GammaGrid Inversion - Aliases and Parameters

GammaGrid Inversion – Aliases and Parameters

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// DATABASE AND GRID ALIASES

gridDirectory ..\demo_data\airborne_spectrometry\gammaGrid_inversion\GRIDS

dataName potassium.PD // field to grid (K, U or Th)

errorName var_k.PD // error (variance) field

temperatureName temperature.PD // temperature field

pressureName pressure.PD // pressure field

altimeterName altitude.PD // altimeter field

eastingName easting.PD // easting

northingName northing.PD // northing

lineTypeName lineType.PD // line type field (2-lines, 4-ties)

demGrid dem // dem grid name

referenceGrid potassium // reference grid name

outputGrid gammaGrid_k_2 // output grid name

// PARAMETERS

surveyHeight 60 // survey height (m)

lineDirection 90 // line direction (0-90)

sampleInterval 62.0 // along-line sample interval (m)

smoothWeight 2.0 // smoothing weight

refModelWeight 0.0 // reference model weight

tileSize 120 // grid tile size (cells)

padSize 20 // pad size in cells ( > max line spacing)

trimMargin 4 // margin trim (cells)

fieldType 1 // 1 – potassium

// 2 – uranium

// 3 – thorium

maxRadius 360 // max radius (m) for contributing prisms

maxIterations 2000 // maximum number of iterations

relTolerance 1e-12 // relative tolerance (for convergence)

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