MetForge Model Diagnose

Turn model output into a falsifiable diagnosis. Prefer the next decisive check over a long catalog of generic plots.

Diagnostic workflow

State the test contract:
- property or mechanism being tested
- expected solution, symmetry, invariant, or benchmark
- control and changed factor
- diagnostic time window and success criterion
- observation that would falsify the working explanation
Inventory the actual run configuration and outputs. Compare namelists, compiler/precision, solver, grid, timestep, domain, boundary conditions, physics, diffusion, filters, and decomposition before interpreting differences.
Establish the reference. Prefer an analytic solution, converged/high-resolution run, published benchmark, or internally consistent control. Do not call one arbitrary run “truth” without qualification.
Climb the diagnostic ladder below. Stop when the evidence isolates the failure or when the next step requires new data.
Classify each result as expected, numerically suspicious, physically inconsistent, configuration-dependent, or inconclusive.
Produce an evidence table and recommend one next experiment with the largest discrimination value.