pointbreak — QA contact sheets

What this is. A QA instrument. Deterministic captures of the pointbreak wave model at clocks pinned by the model itself, laid out so a defect is visible by scanning rather than by hunting. Every cell is labelled with the exact URL hash it was taken at and links into the simulator at that state, so any frame here can be reopened and argued with.

What this is not. Not a validation. The model is unvalidated against measured surf — a first validation pass, model residuals against an independent record of a specific day, is the largest open gap in the project. These sheets check the model against itself: that it is deterministic, that its phases differ, that something breaks where something should. They cannot tell you whether it matches Pleasure Point. Not a surf report, not a forecast, and not usable for any decision about entering the water.

What a still cannot show. No frame here supports a claim with a verb of motion in it. What each cell states is a position at a known clock, read out of the model; the frames are ordered by the model's own clock rather than by inspection, so a reader may compare those positions across a row. The pictures themselves still cannot tell you which way anything is going, and nothing on these pages is measured off them except the pixel foam fraction, which is labelled as such.

Licence. Code, docs and these renders are MIT (© 2026 Andy Edmonds). The frames are Produced Works under ODbL — the coastline geometry they are drawn over is OpenStreetMap-derived, and the seabed is NOAA NCEI (public domain). Attribution below is required; share-alike is not triggered by a rendering. The full file-by-file split is LICENSES.md in the repository.

Coastline & spots: OpenStreetMap contributors, ODbL 1.0 · Bathymetry: NOAA NCEI Monterey Bay 1/3″ coastal DEM, NAVD88 · Seasonality: CDIP MOP v1.1 SC116 hindcast (Scripps).