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merge: integrate GFS wind PR #459 into current catalog owners

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Bilawal Sidhu committed 2026-09-15 02:16:35 -05:00
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DATA_SOURCES.md
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@@ -15,6 +15,7 @@ How to read this:
| Source | Used for | License / terms | Attribution |
| --------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| **NOAA GFS (wind)** | Global 10 m wind field for the animated Wind layer | U.S. public domain (NOAA); keyless via NOAA Open Data on AWS | "NOAA Global Forecast System (GFS)" (courtesy; not an endorsement) |
| **OpenStreetMap ALPR camera locations** (including DeFlock community mapping) | Optional mapped automatic license-plate-reader camera layer | [ODbL 1.0](https://opendatacommons.org/licenses/odbl/1-0/); commercial use permitted with applicable attribution and database share-alike obligations | [© OpenStreetMap contributors](https://www.openstreetmap.org/copyright); [DeFlock](https://deflock.org) community mapping |
| **Google Map Tiles API** (Photorealistic 3D Tiles) + Places/Geocoding | The 3D globe, voice scene context, and on-demand nearby installation search | Google Maps Platform ToS (proprietary, your own key + billing) | "Google" / "Google Maps" logo — **shown in-app**, required |
| **OpenSky Network** | Primary worldwide live-flight snapshot | Non-commercial research/education license | Schäfer et al., _"Bringing Up OpenSky"_, IPSN 2014 + opensky-network.org |
@@ -141,6 +142,20 @@ transaction quota. Requires a free `FIRMS_MAP_KEY`
(https://firms.modaps.eosdis.nasa.gov/api/map_key/); the layer is empty without it.
The former bundled 2026-05-25 snapshot was removed 2026-07-16.
### NOAA GFS wind
The optional **Wind** layer animates the global 10 m wind field from NOAA's
Global Forecast System (GFS). The `/api/wind` server-side proxy selects the
latest available 0.25° cycle, reads its `.idx` inventory, byte-range fetches only
the `UGRD`/`VGRD` 10 m GRIB2 messages (≈1 MB each instead of the whole ~500 MB
file), decodes them with ecCodes (WASM), resamples to a compact grid (1° by
default), and serves a manifest plus a Float32 U/V payload. It is keyless, cached
per cycle for an hour, and is a **forecast, not an observation**: the particles
show model flow, not measured wind. Rendering is a 2D canvas particle overlay
advected by the field and projected through the Cesium camera; globe-occluded
particles are skipped. NOAA GFS data is U.S. public domain; the credit above is a
courtesy and does not imply endorsement.
### Natural Earth physical regions (`natural_earth/`)
Curated from the **Natural Earth 10m physical vectors** (https://www.naturalearthdata.com/ —