Delta-t-V parameters :
Delta-t-V stack width : 96
Regression over offset stations : 5
Linear regression : 1
Median fit regression : 0
Weathering sub-layer count : 3
Maximum valid velocity : 6000
Output at every CMP : 1
Output at every 2nd CMP : 0

Delta-t-V static parameters :
No statics : 0
Surface consistent corrections : 1
CMP Gather datum plane specific corrections : 0
Take v0 from Station & Shotpoint editor : 0
Estimate v0 automatically, with weathering crossover : 1
Weathering crossover distance : 10
Topography smoothing filter width : 100
Inverse CMP offset power : 0.50

Delta-t-V export parameters :
Maximum velocity exported : 5000
Filter maximum velocity exported : 1
Export depth values as negative : 1
Reset too high velocities to maximum velocity exported : 1
Do not export too high velocities : 0
Export absolute elevations of velocities : 1
Export depth below topography, of velocities : 0
Gridding method (see \ray32\ref\gridding.txt) : 5

XTV parameters :
Modified Dix inversion for constant velocity layers : 1
Intercept time inversion for constant velocity layers : 1
Minimum velocity contrast for intercept time inversion : 1.01
Minimum velocity increase across modeled layer : 1
Multiple adjacent intercept time layer inversion : 1
Velocity step for previous intercept time layer : 0
Velocity step for current intercept time layer : 25
Prefer measured layer top velocity over inverted : 1

Export measured CMP velocities : 0
Export CMP x horizontal offset in meters : 1
Export Delta-t-V results in feet : 0

Mean of unsigned difference between measured and inverted velos : 29.29
Standard deviation of unsigned difference between velocities : 26.76

First horizontal offset, at topography : -6
Last horizontal offset, at topography : 100
Profile start offset : 0
Maximum initial model elevation : 100.08000
Minimum initial model elevation : 77.88000
Maximum horizontal inline offset : 100
Minimum horizontal inline offset : -6
Maximum Delta-t-V velocity : 4999.92900
Minimum Delta-t-V velocity : 545.66100

Regard CMP as zero offset zero time trace : 1
Regard reduced offset zero as zero time trace : 0
Monotonically increasing layer bottom velocity : 0
Prefer average over minimum layer velocity : 1
Regard uphole picks for Delta-t-V inversion : 0

Grid file is flipped over : 0
Grid disk file name : D:\ray32\broadepi\LAYRTOMO\VELOIT90.GRD
Grid file content type : WETVelocityGrid
Z data unit description : m/sec.

Taper velocity steps at layer interfaces : 0
Smooth CMP traveltime curves : 0
Weigh picks in stacked CMP curve : 1
Suppress velocity anomalies : 0
Process every CMP offset : 0
Rayfract(R) software version : 4.01
Output Smooth inversion results in feet : 0
Extend gradient model to cover uphole shots : 1
Constant-velocity initial model : 0
Lower gradient velocity : 0
Interpolate gradient velocity : 1
Extrapolate output to all receivers : 0
Wide CMP stack for 1D-gradient initial model : 0
Extrapolate tomogram over 5 stations : 0
Increase grid cell size : 0
Allow unsafe DeltatV inversion : 1

Wide smoothing filter for 1D initial velocity profile : 1
Extra-wide smoothing for 1D initial velocity profile : 0
Allow XTV inversion for 1D initial model : 1
Optimize XTV for layered starting model : 1
Strict shot position checking : 0
Extra-wide stack for 1D-gradient initial model : 0
Limit DeltatV velocity exported to maximum 1D-gradient velocity : 1
Limit DeltatV velocity exported to 5,000 m/s : 0
Decrease cell size : 0
Extra-small cell size : 0
Extra-large cell size : 0
No shot position checking : 0

Number of WET tomography iterations : 90
Central Ricker wavelet frequency [Hz] : 50
Degree of differentiation of Ricker wavelet : -2
Wavepath width [percent of one period] : 1.50
Envelope wavepath width [% of period] : 0
Maximum valid WET velocity [m/sec.] : 4500
Width of Gaussian for one period [sigma] : 3
Use Steepest Descent as gradient search method : 1
Use Conjugate Gradient as gradient search method : 0
Conjugate Gradient error tolerance : 0.001
Secant method error tolerance : 0.0010
Secant method step sigma0 : 0.10
Number of Secant method iterations per CG iteration : 2
Do Steepest Descent step in CG line search loop : 0
Number of Conjugate Gradient iterations : 10
Minimum valid WET velocity [m/sec.] : 10
Cosine-Squared weighting argument power a : 0.50
Cosine-Squared weighting function power b : 10

Initial velocity model grid file : D:\ray32\broadepi\LAYRTOMO\PLUSMODL.GRD
Parameter file for initial model grid : D:\ray32\broadepi\LAYRTOMO\PLUSMODL.PAR
Correct all velocities for Delta-t-V systematic error : 0
Correct basement velocities for Delta-t-V systematic error : 0
Allow gaps in coverage of velocity model grid columns : 0
Skip every second shot for forward modelling : 0

Full smoothing after each tomography iteration : 0
Minimal smoothing after each tomography iteration : 1
Manual specification of smoothing filter, see below : 0
Half smoothing filter width : 2
Half smoothing filter height : 0
Automatically adapt shape of rectangular filter matrix : 1
Maximum relative velocity update after each iteration, in percent of current velocity : 25
Smooth after each nth iteration only [n] : 1
Gaussian filter weighting : 0
Uniform filter weighting : 1
No smoothing : 0
Width of Gaussian used for filter : 1
Smooth both velocity update and tomogram after update : 0
Smooth velocity update for each nth iteration : 0
Smooth final tomogram in last WET iteration : 0
Central row weight for uniform filter : 1
Damping factor : 0
Damp before smoothing : 0

Delete traveltime grid files for last WET iteration : 1
Write wavepaths to disk for shot nr. : -1
Write misfit gradients to disk for shot nr. : -1
Write section velocity update grids after each iteration : 0
Write section coverage grids after each iteration : 1
Store each nth iteration only [n = ] : 10
Write grids after Line Search for Conjugate Gradient : 0

Scale WET smoothing filter height : 0
Beydoun weighting for borehole WET : 0
Precompute static Beydoun weight matrix : 0
Coverage grid shows unweighted hit count : 1
Update imaged grid depth : 1
Write grids for every WET iteration : 0
Scale WET wavepath width with picked time : 0
Blank low coverage after each WET iteration : 0
Blank low coverage after last WET iteration : 0
Blank below envelope after each WET iteration : 0
Blank below envelope after last WET iteration : 1
Interpolate missing coverage after last WET iteration : 0
Disable traveltime grid caching : 1
Enable AWE physical memory page caching : 0
Disable wavepath scaling for short profile : 1

Export modeled WET times to .LST : 0
Limit WET velocity to max. DeltatV velocity : 0
Limit WET velocity to 6,000 m/s : 0
Smooth velocity update before updating tomogram : 1
Allow user editing of maximum valid WET velocity : 1
Hybrid Conjugate Gradient update formula : 1
CG line search with bracketing and Brent's method : 0
More blanking at bottom of tomogram during CG WET : 0
Blank outside borehole tomogram : 0
Don't extrapolate grid rows : 0
Use full Steepest Descent step for Conjugate Gradient : 0
Edit grid cell size : 1
Don't reciprocally average modeled picks during WET inversion : 0
Don't blank tomogram above topography : 0
Blank no coverage areas at tomogram bottom after each iteration except last iteration : 0
Blank no coverage areas at tomogram bottom after last iteration : 1
Blank no coverage on top of borehole line tomogram : 0
Write blanked and mask grids : 0
Store modeled picks after last iteration only : 1
Don't write RMS errors to .STX : 0
Keep WET smoothing record in database : 0
Regard negative shot depth : 0
