='string': Name of the file with real part of the output function.; Used by: grdfft.for.
FGBE11='string'
FGBE21='string'
FGBE31='string'
FGBE12='string'
FGBE22='string'
FGBE32='string': Filenames of the files corresponding to GBE11, GBE21, GBE31, GBE12, GBE22 and GBE32.; Used by: mtt.for, wfsrf.for.
FGBR11='string'
FGBR12='string'
FGBR22='string': Filenames of the files corresponding to GBR11, GBR12, GBR22.; Used by: mtt.for, wfsrf.for.
FGBY11='string'
FGBY22='string': Filenames of the files corresponding to GBY11 and GBY22.; Used by: mtt.for, wfsrf.for.
FHIGH=real: Parameter controlling the frequency cosine filter.; Used by: ss.for.
FISEGY='string': Name of the output SEGY file.; Used by: gse2segy.for.
FLOW=real: Parameter controlling the frequency cosine filter.; Used by: ss.for.
FMAX=real: Maximum frequency.; Used by: grdborn.for, green.for, greenss.for, ss.for.
FMIN=real: Minimum frequency.; Used by: grdborn.for, green.for, greenss.for, ss.for.
FORM='string': Form of a file.; Used by: fd2d.for, fdmod.for, modfd.for, newpar.for.
FORMM='string': Form of files with matrices.; Used by: grdcal.for, invpts.for, invsoft.for, invtt.for, matfun.for, matinv.for, matlin.for, matmul.for, sgfgrd.for, sgfmat.for, smeigen.for, smpower.for.
FREESRF=real: Switch to decide about the polygons in free space.; Used by: modsrf.for.
FREF=nonnegative real: Reference frequency for the attenuation.; Used by: greenss.for.
FSTAB='string': Name of the output file with the information on memory required to store forward stars.; Used by: net.for.
FTIME='string': Name of the file containing two-way travel time.; Used by: mtt.for, wfsrf.for.
FTRGL1='string'
FTRGL2='string': Name of the file 'CRT-T' with triangles.; Used by: pfatubes.for.
FTT='string': Name of the data file with the field travel times.; Used by: invtt.for, sp.for.
G=real: Content of green in the colour of background.; Used by: grdps.for, iniwrl.for, trglps.for.; Content of green in the colour of lines.; Used by: linwrl.for,; Content of green in the colour of points.; Used by: ptswrl.for,; Content of green in the colour of surfaces.; Used by: srfwrl.for,
GAMMA=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
GBE11=real
GBE21=real
GBE31=real
GBE12=real
GBE22=real
GBE32=real: Components of two vectors specifying the plane and coordinates for the initial second derivatives of the complex-valued travel times of Gaussian beams.; Used by: mtt.for, wfsrf.for.
GBR11=real
GBR12=real
GBR22=real: Real part of the second derivatives of the complex-valued travel times of Gaussian beams in the directions of the given vectors.; Used by: mtt.for, wfsrf.for.
GBW1='string'
GBW2='string': Names of the output files to contain the grid values of the square roots of two components of the sum of squares of Gaussian beam widths.; Used by: mtt.for.
GBW11='string'
GBW22='string': Names of the output files to contain the grid values of two components of the sum of squares of Gaussian beam widths.; Used by: mtt.for.
GBY11=real
GBY22=real: Imaginary part of the second derivatives of the complex-valued travel times of Gaussian beams in the directions of the given vectors.; Used by: mtt.for, wfsrf.for.
GM1='string': Name of the file with a general matrix.; Used by: invpts.for, invtt.for, smeigen.for.
GM2='string': Name of the file with a general matrix.; Used by: invpts.for, invtt.for.
GM3='string': Name of the file with a general matrix.; Used by: invpts.for, invtt.for.
GNORM=real: Exponent for the normalization.; Used by: grdnorm.for.
GRD='string': Name of the file with gridded values.; Used by: ascbin.for, binasc.for, grd2d3d.for, grdfd.for, grdiso.for, grdnew.for, grdnorm.for, grdps.for, grdpts.for, grdran2d.for, grdtrans.for, grdwrl.for, invpts.for, mgrd.for, mttgrd.for, sgfgrd.for, sgfmat.for.
GRD1='string': Name of the file with gridded values.; Used by: grdcal.for, grdcros.for, grdgse.for, grdfd.for, grdmerge.for, grdpts.for.
GRD11='string': Name of the file with gridded second derivatives.; Used by: grdfd.for.
GRD2='string': Name of the file with gridded values.; Used by: grdcal.for, grdcros.for, grdgse.for, grdfd.for, grdmerge.for, grdpts.for.
GRD22='string': Name of the file with gridded second derivatives.; Used by: grdfd.for.
GRD3='string': Name of the file with gridded values.; Used by: grdcal.for, grdcros.for, grdgse.for, grdfd.for, grdmerge.for, grdpts.for.
GRD33='string': Name of the file with gridded second derivatives.; Used by: grdfd.for.
GRD4='string': Name of the file with gridded values.; Used by: grdcal.for, grdcros.for, grdmerge.for, grdpts.for.
GRD5='string': Name of the file with gridded values.; Used by: grdcal.for, grdpts.for.
GRD6='string': Name of the file with gridded values.; Used by: grdcal.for, grdpts.for.
GRD7='string': Name of the file with gridded values.; Used by: grdcal.for, grdpts.for.
GRD8='string': Name of the file with gridded values.; Used by: grdcal.for, grdpts.for.
GRD9='string': Name of the file with gridded values.; Used by: grdcal.for, grdpts.for.
GRDCALNUM='string': Name of the file with numbers of values at gridpoints.; Used by: grdcal.for.; Note that parameter GRDCALNUM of program grdcal.for is equivalent to parameter NUM of some other programs.
GRDMIGR='string': Name of the ASCII file containing the grid values of the migrated image.; Used by: grdmigr.for.
GRDERR='string': Name of the file with gridded standard deviations.; Used by: invpts.for.
GRDICB='string': Name of the file with gridded indices of the complex blocks.; Used by: invpts.for.
GRDNEW='string': Name of the output file with gridded values.; Used by: grd2d3d.for, grdnew.for, grdnorm.for, grdtrans.for.
GRDPS2='string' to GRDPS9='string': Names of the files with gridded values.; Used by: grdps.for.
GRDSEIS='string': Name of the input ASCII grid file with seismograms for Kirchhoff migration.; Used by: grdmigr.for.
GRDTEI='string', GRDTER='string': Names of the files with gridded functional values.; Used by: grdte.for.
GREEN='string': Name of the file with the Green tensor.; Used by: green.for, greenmul.for, greenss.for, greentc.for, greenti.for.
GREEN1='string', GREEN2='string': Name of the file with the Green tensor.; Used by: greenti.for.
GREENAMP=real: Multiplicative factor.; Used by: greenmul.for.
GREENMUL='string': Name of the file with the Green tensor.; Used by: greenmul.for.
GREENTC='string': Name of the file with the Green tensor.; Used by: greentc.for, tccomp.for, tcfd.for.
GREENTC2='string': Name of the file with the Green tensor.; Used by: tccomp.for.
GREENTI='string': Name of the file containing information on input Green tensors.; Used by: greenti.for.
GSEWIDTH=positive integer: Width of the output field for one integer value of a seismogram.; Used by: grdgse.for, greenss.for, gsecal.for, ss.for.
HDERTEST='string': Name of the output file of program HDERTEST.; Used by: hdertest.for.
HEIGHT=real: Height of the paper in a portrait position.; Used by: grdps.for, trglps.for.
HILB=real: Order of Hilbert transform.; Used by: ss.for.
HIST='string': Name of the file with the ray histories.; Used by: mttgrd.for.
HOFFSET=real: Distance from the leftmost paper edge.; Used by: grdps.for, trglps.for.
HRAUX=real: Height (in cm) of symbols for auxiliary rays.; Used by: rpplot.for.
HRBAS=real: Height (in cm) of symbols for basic rays.; Used by: rpplot.for.
HREC=real: Height (in cm) of symbols for receivers.; Used by: rpplot.for.
HRTWO=real: Height (in cm) of symbols for two-point rays.; Used by: rpplot.for.
HSIZE=real: Horizontal size of the image.; Used by: grdps.for, rpplot.for, trglps.for.
HTEXT=real: Height (in cm) of texts.; Used by: rpplot.for.
ICB='string': Name of the file with gridded indices of the complex blocks.; Used by: grid.for.
ICB=integer: Index of a wave.; Used by: hdertest.for.
ICBEXT=integer: Switch to decide which complex block is to be gridded.; Used by: grid.for.
ICDPF=integer: CDP fold.; Used by: gse2segy.for.
ICLASS=integer: Class of model parameters to be inverted.; Used by: invpts.for, invsoft.for, invtt.for, modmod.for.
ICREC=positive integer: Index of the colour to plot the receivers.; Used by: rpplot.for.
ICRT=positive integer: Sequential index of the execution of program 'crt.for'.; Used by: mtt.for, wfsrf.for.
ICTWO=integer: Index of colour for two-point rays.; Used by: rpplot.for.
IHIST=integer: Switch to decide whether symbols correspondingto the ray histories are to be plotted to the figure legend.; Used by: rpplot.for.
IMGRD=integer: Switch to decide whether "snapshots" are to be stored in separate files.; Used by: mgrd.for, mttgrd.for.
IN='string': Name of an unformatted file with gridded values.; Used by: ascbin.for, binasc.for, grdwrl.for, swap.for.
IND='string': Name of the index file.; Used by: grid.for.
INDFUN=integer: Index of the surface or of the complex block.; Used by: invpts.for.
INVSRC='string': Name of the file with the names of source points.; Used by: invtt.for, srcsrc.for.
INIDIM=integer: Dimensionality of the source.; Used by: crtin.for.
INIDIR=integer: Switch between global rotation vector and source-specific vectors.; Used by: crtin.for.
INIE1=real, INIE2=real, INIE3=real: Three components of the optional rotation vector describing the rotation of the local Cartesian basis vectors.; Used by: crtin.for.
INIPAR=integer: Parametrization of the rays.; Used by: crtin.for.
INIT='string': Name of the file with the data specifying the line or surface initial conditions for rays.; Used by: crtin.for.
INORM=integer: Type of the norm.; Used by: tccomp.for.
INTF='string': Name of the file containing the points situated at interface(s).; Used by: intf.for.
INTFOUT='string': Name of the output file with functional values.; Used by: intf.for.
INVLOG='string': Output log file.; Used by: invtt.for.
IRAUX=integer: Switch to decide whether auxiliary rays are to be plotted.; Used by: rpplot.for.
IRBAS=integer: Switch to decide whether basic rays are to be plotted.; Used by: rpplot.for.
IREC=positive integer: Index of the receiver.; Used by: grdborn.for, grdmigr.for.
IRTWO=integer: Switch to decide whether two-point rays are to be plotted.; Used by: rpplot.for.
ISANG=integer: Switch to decide whether ray domain or reference surface is to be plotted.; Used by: rpplot.for.
ISEED=integer: Seed for the generation of pseudorandom numbers.; Used by: grdran.for, grdran2d.for.
ISFORM=integer: Data sample format code.; Used by: gse2segy.for.
ISHP=integer: Switch to decide whether objects of all histories or of a single history are to be plotted.; Used by: rpplot.for.
ISORT=integer, ISORT1=integer: Sorting switches.; Used by: green.for, greenti.for.
ISRC=positive integer: Index of the source.; Used by: grdborn.for, grdmigr.for.
ISRCS=nonnegative integer: Index of the source.; Used by: rpplot.for.
ISREC=positive integer: Index of symbols for plotting the receivers.; Used by: rpplot.for.
ISRF=integer: Switch to decide whether material parameters or function describing surface will be gridded.; Used by: grid.for.
ISUC=integer: Switch to specify whether all histories or successful histories only are to be plotted in colours.; Used by: rpplot.for.
ITHOM=integer: Switch to decide whether homogeneous triangles will be plotted.; Used by: rpplot.for.
IVALUE01=integer to IVALUE69=integer: Integer value required for some special cases of COLUMNii.; Used by: modsrf.for, wfsrf.for.
IWAVES=nonnegative integer: Index of the elementary wave.; Used by: rpplot.for.
KALL=integer: Switch between all rays and two-point rays only.; Used by: crtlew.for, crtpts.for, crtray.for.
KAPPA=real: Multiplicative factor.; Used by: grdckn.for, grdcor.for.
KEXP=real: Exponent of the cosine filter.; Used by: grdcros.for, ss.for.
KMAHI=integer: Switch to exclude the KMAH index from the ray history.; Used by subroutine file rpar.for,; called by program: crt.for.
KODESP=integer: Switch for the description of plots with seismograms.; Used by: sp.for.
KOLERR=integer: Column containing the standard deviations.; Used by: invpts.for.
KOLFUN=integer: Column containing the index of the function or of the complex block.; Used by: invpts.for.
KOLLIN=integer: Column containing the colours for lines.; Used by: linwrl.for.
KOLNEG=integer: Column containing the colours for the negative sides of interfaces.; Used by: srfwrl.for.
KOLOR=positive integer: Index of colour to plot seismograms.; Used by: sp.for.
KOLOR1=positive integer to KOLOR#=positive integer: Indices of colours to plot seismograms.; Used by: sp.for.
KOLORTT=positive integer: Index of colour to plot travel times.; Used by: sp.for.
KOLORTD=positive integer: Index of colour to plot the error bar.; Used by: sp.for.
KOLPOS=integer: Column containing the colours for the positive sides of interfaces.; Used by: srfwrl.for.
KOLPTS=integer: Column containing the colours for points.; Used by: ptswrl.for.
KOLSRF=integer: Column containing the colours for the triangles.; Used by: trglps.for.
KOLUM1=integer: Column with the values.; Used by: ptsselec.for, trglnorm.for, trglsort.for.
KOLUM2=integer: Column with the values.; Used by: ptsselec.for, trglnorm.for, trglsort.for.
KOLUM3=integer: Column with the values.; Used by: ptsselec.for, trglnorm.for.
KOLUMN=integer: Column with the values.; Used by: grdpts.for, intf.for, invpts.for, trglsort.for.
KOLUMN1=integer to KOLUMN9=integer: Column with the values.; Used by: grdpts.for.
KOMP=integer: Component of the GSE seismograms.; Used by: gse2segy.for.
KOMP1=integer, KOMP11=integer to KOMP1#=integer, KOMP2=integer, KOMP21=integer to KOMP2#=integer, KOMP3=integer, KOMP31=integer to KOMP32=integer: Switches for selection of components of seismograms.; Used by: sp.for.
KOOR1=integer: Index of the first coordinate of 2-D section.; Used by: crtlew.for, modle2d.for.
KOOR2=integer: Index of the second coordinate of 2-D section.; Used by: crtlew.for, modle2d.for.
KOORGRD=integer: Kind of coordinates in which the grid for discretization is specified.; Used by: grid.for.
KPHASE=integer: Switch between algebraic and goniometric form of complex amplitudes.; Used by: crtpts.for.
KREC=integer: Switch to decide which points are to be written.; Used by: crtpts.for.
KRGB='string': Name of the input file with RGB table.; Used by: pallet.for.
KRGBNEW='string': Name of the output file with RGB table.; Used by: pallet.for.
KSIG=integer: Type of the source time function.; Used by: fd2d.for, ss.for.
KSRC=integer: Switch to modify the initial point of a ray.; Used by: crtpts.for, crtray.for.
KSRFC=integer: Parameter describing the form of file INTF.; Used by: intf.for.
KSURF=integer: Parameter describing surface.; Used by: anisrf.for.
KSWAVE=integer: Switch to trace anisotropic S-wave rays.; Used by subroutine file hder.for,; called by programs: crt.for, crtpfa.for, green.for.
KTT=integer: Switch to control the form of strings in the output file.; Used by: crtpts.for.
KTWO=integer: Switch to convert initial-value to two-point travel time.; Used by: crtpts.for, crtray.for.
KWAVE=integer: Parameter specifying the slowness or ray-velocity surface.; Used by: anisrf.for.
L1=positive integer: Number of small bricks in X1 direction.; Used by: grid.for, net.for.
L1MAX=integer: Maximum number of small bricks in X1 direction.; Used by: netind.for.
L2=positive integer: Number of small bricks in X2 direction.; Used by: grid.for, net.for.
L2MAX=integer: Maximum number of small bricks in X2 direction.; Used by: netind.for.
L3=positive integer: Number of small bricks in X3 direction.; Used by: grid.for, net.for.
L3MAX=integer: Maximum number of small bricks in X3 direction.; Used by: netind.for.
LA1=integer: Numerical parameter.; Used by: fd2d.for.
LATTICEV=integer: Parameter specifying the phase-space density of Gabor functions.; Used by: sgfhom.for.
LATTICEH=integer: Parameter specifying the phase-space density of Gabor functions.; Used by: sgfhom.for.
LEFT=integer: Specifies right-handed or left-handed plot coordinate system.; Used by: trglps.for.
LEMAX=real: Maximum value for the frame with Lyapunov exponents.; Used by: modle2d.for.
LFREE=integer: Switch to decide whether undefined free-space blocks are to be reported.; Used by: modchk.for.
LIN='string': Name of the file with lines.; Used by: bndlin.for, coorchg.for, grdpts.for, invpts.for, linden.for, linwrl.for.
LINOUT='string': Name of the file with lines.; Used by: coorchg.for, linden.for.
LOG='string': Name of the log file.; Used by: grdran2d.for.
LOVER=integer: Indicates whether overlapping blocks are allowed.; Used by: modchk.for.
LPAR='string': Name of the file with the material parameters to be gridded.; Used by: grid.for.
M1='string': Name of the file with a single integer number.; Used by: grdcal.for, invpts.for, invsoft.for, invtt.for, modmod.for, smeigen.for, smpower.for, srcsrc.for, trsmsm.for.
M1IN='string': Name of the file with a single integer number.; Used by: invtt.for.
M1LOC='string': Name of the file with a single integer number.; Used by: invsoft.for.
M1MOD='string': Name of the file with a single integer number.; Used by: srcsrc.for.
M2='string': Name of the file with a single integer number.; Used by: grdcal.for, invpts.for, invtt.for.
M2IN='string': Name of the file with a single integer number.; Used by: invpts.for, invtt.for.
M4='string': Name of the file with a single integer number.; Used by: grdfft.for.
MATFUN='string': Name of the function.; Used by: matfun.for.
MATIN1='string': Name of the matrix header file.; Used by: matfun.for, matinv.for, matlin.for, matmul.for.
MATIN2='string': Name of the matrix header file.; Used by: matlin.for, matmul.for.
MATOUT='string': Name of the matrix header file.; Used by: matfun.for, matinv.for, matlin.for, matmul.for.
MATT1=integer, MATT2=integer: Transposition switch.; Used by: matmul.for.
MAXDIG=positive integer: Number of digits of reals in an output file.; Used by: binasc.for, coorchg.for, crtpfa.for, crtpts.for, crtray.for, grd2d3d.for, grdcal.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdiso.for, grdmerge.for, grdnew.for, grdnorm.for, grdpts.for, grdran.for, grdran2d.for, grdstat.for, grdte.for, grdtrans.for, grdwrl.for, green.for, grid.for, intf.for, linden.for, linwrl.for, mgrd.for, modmod.for, modsrf.for, mtt.for, mttgrd.for, pfatubes.for, ptsgrd.for, ptswrl.for, sgfgrd.for, sgfhom.for, sgfmat.for, srfwrl.for, srp.for, trglnorm.for, trglps.for, trglsort.for, tsurf.for, wfsrf.for.
MAXPTS=integer: Switch enabling to select the maximum value from the input grid.; Used by: grdpts.for.
MGRD='string': Name of the file with multivalued gridded values.; Used by: mgrd.for, mttgrd.for.
MHIST='string': Name of the file with gridded histories.; Used by: mtt.for.
MIGR='string': Name of the input ASCII file containing the names of files with grid values of travel times and amplitudes for Kirchhoff migration.; Used by: grdmigr.for.
MINDIG=positive integer: Minimum number of digits of reals in an output file.; Used by: binasc.for, coorchg.for, crtpfa.for, crtpts.for, crtray.for, grd2d3d.for, grdcal.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdiso.for, grdmerge.for, grdnew.for, grdnorm.for, grdpts.for, grdran.for, grdran2d.for, grdstat.for, grdte.for, grdtrans.for, grdwrl.for, green.for, grid.for, intf.for, linden.for, linwrl.for, mgrd.for, modmod.for, modsrf.for, mtt.for, mttgrd.for, pfatubes.for, ptsgrd.for, ptswrl.for, sgfgrd.for, sgfhom.for, sgfmat.for, srfwrl.for, srp.for, trglnorm.for, trglps.for, trglsort.for, tsurf.for, wfsrf.for.
MODCHK='string': Name of the file with additional free-space blocks.; Used by: modchk.for.
MODE=integer: Mode of the calculation.; Used by: grdiso.for.
MODEL='string': Name of the file with the data for a model.; Used by: bndlin.for, coorchg.for, crtin.for, crtpfa.for, green.for, grid.for, intf.for, invpts.for, invsoft.for, invtt.for, modchk.for, modfd.for, modle2d.for, modmod.for, modsrf.for, sec.for, tcrot.for.
MODIN='string': Name of the file describing the form of the parametrization of the output model.; Used by: modmod.for.
MODIND='string': Name of the file containing the indices of model parameters.; Used by: invsoft.for, modmod.for.
MODL2='string': Name of the file containing the L2 scalar products of the model basis functions.; Used by: invsoft.for.
MODLED='string': Name of the file containing the directional Lyapunov exponents.; Used by: modle2d.for.
MODLEF='string': Name of the file with the frame of the graph of the directional Lyapunov exponents.; Used by: modle2d.for.
MODLEM='string': Name of the file containing the mean Lyapunov exponent for the model (a single value).; Used by: modle2d.for.
MODLEW='string': Name of the file containing the weights for directional Lyapunov exponents.; Used by: crtlew.for, modle2d.for.
MODLOG='string': Name of the file with the report on the consistency check.; Used by: modchk.for.
MODNEW='string': Name of the file with the values of model parameters (coefficients at the model basis functions).; Used by: modmod.for, srcsrc.for.
MODOUT='string': Name of the file describing the new model.; Used by: modmod.for, tcrot.for.
MODPAR='string': Name of the file with the values of model parameters (coefficients at the model basis functions).; Used by: invsoft.for.
MODSOB='string': Name of the file containing the Sobolev scalar products of the model basis functions.; Used by: invsoft.for.
MP1='string': Name of the file with the first component of the slowness vector.; Used by: grdborn.for, mtt.for.
MP2='string': Name of the file with the second component of the slowness vector.; Used by: grdborn.for, mtt.for.
MP3='string': Name of the file with the third component of the slowness vector.; Used by: grdborn.for, mtt.for.
MP4='string', MP5='string', MP6='string': Names of the files with the derivatives of travel time with respect to the coordinates of the source.; Used by: mtt.for.
MPAR=integer: Kind of a material parameter.; Used by: grid.for, invpts.for.
MPQ11='string', MPQ12='string', MPQ13='string', MPQ14='string', MPQ21='string', MPQ22='string', MPQ23='string', MPQ24='string', MPQ31='string', MPQ32='string', MPQ33='string', MPQ34='string', MPQ41='string', MPQ42='string', MPQ43='string', MPQ44='string'.: Names of the files with components of the 4 times 4 ray propagator matrix.; Used by: mtt.for.
MPTS=integer: Number of points of the time functions at the output check plot.; Used by: ss.for.
MTI='string': Name of the file with imaginary parts of complex travel times.; Used by: mtt.for.
MTT='string': Name of the file with travel times.; Used by: grdborn.for, mtt.for.
MTT11='string', MTT12='string', MTT22='string', MTT13='string', MTT23='string', MTT33='string': Names of the files with the second derivatives of travel time.; Used by: mtt.for.
MTTLIN=integer: Switch between bicubic and bilinear interpolation.; Used by: mtt.for.
MTTORDER=real: Order of sorting the multivalued interpolated quantities (ascending or descending).; Used by: mtt.for.
MTTPTS='string': Name of the output file with points.; Used by: mtt.for.
MTTSORT='string': Quantity according which the multivalued interpolated quantities are sorted.; Used by: mtt.for.
MTTXX='string': Name of the file with second derivatives of travel time with respect to the coordinate perpendicular to the 2D grid.; Used by: grdborn.for.
MX4='string', MX5='string', MX6='string': Name of the file with the coordinates of the initial point of the ray.; Used by: mtt.for.
N1=integer: Number of gridpoints in X1 direction.; Used by: ascbin.for, binasc.for, fd2d.for, fdmod.for, grd2d3d.for, grdborn.for, grdcal.for, grdckn.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdgse.for, grdiso.for, grdmerge.for, grdnew.for, grdnorm.for, grdmigr.for, grdps.for, grdpts.for, grdran.for, grdran2d.for, grdstat.for, grdte.for, grdtrans.for, grdwrl.for, grid.for, invpts.for, mgrd.for, modchk.for, modfd.for, modsrf.for, mtt.for, mttgrd.for, net.for, newpar.for, ptsgrd.for, sgfgrd.for, sgfmat.for, swap.for.
N10=integer: Number of gridpoints in X1 direction.; Used by: grdte.for.
N11=positive integer, N12=positive integer,: Number of gridpoints in X1 direction.; Used by: grdcros.for.
N1FFT=positive integer: Number of gridpoints for the Fourier transform in X1 direction.; Used by: grdfft.for.
N1NEW=integer: Number of gridpoints in X1 direction.; Used by: binasc.for, grdiso.for, grdnew.for, grdnorm.for.
N1OUT=positive integer: Number of gridpoints in X1 direction.; Used by: grdfft.for.
N2=integer: Number of gridpoints in X2 direction.; Used by: ascbin.for, binasc.for, fd2d.for, grd2d3d.for, grdborn.for, grdcal.for, grdckn.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdgse.for, grdiso.for, grdmerge.for, grdmigr.for, grdnew.for, grdnorm.for, grdps.for, grdpts.for, grdran.for, grdran2d.for, grdstat.for, grdte.for, grdtrans.for, grdwrl.for, grid.for, invpts.for, mgrd.for, modchk.for, modfd.for, modsrf.for, mtt.for, mttgrd.for, net.for, newpar.for, ptsgrd.for, sgfgrd.for, sgfmat.for, swap.for.
N20=integer: Number of gridpoints in X2 direction.; Used by: grdte.for.
N21=positive integer, N22=positive integer,: Number of gridpoints in X2 direction.; Used by: grdcros.for.
N2FFT=positive integer: Number of gridpoints for the Fourier transform in X2 direction.; Used by: grdfft.for.
N2NEW=integer: Number of gridpoints in X2 direction.; Used by: binasc.for, grdiso.for, grdnew.for, grdnorm.for.
N2OUT=positive integer: Number of gridpoints in X2 direction.; Used by: grdfft.for.
N3=integer: Number of gridpoints in X3 direction.; Used by: ascbin.for, binasc.for, fd2d.for, fdmod.for, grd2d3d.for, grdborn.for, grdcal.for, grdckn.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdiso.for, grdmerge.for, grdmigr.for, grdnew.for, grdnorm.for, grdps.for, grdpts.for, grdran.for, grdstat.for, grdte.for, grdtrans.for, grdwrl.for, grid.for, invpts.for, mgrd.for, modchk.for, modfd.for, modsrf.for, mtt.for, mttgrd.for, net.for, newpar.for, ptsgrd.for, sgfgrd.for, sgfmat.for, swap.for.
N30=integer: Number of gridpoints in X3 direction.; Used by: grdte.for.
N31=positive integer, N32=positive integer,: Number of gridpoints in X1 direction.; Used by: grdcros.for.
N3FFT=positive integer: Number of gridpoints for the Fourier transform in X3 direction.; Used by: grdfft.for.
N3NEW=integer: Number of gridpoints in X3 direction.; Used by: binasc.for, grdiso.for, grdnew.for, grdnorm.for.
N3OUT=positive integer: Number of gridpoints in X3 direction.; Used by: grdfft.for.
N4=positive integer: Number of time slices ("snapshots").; Used by: fd2d.for, grdcal.for, grdfd.for, grdfft.for, grdnorm.for, grdps.for, grdtrans.for, mgrd.for, mttgrd.for.
N4NEW=positive integer: Number of time slices ("snapshots").; Used by: grdnorm.for.
NA=integer: Number of angles.; Used by: crtlew.for, modle2d.for.
NAME='string': String containing the GOCAD name of the set of lines, points, or of the surface.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for.
NCRT=positive integer: Total number of executions of program 'crt.for'.; Used by: mtt.for, wfsrf.for.
ND1=positive integer: Multiplication factor of the grid interval along the X1 axis.; Used by: binasc.for, grdiso.for.
ND2=positive integer: Multiplication factor of the grid interval along the X2 axis.; Used by: binasc.for, grdiso.for.
ND3=positive integer: Multiplication factor of the grid interval along the X3 axis.; Used by: binasc.for, grdiso.for.
NDIG=integer: Specification of the output format.; Used by: binasc.for.
NDIM=positive integer: Spatial dimension.; Used by: grdckn.for, grdcor.for.
NDIVTRGL=integer: Specification of the density of triangle vertices along the unit sphere.; Used by: anisrf.for.
NEGPAR=integer: Flag whether the negative values of material parameters are allowed.; Described in file model.for, where subroutine MODEL1 reading this parameter is located.; Used in subroutine PARM2 of file parm.for,; called by programs crt.for, green.for, modfd.for, modsrf.for, grid.for, sec.for, modle2d.for,; and in subroutine PARM2 of file parmv.for,; called by program invtt.for.
NET='string': Name of the input data file containing the references to other input and output files.; Used by: net.for.
NEWX1=positive integer: Index of the input axis.; Used by: grdtrans.for.
NEWX2=positive integer: Index of the input axis.; Used by: grdtrans.for.
NEWX3=positive integer: Index of the input axis.; Used by: grdtrans.for.
NEWX4=positive integer: Index of the input axis.; Used by: grdtrans.for.
NF=integer: Number of frequencies.; Used by: grdborn.for, green.for, greenss.for, greenmul.for, greentc.for, tcgreen.for.
NFFT=integer: Number of the time samples for the fast Fourier transform.; Used by: grdborn.for, green.for, greenss.for, ss.for.
NFSMAX=integer: Maximum size of a forward star; parameter deciding about TTT mode.; Used by: net.for.
NH=positive integer: Number of sections in rows of the image.; Used by: grdps.for.
NHALF=integer: Kind of finite difference scheme.; Used by: grdfd.for.
NL1MAX=integer: Maximum value of N1*L1.; Used by: netind.for.
NL2MAX=integer: Maximum value of N2*L2.; Used by: netind.for.
NL3MAX=integer: Maximum value of N3*L3.; Used by: netind.for.
NLINDEN=integer: Number of subparts of a line.; Used by: linden.for.
NO1=positive integer: Index of the first output gridpoint along the X1 axis.; Used by: binasc.for, grdiso.for.
NO2=positive integer: Index of the first output gridpoint along the X2 axis.; Used by: binasc.for, grdiso.for.
NO3=positive integer: Index of the first output gridpoint along the X3 axis.; Used by: binasc.for, grdiso.for.
NODATA=real: Value used as the 'property no data value' in GOCAD.; Used by: grdwrl.for.
NORDER=integer: Order of finite difference scheme.; Used by: grdfd.for.
NORMSP=integer: Type of amplitude scaling.; Used by: sp.for.
NPAR1=positive integer: Number of gridpoints corresponding to the first ray take-off parameter.; Used by: mtt.for, wfsrf.for.
NPAR2=positive integer: Number of gridpoints corresponding to the second ray take-off parameter.; Used by: mtt.for, wfsrf.for.
NPOWER=integer: Number of subsequent finite differences.; Used by: hdertest.for.
NQ=integer: Number of quantities.; Used by: crtpts.for, crtray.for.
NREC=positive integer: Number of receivers.; Used by: grdborn.for, grdmigr.for.
NS=integer: Number of segments.; Used by: modle2d.for.
NSAMPL=integer: Number of samples per data trace.; Used by: gse2segy.for.
NSEIS=positive integer: Number of points of a seismogram stored in a grid file.; Used by: grdmigr.for.
NTFD=integer: Number of time levels.; Used by: fd2d.for.
NTIME=positive integer: Number of two-way travel times.; Used by: mtt.for, wfsrf.for.
NTRACE=integer: Number of data traces per record.; Used by: gse2segy.for.
NTT=positive integer: Number of travel-time samples.; Used by: mtt.for, wfsrf.for.
NULL=positive real: Parameter specifying values to be deamed zero.; Used by: sgfmat.for.
NUM='string': Name of the file with numbers of values at gridpoints.; Used by: grdborn.for, mgrd.for, mtt.for, mttgrd.for.; Note that parameter NUM is equivalent to parameter GRDCALNUM of program grdcal.for.
NUMLIN=positive integer: Maximum number of numbers at one line of an output file.; Used by: binasc.for, gpanal.for, gpmig.for, grd2d3d.for, grdcal.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdmerge.for, grdmigr.for, grdnew.for, grdnorm.for, grdran.for, grdran2d.for, grdstat.for, grdte.for, grdtrans.for, grid.for, mgrd.for, modmod.for, mtt.for, mttgrd.for, ptsgrd.for, sgfgrd.for, tcrot.for.
NUMLINM=positive integer: Maximum number of numbers at one line of an output matrix data file.; Used by: matfun.for, matinv.for, matlin.for, matmul.for, sgfmat.for.
NWAVES=positive integer: Number of the elementary waves.; Used by: mtt.for.
NWRITE=positive integer: Number of calculation steps to update screen output.; Used by: grid.for.
NX=integer: Number of lines for computation of Lyapunov exponents.; Used by: modle2d.for.
NY=integer: Number of sections for computation of Lyapunov exponents.; Used by: modle2d.for.
O1=real: First coordinate of the origin of a grid.; Used by: fd2d.for, fdmod.for, grdckn.for, grdcor.for, grdcros.for, grdfft.for, grdiso.for, grdnew.for, grdnorm.for, grdpts.for, grdte.for, grdwrl.for, invpts.for, modfd.for, modsrf.for, mtt.for, net.for, ptsgrd.for, sgfgrd.for, sgfmat.for.
O10=real: First coordinate of the origin of a grid.; Used by: grdte.for.
O11=real, O12=real: First coordinate of the origin of a grid.; Used by: grdcros.for.
O1NEW=real: First coordinate of the origin of a grid.; Used by: grdnew.for, grdnorm.for.
O1OUT=real: First coordinate of the origin of a grid.; Used by: grdfft.for.
O2=real: Second coordinate of the origin of a grid.; Used by: grdckn.for, grdcor.for, grdcros.for, grdfft.for, grdiso.for, grdnew.for, grdnorm.for, grdpts.for, grdte.for, grdwrl.for, invpts.for, modfd.for, modsrf.for, mtt.for, net.for, ptsgrd.for, sgfgrd.for, sgfmat.for.
O20=real: Second coordinate of the origin of a grid.; Used by: grdte.for.
O21=real, O22=real: Second coordinate of the origin of a grid.; Used by: grdcros.for.
O2NEW=real: Second coordinate of the origin of a grid.; Used by: grdnew.for, grdnorm.for.
O2OUT=real: Second coordinate of the origin of a grid.; Used by: grdfft.for.
O3=real: Third coordinate of the origin of a grid.; Used by: fd2d.for, fdmod.for, grd2d3d.for, grdckn.for, grdcor.for, grdcros.for, grdfft.for, grdiso.for, grdnew.for, grdnorm.for, grdpts.for, grdte.for, grdwrl.for, invpts.for, modfd.for, modsrf.for, mtt.for, net.for, ptsgrd.for, sgfgrd.for, sgfmat.for.
O30=real: Third coordinate of the origin of a grid.; Used by: grdte.for.
O31=real, O32=real: Third coordinate of the origin of a grid.; Used by: grdcros.for.
O3NEW=real: Third coordinate of the origin of a grid.; Used by: grdnew.for, grdnorm.for.
O3OUT=real: Third coordinate of the origin of a grid.; Used by: grdfft.for.
O4=real: Time corresponding to the first spatial grid.; Used by: grdnorm.for.; Time of the first snapshot.; Used by: fd2d.for.
O4NEW=real: Time corresponding to the first spatial grid.; Used by: grdnorm.for.
OA=real: The first angle.; Used by: crtlew.for, modle2d.for.
OF=real: The first frequency.; Used by: grdborn.for, green.for, greenss.for, greentc.for, tcgreen.for.
OFSS=real: The first frequency.; Used by: greenss.for.
OLDMOD=real: Percentage of the kept original model.; Used by: modmod.for.
OPAR1=real: The first ray take-off parameter corresponding to the first gridpoint.; Used by: mtt.for, wfsrf.for.
OPAR2=real: The second ray take-off parameter corresponding to the first gridpoint.; Used by: mtt.for, wfsrf.for.
OSEIS=real: Time of the first sample of a seismogram stored in a grid file.; Used by: grdmigr.for.
OT=real: Initial travel time.; Used by: greentc.for.
OTIME=real: Two-way travel time of the first sample.; Used by: mtt.for, wfsrf.for.
OTT=real: Travel time of the first sample.; Used by: mtt.for, wfsrf.for.
OUTU='string': Name of the file with seismograms.; Used by: fd2d.for.
OUTW='string': Name of the file with seismograms.; Used by: fd2d.for.
P1=real,P2=real,P3=real: Components of a slowness vector.; Used by: hdertest.for.
PICDAT='string': Name of the input file to control plotting.; Used by: pictures.for.
PICTURE='string': Name of the output PostScript file with the plotted picture.; Used by: pictures.for.
PLGN='string': Name of the file with polygons (indices of vertices).; Used by: grdpts.for, modsrf.for, plgn.for, trgl.for, wfsrf.for.
PLGNS='string': Name of the file with polygons (names of vertices).; Used by: modsrf.for, plgn.for, tsurf.for, wfsrf.for.
PLIGHT='string': Name of the file with point lights.; Used by: iniwrl.for.
PLIM1=real: Minimum of the first plot coordinate.; Used by: rpplot.for.
PLIM2=real: Maximum of the first plot coordinate.; Used by: rpplot.for.
PLIM3=real: Minimum of the second plot coordinate.; Used by: rpplot.for.
PLIM4=real: Maximum of the second plot coordinate.; Used by: rpplot.for.
POWER=real: Power of the matrix.; Used by: smpower.for.
POWER01=real to POWER69=real: Power of the quantity to be written to the corresponding column.; Used by: modsrf.for, wfsrf.for.
POWERM=real: Power of the material parameter.; Used by: invpts.for.
POWERN=real: Exponent or index related to fractal dimension (e.g., the exponent describing the self-affine random medium).; Used by: grdckn.for, grdcor.for, grdran2d.for, loc1.cal.
PROJ1=real: First component of the projection vector.; Used by: mtt.for.
PROJ2=real: Second component of the projection vector.; Used by: mtt.for.
PROJ3=real: Third component of the projection vector.; Used by: mtt.for.
PROPERTIES='string': String containing names of properties.; Used by: linwrl.for, ptswrl.for, srfwrl.for.
PROPERTY='string': String containing the name of property.; Used by: grdwrl.for.
PS='string': Name of the output PostScript file.; Used by: grdps.for.
PSHEX='string': Name of the output file containing hexadecimal grid data and the PostScript trailer.; Used by: grdps.for.
PTS='string': Name of the file with points.; Used by: coorchg.for, crtpts.for, grdckn.for, grdiso.for, grdpts.for, invpts.for, invtt.for, mtt.for, ptsgrd.for, ptsselec.for, ptswrl.for, sgfhom.for, sp.for.
PTS1='string': Name of the file with points.; Used by: grdiso.for, invtt.for.
PTS2='string' to PTS9='string': Name of the file with points.; Used by: invtt.for.
PTSGRD='string': Name of the output with grid values at points.; Used by: ptsgrd.for.
PTSNEW='string': Name of the file with points.; Used by: ptsselec.for.
PTSOUT='string': Name of the file with points.; Used by: coorchg.for.
QFC='string': Name of the output file with gridded P-wave quality factor.; Used by: fdmod.for, modfd.for.
QICHM=integer: Switch deciding about optional quasi-isotropic modification of the Christoffel matrix.; Used by: green.for.
QIDT=integer: Switch deciding about optional quasi-isotropic modification of the difference between the anisotropic travel times.; Used by: green.for.
QILST='string': Name of the file containing second-order perturbations of anisotropic travel times of S waves.; Used by: green.for.
QILSTA='string': Name of the input/output file.; Used by: watable.for.
QILSTI='string': Name of the input/output file.; Used by: watable.for.
QIPV=integer: Switch deciding about optional quasi-isotropic projection of the polarization vectors.; Used by: green.for, mtt.for.
QIRAY=integer: Switch deciding about optional second-order perturbation of anisotropic travel times of S waves.; Used by: crtpfa.for, green.for.
QITT=integer: Switch deciding about optional quasi-isotropic modification of the average anisotropic travel time.; Used by: green.for.
QMIN=real: Minimum value of point-source geometrical spreading. Smaller grid values are replaced by QMIN.; Used by: q2.cal.
QMAX=real: Maximum value of point-source geometrical spreading. Greater grid values are replaced by QMAX.; Used by: q2.cal.
R=real: Content of red in the colour of background.; Used by: grdps.for, iniwrl.for, trglps.for.; Content of red in the colour of lines.; Used by: linwrl.for,; Content of red in the colour of points.; Used by: ptswrl.for,; Content of red in the colour of surfaces.; Used by: srfwrl.for,
RANDIS='string': Specification of the random distribution.; Used by: grdran.for, grdran2d.for.
RANOUT='string': Name of the file with pseudorandom values.; Used by: grdran.for.
RAYS='string': Name of the file with rays.; Used by: crtray.for.
REC='string': Name of the file with receiver(s).; Used by: crtin.for, crtpts.for, crtray.for, fd2d.for, grdborn.for, green.for, greenti.for, rpplot.for, sp.for, tcgreen.for.
REDUNDANCY=real: Parameter specifying the phase-space density of Gabor functions.; Used by: sgfhom.for.
RELAMP=positive real: Parameter specifying relative decay of the Gaussian envelope.; Used by: sgfgrd.for, sgfmat.for.
RF='string': Name of the file with the frequency-domain response function.; Used by: grdborn.for, greenss.for, ss.for.
RHOPER='string': Name of the file with gridded values of perturbations of density.; Used by: grdborn.for.
RIDGE1=positive real: Numerical parameter controlling the check for the ridges of the first-arrival travel time.; Used by: net.for.
RIDGE2=positive real: Numerical parameter controlling the check for the ridges of the first-arrival travel time.; Used by: net.for.
RLMAX=nonnegative real: Parameter controlling the low-pass wavenumber cosine filter.; Used by: grdran2d.for.
RLMIN=nonnegative real: Parameter controlling the low-pass wavenumber cosine filter.; Used by: grdran2d.for.
RMATRIX='string': Name of file with the parameters of fine layered structures at the receiver sites.; Used by: greenss.for.
ROTATE=real: Angle in degrees to rotate the image.; Used by: grdps.for, trglps.for.
RPAR='string': Name of the file with the data specifying the take-off parameters of the rays.; Used by: crtin.for, rpplot.for.
RPAREW='string': Name of the file with the data RPAR-(4).; Used by: crtin.for.
RPPLOT='string': Name of the output PostScript file.; Used by: rpplot.for.
SAMP=real: Parameter to amplify the rotation before further processing of wavefield snapshots.; Used by: snap.cal.
SCRANSI=integer: Identification how the screen handles the ANSI escape sequences.; Used by: crtin.for.
SCRBBOX1=real, SCRBBOX2=real, SCRBBOX3=real, SCRBBOX4=real: Bounding box (plotting area) of the graphical screen output.; Used by: crtin.for.
SCRLINE=real: Estimated thickness of a line plotted on the screen (in the CalComp units).; Used by: crtin.for.
SCRPLUS=integer: Identification how the screen handles the first character of a record.; Used by: crtin.for.
SCRHEIGHT=integer: Screen height in lines.; Used by: crtin.for.
SCRWIDTH=integer: Screen width in characters.; Used by: crtin.for.
SECDAT='string': Name of the file containing input data for the specification of the sections of the model.; Used by: sec.for.
SECTS='string': Name of the output file with the generated sections.; Used by: sec.for.
SGF='string': Name of the file with structural Gabor functions.; Used by: sgfgrd.for, sgfhom.for, sgfmat.for.
SGFAMP='string': Name of the file with amplitudes of Gabor functions.; Used by: sgfgrd.for.
SGFMAT='string': Name of the file with matrix of the scalar products between the real-valued functions corresponding to individual unknown real-valued coefficients.; Used by: sgfmat.for.
SGFRHS='string': Name of the file with vector of the scalar products of the given gridded real-valued quantity with the real-valued functions corresponding to individual unknown real-valued coefficients.; Used by: sgfmat.for.
SGFPTS='string': Name of the output file linking structural Gabor functions to central points.; Used by: sgfhom.for.
SHIFT1=real: First component of the shifting vector.; Used by: linwrl.for, ptswrl.for, tsurf.for.
SHIFT2=real: Second component of the shifting vector.; Used by: linwrl.for, ptswrl.for, tsurf.for.
SHIFT3=real: Third component of the shifting vector.; Used by: linwrl.for, ptswrl.for, tsurf.for.
SHININESS=real: Shininess of the surfaces (sometimes called transmit).; Used by: srfwrl.for.
SHOWPAGE=integer: Optionally disabling the PostScript "showpage" command.; Used by: grdps.for, pictures.for, rpplot.for, sp.for, ss.for.
SIGA=real: Amplitude of the maximum of the signal or its envelope.; Used by: ss.for.; Reference amplitude of the excitation wavelet.; Used by: fd2d.for.
SIGDIG='string': Name of the file containing the digitized time function.; Used by: ss.for.
SIGF=positive real: Reference frequency.; Used by: fd2d.for, ss.for.
SIGGSE='string': Name of the file in the GSE format containing the source time function and its Hilbert transform (for seismic force), or their derivatives (for seismic moment).; Used by: greenss.for, ss.for.
SIGPH=real: Phase in radians.; Used by: ss.for.
SIGPLOT='string': Name of the output PostScript file.; Used by: ss.for.
SIGT=real: Reference time of the given signal.; Used by: ss.for.
SIGW=positive real: Relative width of the signal.; Used by: ss.for.
SIN2TH=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
SINGLF=positive real: Prevailing frequency for the prevailing-frequency approximation of the coupling ray theory.; Used by: crtpfa.for, green.for.
SINTER=real: Sample interval.; Used by: gse2segy.for.
SM1='string': Name of the file with a symmetric matrix.; Used by: smeigen.for, smpower.for, trsmsm.for.
SM2='string': Name of the file with a symmetric matrix.; Used by: smpower.for, trsmsm.for.
SMALL=positive real: Parameter to neglect relatively small amplitudes.; Used by: ss.for.
SNAP1='string': Name of the output file with the displacement.; Used by: fd2d.for.
SNAP3='string': Name of the output file with the displacement.; Used by: fd2d.for.
SOBMUL=real: Scaling parameter of the Sobolev scalar products.; Used by: addsob.cal.
SOBOLEV='string': Name of the file with the coefficients describing the Sobolev scalar product under consideration.; Used by: invsoft.for.
SOBW00=real to SOBW47=real: Weights of Sobolev scalar products.; Used by: invsoft.for.
SOURCE='string': Name of the file with the seismic force or moment.; Used by: greenss.for.
SP1='string': Name of the output PostScript file with the plot of the first component of the synthetic seismograms.; Used by: sp.for.
SP2='string': Name of the output PostScript file with the plot of the second component of the synthetic seismograms.; Used by: sp.for.
SP3='string': Name of the output PostScript file with the plot of the third component of the synthetic seismograms.; Used by: sp.for.
SPAMP=real: Amplitude scale for all 3 components.; Used by: sp.for.
SPAMP1=real to SPAMP#=real: Individual amplitude scales for SS1 to SS#.; Used by: sp.for.
SPAMPX='string': Name of the optional input data file, which specifies different amplitude scaling for individual receivers.; Used by: sp.for.
SPAMPX1=real: Amplitude scale for the first component.; Used by: sp.for.
SPAMPX2=real: Amplitude scale for the second component.; Used by: sp.for.
SPAMPX3=real: Amplitude scale for the third component.; Used by: sp.for.
SPARSE=integer: Sparseness of the matrix; Used by: matfun.for, matinv.for, matlin.for, matmul.for.
SPCHRH=real: Character height in cm.; Used by: sp.for.
SPDIST=real: Reference hypocentral distance for the amplitude power scaling.; Used by: sp.for.
SPECULAR=real: Intensity of the specular reflections from glossy surfaces.; Used by: srfwrl.for.
SPEXP=real: Exponential scaling of seismograms with respect to time.; Used by: sp.for.
SPEXP1=real to SPEXP#=real: Individual scale exponents for SS1 to SS#.; Used by: sp.for.
SPEXPT=real: Exponential scaling of seismograms with respect to time.; Used by: sp.for.
SPHILI='string': Name of the file with the travel times to be highlighted.; Used by: sp.for.
SPHIWI=real: Width of the highlighted area when plotting travel times.; Used by: sp.for.
SPOWER=real: Exponent of the amplitude power scaling.; Used by: sp.for.
SPOWER1=real to SPOWER#=real: Individual exponents of the amplitude power scaling for SS1 to SS#.; Used by: sp.for.
SPPAR='string': Name of an optional input SEP parameter file.; Used by: sp.for.
SPSYMH=real: Height of symbols.; Used by: sp.for.
SPSYMTT=integer: Index of symbols.; Used by: sp.for.
SPTDEC=integer: Number of decimal places of times written along the time axis.; Used by: sp.for.
SPTDIV=real: Number of intervals along the time axis.; Used by: sp.for.
SPTEXT1='string' to SPTEXT4='string': Text to be written to the plot.; Used by: sp.for.
SPTLEN=real: Length of the vertical time axis in cm.; Used by: sp.for.
SPTMAX=real: Maximum time or reduced time.; Used by: sp.for.
SPTMIN=real: Minimum time or reduced time.; Used by: sp.for.
SPTSUB=real: Number of subintervals.; Used by: sp.for.
SPTTC='string': Name of the file for plotting of travel-time curves.; Used by: sp.for.
SPVRED=real: Reduction velocity.; Used by: sp.for.
SPXDEC=integer: Number of decimal places of coordinates written along the horizontal axis.; Used by: sp.for.
SPXDIV=real: Number of intervals along the horizontal axis.; Used by: sp.for.
SPXLEN=real: Length of the horizontal axis in cm.; Used by: sp.for.
SPXMAX=real, SPXMAX1=real to SPXMAX#=real: Maximum of the horizontal plot axis.; Used by: sp.for.
SPXMIN=real, SPXMIN1=real to SPXMIN#=real: Minimum of the horizontal plot axis.; Used by: sp.for.
SPXSUB=real: Number of subintervals.; Used by: sp.for.
SPYMAX=real, SPYMAX1=real to SPYMAX#=real: Maximum of the vertical plot axis.; Used by: sp.for.
SPYMIN=real, SPYMIN1=real to SPYMIN#=real: Minimum of the vertical plot axis.; Used by: sp.for.
SRC='string': Name of the file with source(s).; Used by: crtin.for, crtpts.for, crtray.for, fd2d.for, grdborn.for, green.for, sp.for, srcsrc.for, tcgreen.for.
SRCNEW='string': Name of the file with source(s).; Used by: srcsrc.for.
SRF0=real, SRF1=real, SRF2=real, SRF3=real: Parameter specifying the surface with seismic sources and receivers.; Used by: sgfhom.for.
SRP='string': Name of the file with the unshifted points and derivatives.; Used by: srp.for.
SS='string': Name of the file with the seismograms in the GSE format.; Used by: fd2d.for, grdgse.for, greenss.for, sp.for, ss.for, gsecal.for.
SS1='string' to SS#='string': Names of the files with seismograms in the GSE format.; Used by: sp.for, gsecal.for.
SSLOG='string': Name of the output log file of program SS.; Used by: ss.for.
SSPLOT='string': Name of the output PostScript file.; Used by: ss.for.
SSVRED=real: Specification of the time window for the synthetic seismograms.; Used by: ss.for.
STATIN='string': Name of the file containing the input gridded data.; Used by: grdstat.for.
STATOUT='string': Name of the file containing the rescaled gridded data.; Used by: grdstat.for.
SYMBOLS='string': Name of the file with indices of symbols for ray histories.; Used by: rpplot.for.
SYMMETRY='string': Symmetry of the matrix.; Used by: matmul.for.
T=real: Arrival time at the receiver.; Used by: loc1.cal.
TAPER=real: Spatial cosine windowing of seismograms during migration.; Used by: grdmigr.for.
TCCOMP='string': Name of the file with differences of propagator matrices.; Used by: tcfd.for, tccomp.for.
TCE1=real: First component of the rotation vector.; Used by: tcgreen.for, tcrot.for.
TCE2=real: Second component of the rotation vector.; Used by: tcgreen.for, tcrot.for.
TCE3=real: Third component of the rotation vector.; Used by: tcgreen.for, tcrot.for.
TCFDX='string': Name of the output file.; Used by: tcfd.for.
TCFDX='string': Name of the input file.; Used by: tcfd.for.
TCFDY='string': Name of the input file.; Used by: tcfd.for.
TCGREENA='string': Name of the file with the anisotropic propagator matrix.; Used by: tcgreen.for.
TCGREENE='string': Name of the file with the exact propagator matrix.; Used by: tcgreen.for.
TCGREENI='string': Name of the file with the isotropic propagator matrix.; Used by: tcgreen.for.
TCGREENQ='string': Name of the file with the quasi-isotropic propagator matrix.; Used by: tcgreen.for.
TCGREENW='string': Name of the file with the coupling ray theory propagator matrix.; Used by: tcgreen.for.
TCK=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
TCSTRESS='string': Name of the file with the stress components.; Used by: tcfd.for, tcgreen.for.
TERR=real: Standard deviation of the arrival time.; Used by: loc1.cal.
TEXTP='string': First part of the names of points.; Used by: modsrf.for, wfsrf.for.
TI0=real, TI1=real, TI2=real, TI3=real, TI11=real, TI12=real, TI22=real, TI13=real, TI23=real, TI33=real, TI111=real, TI112=real, TI122=real, TI222=real, TI113=real, TI123=real, TI223=real, TI133=real, TI233=real, TI333=real: Imaginary part of phase of a complex function and its derivatives.; Used by: grdte.for.
TIA1=real, TIA2=real, TIA3=real: Symmetry axis of a transversely isotropic medium.; Used by subroutine file hder.for,; called by programs: crt.for, crtpfa.for, green.for.; Used also by program: greenti.for.
TIAXIS='string': Name of the output file with the reference symmetry vector.; Used by: tiaxis.for.
TIMUL=nonnegative real: Multiplication factor for the imaginary part of the travel time.; Used by: greenss.for.
TINT=nonnegative real: Maximum time interval.; Used by: greenss.for.
TMIN=real: Time of the samples.; Used by: gsecal.for.
TOCART=integer: Type of the transformation to be performed.; Used by: coorchg.for.
TR0=real, TR1=real, TR2=real, TR3=real, TR11=real, TR12=real, TR22=real, TR13=real, TR23=real, TR33=real, TR111=real, TR112=real, TR122=real, TR222=real, TR113=real, TR123=real, TR223=real, TR133=real, TR233=real, TR333=real: Real part of phase of a complex function and its derivatives.; Used by: grdte.for.
TRACE='string': Name of the file with a trace of a matrix.; Used by: trsmsm.for.
TRANSP=real: Transparency of the surfaces (sometimes called transmit).; Used by: grdwrl.for, srfwrl.for.
TRED=real: Specification of the time window for the synthetic seismograms.; Used by: ss.for.
TREF=real: Optional reference arrival time. Need not be specified.; Used by: loc1.cal, loc2.cal.
TRGL='string': Name of the file with triangles.; Used by: anisrf.for, grdpts.for, srfwrl.for, trgl.for, trglnorm.for, trglps.for, trglsort.for.
TRGLN='string': Name of the file with triangles.; Used by: trglnorm.for, trglsort.for.
TRGLN1='string': Name of the file with triangles.; Used by: trglsort.for.
TRGLN2='string': Name of the file with triangles.; Used by: trglsort.for.
TRGLPS='string': Name of the output PostScript file.; Used by: trglps.for.
TTDMAX=real: Maximum value of the second travel-time derivatives.; Used by: mtt.for, wfsrf.for.
TTERR1=real: Travel-time error at travel time equal to 1 unit.; Used by: loc1.cal.
TSTART=real: Start time.; Used by: grdgse.for.
TSTEP=real: Time step.; Used by: grdgse.for.
TSURF='string': Name of the file with GOCAD triangulated surfaces.; Used by: tsurf.for.
UEBMUL=real: Multiplicative factor for upper error bound in determining the point of intersection of a ray with a surface.; Used by: crtin.for.
UNDEF=real: Value used for undefined real values.; Used by: ascbin.for, binasc.for, coorchg.for, crtin.for, crtpts.for, crtray.for, gbopt.for, gpanal.for, gpmig.for, gpstep.for, gpsynt.for, grd2d3d.for, grdborn.for, grdcal.for, grdcor.for, grdcros.for, grdfd.for, grdfft.for, grdgse.for, grdiso.for, grdmerge.for, grdmigr.for, grdnew.for, grdnorm.for, grdps.for, grdpts.for, grdran.for, grdran2d.for, grdstat.for, grdte.for, grdtrans.for, grdwrl.for, green.for, greenmul.for, greenss.for, greentc.for, greenti.for, grid.for, gsecal.for, iniwrl.for, intf.for, invpts.for, invtt.for, linden.for, linwrl.for, matfun.for, mgrd.for, modmod.for, mtt.for, mttgrd.for, ptsgrd.for, ptsps.for, ptsselec.for, sgfgrd.for, sgfmat.for, sp.for, ss.for, tcrot.for, trglnorm.for, trglsort.for, wfsrf.for.
UNIT='string': The string specifying length units.; Used by: grdps.for, trglps.for.
UP1=real: First component of a vector pointing upwards.; Used by: iniwrl.for.
UP2=real: Second component of a vector pointing upwards.; Used by: iniwrl.for.
UP3=real: Third component of a vector pointing upwards.; Used by: iniwrl.for.
V0=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
VADD=real: Controls the default value of VPER.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
VALUE=real: Real value.; Used by: grdiso.for, trglsort.for.
VBLACK=real: Brightness interpretation: value corresponding to black.; Used by: grdps.for.
VBRI=real: Extent of values corresponding to the whole brightness range.; Used by: grdps.for.
VBRI4=real: Enables to modify VBRI in dependence on time levels.; Used by: grdps.for.
VCIRC=real: Extent of values corresponding to the whole colour circle RGB.; Used by: grdps.for.
VCIRC4=real: Enables to modify VCIRC in dependence on time levels.; Used by: grdps.for.
VDIV=real: Period of values corresponding to one colour.; Used by: trglps.for.
VECT1=real: First component of the selection vector.; Used by: trglnorm.for.
VECT2=real: Second component of the selection vector.; Used by: trglnorm.for.
VECT3=real: Third component of the selection vector.; Used by: trglnorm.for.
VEL='string': Name of the file with the values at gridpoints.; Used by: grid.for.
VEL1='string': Name of the file with first partial derivatives at gridpoints.; Used by: grid.for.
VEL2='string': Name of the file with first partial derivatives at gridpoints.; Used by: grid.for.
VEL3='string': Name of the file with first partial derivatives at gridpoints.; Used by: grid.for.
VEL11='string': Name of the file with second partial derivatives at gridpoints.; Used by: grid.for.
VEL12='string': Name of the file with second partial derivatives at gridpoints.; Used by: grid.for.
VEL22='string': Name of the file with second partial derivatives at gridpoints.; Used by: grid.for.
VEL13='string': Name of the file with second partial derivatives at gridpoints.; Used by: grid.for.
VEL23='string': Name of the file with second partial derivatives at gridpoints.; Used by: grid.for.
VEL33='string': Name of the file with second partial derivatives at gridpoints.; Used by: grid.for.
VER1=real: Numerical parameter controling the interpolation.; Used by: net.for.
VER2=real: Numerical parameter controling the interpolation.; Used by: net.for.
VMAX=real: Values greater than or equal to VMAX will be deemed undefined.; Used by: grdnorm.for, grdps.for, grdpts.for.
VMEAN=real: Desired mean value.; Used by: grdran2d.for, grdstat.for.
VMIN=real: Values less than or equal to VMIN will be deemed undefined.; Used by: grdnorm.for, grdps.for, grdpts.for.
VMUL=real: Controls the default value of VPER.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
VOFFSET=real: Distance from the bottom paper edge.; Used by: grdps.for, trglps.for.
VP='string': Name of the output file with gridded P-wave velocity.; Used by: modfd.for.
VPER=real: Period of values corresponding to one period in the colour map.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
VPLUS=real: Controls the default value of VCIRC.; Used by: grdps.for.
VPOWER=real: Velocity power for the computation of the travel-time check sum.; Used by: invtt.for.
VPPER='string': Name of the file with gridded values of perturbations of the product of the density and the square of P-wave velocity.; Used by: grdborn.for.
VREF=real: Value corresponding to reference colour.; Used by: grdps.for, grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for, trglps.for.
VREF2=real: Parameter describing the twisted crystal model.; Used by: tcgreen.for.
VRML='string': Virtual reality scene description language.; Used by: grdwrl.for, iniwrl.for, linwrl.for, ptswrl.for, srfwrl.for.
VRTX='string': Name of the file with vertices.; Used by: anisrf.for, modsrf.for, plgn.for, ptsselec.for, srfwrl.for, trgl.for, trglnorm.for, trglps.for, trglsort.for, tsurf.for, wfsrf.for.
VRTXN='string': Name of the file with vertices.; Used by: trglnorm.for, trglsort.for.
VRTXN1='string': Name of the file with vertices.; Used by: trglsort.for.
VRTXN2='string': Name of the file with vertices.; Used by: trglsort.for.
VS='string': Name of the output file with gridded S-wave velocity.; Used by: modfd.for.
VSAT=real: The extent of values corresponding to the whole saturation range.; Used by: grdps.for.
VSAT4=real: Enables to modify VSAT in dependence on time levels.; Used by: grdps.for.
VSIGN=real: Controls the default value of VCIRC.; Used by: grdps.for.
VSIZE=real: Vertical size of the image.; Used by: grdps.for, rpplot.for, trglps.for.
VSPER='string': Name of the file with gridded values of perturbations of the product of the density and the square of S-wave velocity.; Used by: grdborn.for.
VSRC=real: Velocity at the source point for numerical calculation of point-source geometrical spreading from slowness vectors.; Used by: q2.cal.
VWHITE=real: Saturation interpretation: value corresponding to white.; Used by: grdps.for.
WFTIME=real: Travel time of the wavefront.; Used by: wfsrf.for.
WKMAX=real: Parameter controlling values of wavenumber vector.; Used by: sgfhom.for.
WKMIN=real: Parameter controlling values of wavenumber vector.; Used by: sgfhom.for.
WRIT='string': Name of the file specifying the names of the output files with the computed quantities.; Used by: crtin.for.
WRITEW='string': Name of the file with data WRIT-(6).; Used by: crtin.for.
WRL='string': Name of the output file.; Used by: grdwrl.for, iniwrl.for, linwrl.for, ptswrl.for, srfwrl.for.
WRLINI='string': Name of the file to be copied to the beginning of the output file.; Used by: iniwrl.for.
WRLOUT='string': Name of the output file.; Used by: grdwrl.for, linwrl.for, ptswrl.for, srfwrl.for.
X1HIGH=real: Parameter controlling the cosine filter.; Used by: grdcros.for.
X1LOW=real: Parameter controlling the cosine filter.; Used by: grdcros.for.
X1MAX=real, X2MAX=real, X3MAX=real: Parameter controlling the cosine filter or spatial coordinates.; Used by: grdcros.for, sgfhom.for.
X1MIN=real, X2MIN=real, X3MIN=real: Parameter controlling the cosine filter or spatial coordinates.; Used by: grdcros.for, sgfhom.for.
X3=real: Source-receiver distance.; Used by: tcgreen.for.
XDLOC=real: Value of diagonal terms corresponding to source coordinates.; Used by: invsoft.for.
XSIGN=real: Determines the sign of the default value of HSIZE.; Used by: grdps.for, trglps.for.
YSIGN=real: Determines the sign of the default value of VSIZE.; Used by: grdps.for, trglps.for.