Validation

Validation & Governance

PTEM is evaluated as a governed structural measurement instrument, not as a public forecast model.

Validation emphasizes deterministic replay, forward-only computation, frozen inputs, reproducible artifacts, and stable regime behavior under pre-declared governance constraints.

Discipline

Governance controls

forward-only computation

frozen dataset discipline

deterministic replay

pre-declared evaluation posture

no post-hoc tuning

auditability and reproducibility

The purpose of validation is to determine whether the instrument is structurally consistent, replayable, and reviewable. It is not framed as a public operational prediction service.

Evaluation

Event-scale and climatology-scale review

Event-scale evaluation

Review of structural timing, persistence, and replay behavior within historical storm lifecycles under bounded interpretation.

Climatology-scale evaluation

Review of stable regime behavior across basin time, including sparse and variable availability of sustained organization.

Evaluation artifacts

Validation artifacts are available under evaluation access with protected mechanics and raw structural-state exposure withheld.

Product governance

How validation relates to institutional workflows

Phase Atlas, PAC, and Capital Impact are evaluated as governed institutional concepts: structural climatology, deterministic conditioning, and capital-impact comparison under preserved inputs. Public copy describes these layers without exposing internal metric labels, protected operating rules, or raw artifact references.

Transfer diagnostics are used as an additional portability check. See Transfer for the public-safe summary.

Boundary

Non-operational interpretation

PTEM Observatory is descriptive and observational. It does not issue forecasts, warnings, operational guidance, or causal claims. Public validation materials explain governance discipline without exposing implementation-level mechanics.