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Link Ground Zero weather lookup coordinates

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nathan
2026-05-16 02:09:11 -07:00
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Docs/TechnicalDesignDocument.md
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@@ -184,6 +184,14 @@ source-backed, generated, validated, packaged, or published tile with center
coordinates, while placeholder/unknown tiles are skipped. Future source-backed
tiles therefore become weather-eligible when their registry entries are added.
Ground Zero weather lookup coordinates are explicit in the tile registry. The
current MVP tile `gz_us_ca_pacifica_utm10n_e544_n4160` uses its tile center,
latitude `37.5925` and longitude `-122.4995`, as the canonical real-world
weather lookup point. `Scripts/generate_tile_weather_manifest.py` reads
`weather_lookup_metadata` when present, falls back to the tile center for
source-backed tiles, and emits the provider routing used by the weather
subsystem.
Open-Meteo is the first global MVP weather source. The provider contract is
stored in `Data/Weather/open_meteo_mvp_source.json`, including the forecast
endpoint, requested current/daily variables, tile lookup rule, and Agrarian