COLD · Extreme value
Extreme cold
GEV on inverted ERA5 t2m + elevation lapse downscale · v1.0 · 2026-04
Russia / Mongolia / China — Siberian extreme to milder steppe
Inverted-GEV fit on monthly minima. Same lapse-rate downscaling as extreme heat.
What ships
Surfaces — 0–1 score derived from the 100-year Tmin.
Every release: 0–1 score · 5-class band · per-pixel uncertainty · input-coverage mask · STAC item · methodology doc.
Inputs
ERA5 monthly min temperature 1991–2020, DEM