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Statics azimuthal QC is an interactive visualization and editing module for azimuthal static correction maps produced by the surface-consistent statics workflow. It displays per-azimuth static shift grids, allows the user to inspect and edit corrections spatially, apply trend removal, extrapolate values into ungathered areas, and selectively zero out erroneous corrections. The edited corrections are passed downstream to the processing sequence as updated azimuthal statics items.
Use this module after running an azimuthal surface-consistent statics solution to verify that each azimuth sector has geologically consistent static patterns, to remove acquisition-related spatial trends, and to QC gather alignment after the corrections are applied. The module can also import previously exported .rstataz files for re-inspection without re-running the statics solver.
Handle to the SEG-Y file used to display CS (common source) and CR (common receiver) gathers in the interactive QC panel, showing how the azimuthal corrections affect gather alignment.
The azimuthal static correction dataset produced by the surface-consistent statics solver. Each azimuth sector has its own source and receiver static map. This is the primary input that the module displays and allows the user to edit.
Trace header table providing source and receiver coordinates and azimuth assignments. Used to build the spatial map of static values and to link individual gathers to their azimuth sector.
Path to a previously saved .rstataz binary file containing azimuthal static corrections. Populated automatically when the Read statics .rstataz file custom action is used, allowing statics from a prior run to be inspected or re-edited without re-running the solver.
Selects which azimuth sector to display and edit. The available options are populated dynamically from the azimuth sectors defined in the input azimuthal statics item. Switch between azimuths to compare static maps and identify any sector with anomalous corrections before applying them to the data.
Container grouping the parameters that control how azimuthal static corrections are overlaid and applied in the gather display panel.
Reference two-way time (s) at which the static correction overlay line is drawn on the CS/CR gather display. Default: 0 s. Set this to the approximate two-way time of the target reflector to visually assess how well the corrections align events at that depth level.
Vertical exaggeration factor applied to the static shift overlay on the gather display. Default: 1. Increase to amplify the visual representation of small corrections so they are easier to inspect on the gather; the actual applied correction is not affected.
When enabled, the azimuthal static correction curve is drawn on top of the CS and CR gather panels. Default: off. Enable to visually compare the correction shape with the reflector moveout and confirm that the corrections are applied in the correct direction.
Container grouping the parameters that govern how the azimuthal static corrections are applied to the output gathers during sequence execution.
Maximum allowed static shift (s) that will be applied to any trace. Default: 0 s (disabled). When set to zero the clip is not applied. Set to a positive value to prevent outlier corrections from creating large time shifts; typical values are 0.02–0.05 s depending on the expected near-surface variability.
When enabled, the surface-consistent component of the azimuthal static correction is included in the output. Default: on. Disable to pass through data without applying the surface-consistent part, for example when testing only the trim component in isolation.
When enabled, the residual trim static component is included in the output correction. Default: on. Disable to omit the trim component and apply only the surface-consistent corrections; useful when evaluating the contribution of each component separately.
When enabled, the structural (geology-related) component stored in the statics item is included in the applied correction. Default: off. Enable only if the statics solution explicitly separated structural and near-surface components and you wish to apply both together.
Controls the sign convention used when shifting traces: Up (default) shifts events to earlier times (upward on a display), which is the conventional direction for applying positive static corrections on land data. Change to Down only if the statics values in the input item use the opposite sign convention.
When enabled, a faster but less accurate interpolation method is used when applying static corrections between grid nodes. Default: off. Enable on large 3D datasets where processing speed is more important than interpolation precision at sparse grid locations.
Container grouping the parameters that control the spatial trend removal operation applied to the azimuthal static map. Trend removal subtracts a smoothed version of the static field to eliminate long-wavelength acquisition footprint or regional tilt from the corrections, preserving only the short-wavelength near-surface component.
Cell size (m) of the spatial grid used during trend estimation and extrapolation. Default: 100 m. Finer grids capture more spatial detail but increase computation time. Set to a value compatible with the bin spacing of your survey.
Spatial smoothing radius (m) applied when computing the long-wavelength trend to be removed. Default: 2000 m. Larger values remove broader trends; smaller values remove only localized low-frequency patterns. Adjust based on the spatial scale of the acquisition artifact you wish to suppress.
Opens a file browser to select a previously saved binary .rstataz file and loads its azimuthal static corrections into the module. Use when you want to inspect or re-edit a statics solution from a prior processing run without re-executing the full statics solver.
Removes the statics data loaded via the Read statics .rstataz file action, reverting the module to use the live azimuthal statics item from the input data connection.
Computes a spatially smoothed trend from the current azimuthal static map using the Grid size and Smooth parameters, then subtracts it from the map. Run this action after reviewing the static map and confirming the presence of a long-wavelength acquisition footprint or regional bias that should be removed before the corrections are applied.
Saves the current (possibly edited) azimuthal static corrections to a binary .rstataz file. Use this to archive the QC-approved corrections so they can be reloaded in future sessions or shared with other processing steps.
Exports the azimuthal static corrections as a plain-text ASCII file. Use for reporting, cross-validation with external tools, or importing into third-party applications that cannot read the binary .rstataz format.