Alta Ski Area — Snow Preservation
Matched OpenSkiMap ski area: Alta Ski Area (142 mapped runs, 19963 m of vertical drop analyzed).
Score version: ASPECT_V3_FIXED_COORDS · calculated Sep 27, 2026 · source: OpenSkiMap/OpenStreetMap
| Alta Ski Area | |
|---|---|
| Snow Preservation Score (0=poor, 100=excellent) |
71 |
| Solar Exposure Score | 29 |
| Overall Confidence | GOOD |
| Aspect advantage ratio (actual ÷ neutral-baseline irradiance) |
0.758 |
| Mean fall-line bearing | 328.9° |
| Orientation alignment (0=scattered, 1=fully consistent) |
0.62 |
| Mean slope (mapped, weighted) | 22.1° |
| Ski-season irradiance actual vs. neutral baseline (kWh/m²/day) |
3.17 vs. 4.18 |
Terrain orientation (vertical-drop-weighted)
Each spoke is a compass direction; length is the share of mapped, snow-holding terrain facing that way. A tall, narrow rose means the mountain consistently faces one direction; a round, even rose means it's scattered across every aspect.