Domains¶
All boards run the same engine: ERA5 + ECMWF IFS forcing, about 10 000 terrain units, TPS2 downscaling and the FSM snow model. They differ in extent, resolution, forecast product and extras. The live list is on the SnowMapper portal.
| Board | Region | Extras |
|---|---|---|
| European Alps | France · Switzerland · Italy · Austria · Slovenia | MODIS and Sentinel-2 snow cover |
| Kazakhstan | Kazakhstan and the northern Tien Shan | MODIS and station data assimilation, ensemble forecast |
| Central Asia | Tien Shan · Pamir · Hindu Kush | cut to 295 hydrological basins; basin climatology |
| Hindu Kush – Karakoram – W Himalaya | Indus · Helmand · western Ganges headwaters | bridges the Central Asia and Nepal domains; disputed borders dashed |
| Nepal | Nepal Himalaya | ensemble forecast, warnings, season-to-date anomalies, station validation |
| Afghanistan | Hindu Kush · Pamir · Koh-i-Baba | 9 km IFS forecast, cut to the national border |
| Kyrgyzstan | Tien Shan · Alay · Issyk-Kul | 9 km IFS forecast, national border, MODIS; Sentinel-2 over Too-Ashuu, Dolon and Jyrgalan |
| Jyrgalan valley | Terskey Ala-Too, east of Karakol | resort-scale: 30 m terrain, 9 km IFS, MODIS and Sentinel-2 |
Common setup¶
| Item | Setting |
|---|---|
| Past weather | ERA5 reanalysis, hourly, pressure levels 300/500/700/850/1000 hPa |
| Forecast | ECMWF IFS deterministic (0.1° or 0.25° depending on the board), ensemble where noted |
| Terrain | Copernicus GLO-90 DEM (GLO-30 for resort-scale boards) |
| Terrain units | 10 000 per board (k-means on elevation, slope, aspect, sky view, position) |
| Rain/snow | wet-bulb, −0.5 to +2.5 °C, all rain above +4 °C air temperature |
| Snow model | FSM1 (fsm-rs), hourly, daily output |
| Season start | 1 September in most boards |
| Rebuild | once a day |
Each board's Info tab lists its exact run: number of units, time range, bounding box and the variables available.