New VineyardElf module: NanoSatellites — a satellite assistant for winegrowers based on Sentinel-2 data (ESA/Copernicus).
What can NanoSatellites do?
- NDVI (Normalized Difference Vegetation Index) — a vegetation health indicator computed from Sentinel-2 bands B04 (red) and B08 (near infrared)
- NDVI map — a color overlay on a Leaflet map: from brown (bare soil) through yellow and light green to dark green (lush vegetation)
- Per-parcel statistics — average, min and max NDVI broken down by individual vineyard parcels
- Health status — automatic assessment: healthy (NDVI ≥ 0.5), moderate (0.3–0.5), stressed (< 0.3)
- Daily cron — automatic download of new scenes (Sentinel-2 passes every 5 days)
- Dark mode — dark theme with automatic system preference detection
How does it work?
NanoSatellites connects to the free Copernicus Dataspace API (ESA). Sentinel-2 photographs the entire Earth every 5 days at 10m/pixel resolution. The dashboard fetches the latest low-cloud scene and computes vegetation indices for the defined vineyard parcels.
What’s next?
We plan to extend it with:
- NDWI (Normalized Difference Water Index) — water stress monitoring
- NDMI (Normalized Difference Moisture Index) — soil and leaf moisture
- True Color — natural RGB satellite imagery
- Multi-season comparisons and anomaly alerts
- Integration with VineyardElf weather alerts
The dashboard is available in the NanoSatellites tab in the VineyardElf panel.