[kylebarron]

Note

This PR was written by Claude (Claude Code), not by @kylebarron.

The globe-view prototype (#563) added a COG globe example, but nothing showed the Zarr path on a globe. This adds examples/zarr-globe, a copy of dynamical-zarr-ecmwf that animates the global ECMWF IFS ENS 2 m temperature forecast on MapLibre's globe projection with deck.gl interleaved. The shared globe render path already handles ZarrLayer, so no library changes are needed.

Changes

• New examples/zarr-globe (package deck.gl-zarr-globe-example), with the same data pipeline and controls as dynamical-zarr-ecmwf. For the globe it follows cog-globe: projection="globe", parameters: { depthCompare: "always" } on the layer so the raster does not z-fight the basemap sphere, and a black background around the globe.
• Uses the hosted Dark Matter style with beforeId: "boundary_country_outline", as cog-globe does, instead of copying the flat example's custom water-less style.
• Docs examples page: a "Globe View" card in the Zarr section, with a card image.
• pnpm-lock.yaml: adds the new importer only. The docs workflow and the pnpm workspace already pick up examples/*.

Tests

• Example-only change, no new tests. pnpm --filter deck.gl-zarr-globe-example typecheck and build pass, pnpm install --frozen-lockfile accepts the lockfile, and pnpm check is clean.
• Checked in Chrome: the forecast drapes on the globe with country borders and labels on top, with no z-fighting.

Notes

• Near the globe's limb the raster can stop short, leaving slivers of basemap. The ECMWF grid is a single 721x1440 level in 320x320 chunks, so the whole globe is 15 tiles of 80°x80°, and the globe traversal's 11-point bounding box likely under-encloses tiles that large and culls partly visible ones near the limb. That would be in the shared globe path, so it is not addressed here.

Closes #568

🤖 Written by Claude Code