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Generate static STAC (SpatioTemporal Asset Catalog) JSON at build time, providing a machine-readable API for dataset discovery. Adds a root catalog at /stac/catalog.json and per-dataset collection pages with Zarr and Icechunk asset links.
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Populates cube:dimensions and cube:variables from zarr metadata already fetched at build time. Spatial dimensions get extents from bbox, temporal dimensions are typed, and all variables include their dimension references and units.
The datacube extension schema requires extent on all dimension types. Without it, stac-validator rejects the collections.
aldenks
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Mar 27, 2026
.eleventy.js
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| const isGlobal = | ||
| entry.spatial_domain && entry.spatial_domain.includes("Global"); | ||
| const bbox = isGlobal ? [-180, -90, 180, 90] : [-125, 24, -66, 50]; |
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claude! (this is just hardcoded lol)
.eleventy.js
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| "cube:variables": cubeVariables, | ||
| extent: { | ||
| spatial: { bbox: [bbox] }, | ||
| temporal: { interval: [["2000-01-01T00:00:00Z", null]] }, |
Use statistics_approximate attributes from zarr coordinate arrays instead of hardcoded bbox and temporal start values.
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Summary
/stac/catalog.jsonlists all live datasets; per-dataset collection pages at/stac/{dataset_id}/collection.jsoninclude Zarr and Icechunk asset linksTest plan
npm run buildand verifydocs/stac/catalog.jsonis valid JSON with correct child linksdocs/stac/noaa-gfs-analysis-hourly/collection.json) contain correct assets and metadatastac-validator)