Stacking velocity¶

The effective seismic velocity that best fits a hyperbolic normal-moveout curve to reflection travel times across offsets in a common-midpoint gather.

Version: v1 · 2026-09-08 · History
Domain-specific #: 6860
Origin domain: exploration geophysics
Subdomain: seismic velocity analysis

Core Idea¶

Stacking velocity is the velocity parameter producing the best hyperbolic normal-moveout alignment for a reflection event before traces are stacked. Candidate velocities correct offset-dependent arrival times; the value maximizing event coherence flattens the reflection and enhances it when corrected traces are summed. The abstraction is therefore identified by a declared carrier, a transformation or constraint over that carrier, and an invariant that tells an analyst whether the named structure is genuinely present.

The load-bearing residual is not the broad topic of exploration geophysics. It is processing-derived effective velocity optimized for CMP reflection alignment. That residual remains recognizable when examples, notation, scale, or implementation change, but it disappears if the carrier is mistyped, the condition that the velocity belongs to a declared event, time and hyperbolic NMO approximation and is not automatically interpreted as an interval rock velocity fails, a neighboring object is substituted, or notation and topical resemblance replace the constitutive test.

Scope of Application¶

Stacking velocity belongs to exploration geophysics and is useful where the analyst can specify a common-midpoint seismic gather, source-receiver offsets, two-way travel times, reflection event, hyperbolic moveout model, trial velocities, semblance or coherence and subsurface layering, then evaluate the velocity belongs to a declared event, time and hyperbolic NMO approximation and is not automatically interpreted as an interval rock velocity. The scope is broad within that domain but bounded by the need for the velocity belongs to a declared event, time and hyperbolic NMO approximation and is not automatically interpreted as an interval rock velocity. The entry records a descriptive analytical identity; practical use requires the governing domain's evidence, standards, and safety obligations.

Clarity¶

The abstraction clarifies a crowded vocabulary by making the velocity belongs to a declared event, time and hyperbolic NMO approximation and is not automatically interpreted as an interval rock velocity the center of the account. A claim should name the carrier, the governing operation or relation, the applicable assumptions, and the recognition test. A bare label is insufficient because the name Stacking velocity can be used for a formal identity, an implementation, or a neighboring result unless carrier and convention are stated.

Manages Complexity¶

Without the abstraction, an analyst must reason directly over many local details: the carrier roles, admissibility assumptions, competing conventions, derived invariants, boundary cases, and proof or validation obligations specific to Stacking velocity. Stacking velocity compresses them into the roles in the structural signature. That compression permits comparison across instances without erasing the variables that determine validity. It also exposes which details may be varied safely and which are constitutive.

Abstract Reasoning¶

Identify the carrier. State what the elements, states, objects, or observations are: a common-midpoint seismic gather, source-receiver offsets, two-way travel times, reflection event, hyperbolic moveout model, trial velocities, semblance or coherence and subsurface layering. Reject examples whose alleged carrier belongs to a different problem. 2. Lock the constitutive rule. Express the velocity belongs to a declared event, time and hyperbolic NMO approximation and is not automatically interpreted as an interval rock velocity independently of one notation or implementation.

Knowledge Transfer¶

Knowledge transfers strongly among subfields of exploration geophysics because they reuse a common-midpoint seismic gather, source-receiver offsets, two-way travel times, reflection event, hyperbolic moveout model, trial velocities, semblance or coherence and subsurface layering, Candidate velocities correct offset-dependent arrival times; the value maximizing event coherence flattens the reflection and enhances it when corrected traces are summed., and type the carrier, state every parameter and convention in the definition, test that the velocity belongs to a declared event, time and hyperbolic NMO approximation and is not automatically interpreted as an interval rock velocity, compare the nearest accepted identity, and report counterexamples, uncertainty, and limiting cases.

Relationships to Other Abstractions¶

Current abstraction Stacking velocity Domain-specific

Parents (1) — more general patterns this builds on

Stacking velocity is a kind of Measurement Prime

The proposed strict upward parent is prime:measurement.

Hierarchy path (1) — routes to 1 parentless root

Stacking velocity → Measurement

Neighborhood in Abstraction Space¶

Stacking velocity sits in a crowded region of the domain-specific corpus (37^th percentile for distinctiveness): several abstractions share nearly its structure, so a description that fits it tends to fit its neighbors too.

Family — Seismology, Geophysics & Surveying (25 abstractions)

Nearest neighbors

Computed from structural-signature embeddings · 2026-09-08