Geophysics Tools
Browse all available geophysics tools.
Available tools
- Borehole Depth Reference Shift Apply an explicitly signed logging-zero offset to a borehole depth on a downward-positive axis.
- Borehole Dip Apparent Thickness Term Tool Project supplied along-hole apparent thickness onto a bed normal using the explicit angle between borehole and normal.
- Borehole Log Reversed Depth Axis Flag Tool Flag the endpoint direction of an explicitly supplied depth axis without reordering or interpreting a log.
- Borehole Log Two Depth Gradient Tool Calculate borehole log two depth gradient from explicit caller-supplied inputs.
- Electrical Resistivity Array Geometric Factor Tool Four-electrode apparent resistivity using a caller-derived signed array geometry factor.
- Electrical Survey Current Reversal Stack Pair Tool Separate a supplied equal-magnitude opposite-current voltage pair into odd signal and even additive offset without estimating resistivity.
- Geophone Natural Frequency Response Ratio Tool Ideal moving-coil geophone velocity-response magnitude normalized to its high-frequency sensitivity.
- Geophone Polarity Flip Apply an explicit geophone polarity reversal without inferring sensor orientation.
- Geophysical Grid Nodata Cell Token Tool Choose explicit geophysical grid value text or a supplied no-data marker without conflating valid zero and missing cells.
- Geophysical Instrument Gain Correction Remove an explicit instrument zero and signed gain without determining calibration coefficients.
- Geophysical Spatial Sampling Nyquist Margin Tool Ideal band-limited Nyquist spacing condition; the equality boundary does not guarantee recovery of an unknown phase.
- Gravity Datum Offset Contribution Tool Apply a signed supplied gravity datum correction and unit factor without estimating a geophysical datum.
- Gravity Drift Anchor Weight Tool Calculate gravity drift anchor weight from explicit caller-supplied inputs.
- Gravity Freeair Height Correction Factor Tool Apply a caller-supplied signed free-air correction gradient; no normal-gravity model or Bouguer correction is included.
- Gravity Latitude Correction Input Apply a caller-supplied latitude correction under an explicit add/subtract convention without calculating a gravity model.
- Gravity Tidal Supplied Correction Term Tool Subtract a supplied gravity tide signal and add a supplied drift correction, in identical gravity units.
- Magnetic Base Rover Difference Remove an explicitly measured base-station drift from a compatible rover magnetic reading.
- Magnetic Declination Grid North Offset Tool Add explicit clockwise-positive magnetic-to-true and true-to-grid bearing offsets and wrap to [0,360) without a magnetic model.
- Magnetic Heading Reference Offset Tool Apply an explicit signed heading correction and wrap to [0,360), without a magnetic-field model.
- Magnetic Inclination Vector Component Tool Magnetic north/east/down components, inclination positive downward and declination clockwise from north, all angles radians.
- Magnetic Survey Base Station Drift Term Tool Remove a synchronous base-station deviation; timing alignment and spatial representativeness must be established externally.
- Magnetometer Diurnal Linear Reference Term Tool Subtract an explicitly linearly interpolated magnetometer reference field from a supplied observation without estimating secular or spatial corrections.
- Magnetotelluric Apparent Resistivity Term Tool Scalar apparent resistivity |Z|²/(mu*omega) for supplied E/H impedance in ohms, angular frequency in rad/s and permeability in H/m. Phase uses atan2 and zero impedance is rejected; this does not invert an Earth conductivity model.
- Polarization Component Azimuth Return a component-vector azimuth clockwise from north, identifying the undefined zero-vector direction explicitly.
- Potential Field Upward Continuation Mode Factor Tool One planar Fourier mode upward continuation exp(-|k|h); spatial wavenumbers are radians per length.
- Resistivity Pseudodepth Array Label Tool Preserve explicit electrical-array and pseudodepth-convention metadata without equating pseudodepth with investigation depth.
- Seismic Arrival Time Residual Return observed-minus-predicted seismic arrival time on the same clock without locating a source.
- Seismic Attenuation Q One Frequency Term Tool Constant-Q amplitude attenuation exp(-pi*f*t/Q), excluding geometric spreading.
- Seismic Component Polarity Factor Tool Apply an explicit channel polarity factor without identifying a seismic event.
- Seismic Geometric Spreading Distance Factor Tool Explicit amplitude power-law spreading, exponent 1 for spherical and 1/2 for ideal cylindrical spreading; no attenuation included.
- Seismic Pick Origin Gap Tool Calculate seismic pick origin gap from explicit caller-supplied inputs.
- Seismic Pick Time Precision Budget Tool Additive worst-case supplied pick-time envelope, not a statistical confidence interval or event location.
- Seismic Pick Uncertainty Window Width Tool Report width and midpoint of an explicit seismic pick-time uncertainty bracket without assigning a confidence distribution.
- Seismic Polarity Convention Reflection Tag Tool Explicit coefficient sign transformation, without assuming an SEG display or wavelet convention.
- Seismic Sample Pick Residual Tool Compare a supplied seismic pick with an explicit sample grid without event detection or hazard inference.
- Seismic Sampling Slowness Alias Margin Tool Compare explicit plane-wave slowness with spatial Nyquist limit 1/(2*f_max*receiver_spacing) in compatible units.
- Seismic Trace Muted Sample Flag Tool Check one supplied zero-based seismic sample index against an explicit half-open mute span without modifying trace amplitudes.
- Seismic Trace RMS One Window Term Tool Window RMS optionally after demeaning; denominator is N, not a sample-variance degrees-of-freedom correction.
- Seismic Two Way Depth Pair Convert explicit two-way travel time to depth under a supplied constant velocity and vertical straight-path assumption.
- Snell Ray Horizontal Slowness Term Tool Snell horizontal slowness and real transmitted angle measured from interface normal; evanescent cases are rejected.
- Survey Loop Closing Share Tool Calculate survey loop closing share from explicit caller-supplied inputs.
- Travel Time Pick Precision Gap Tool Calculate travel time pick precision gap from explicit caller-supplied inputs.