Documentazione
Come funziona, fonti dati e domande frequenti.
Fonti Dati
Weather Data
All meteorological data is sourced from Open-Meteo. We specifically utilize the "Best Match" aggregation which blends:
- ICON-EU (~7 km resolution): Primary meso-scale model for the Mediterranean.
- ECMWF IFS (~9 km resolution): The global gold standard for medium-range reliability.
Variables Fetched
Volcanic Data
We analyze the official INGV Catania RMS Tremor Chart in real-time.
Our servers fetch the latest spectrogram image (`RMS_Etna/0.png`) from INGV every hour and perform a pixel-level analysis to determine the tremor curve's position.
- Green
Stable - Yellow
Elevated - Red
Eruptive
Algoritmi
Outdoor Safety Index (OSI)
Our proprietary Safety Index (0-3 scale) aggregates multiple risk factors into a single actionable score. A "SEVERE" (2.0+) rating triggers when any single critical threshold is met (e.g. wind gusts > 80km/h or lightning probability > 60%).
High Altitude Corrections
Standard models predict wind at 10m above flat ground. We apply a 1.3x multiplier for POIs on ridges (e.g. Schiena dell'Asino) to account for terrain acceleration.
Global models often underestimate snow accumulation in craters. If temps are <0°C and precip occurred, we enforce a minimum snow depth baseline.
FAQ
Privacy
etna.now is a stateless Progressive Web App.
- No Personal Data Collected (PII)
- No GPS Tracking History
- No Advertising Cookies
Attribuzioni
Legal & Licenses