Backtest map, January to March 2026
Backtest error (RMSE), NO₂ µg/m³
Lighter = smaller error against the training target. Grey cells have no labelled hours.
- Pandora
- AERONET
- EPA monitor
Backtest window2026-01-01 → 2026-03-31
Backtest error (RMSE), NO₂ µg/m³
Lighter = smaller error against the training target. Grey cells have no labelled hours.