Northstar at Tahoe — Snow Preservation
Matched OpenSkiMap ski area: Northstar at Tahoe Resort (125 mapped runs, 17852 m of vertical drop analyzed).
Score version: ASPECT_V3_FIXED_COORDS · calculated Sep 27, 2026 · source: OpenSkiMap/OpenStreetMap
| Northstar at Tahoe | |
|---|---|
| Snow Preservation Score (0=poor, 100=excellent) |
68 |
| Solar Exposure Score | 32 |
| Overall Confidence | GOOD |
| Aspect advantage ratio (actual ÷ neutral-baseline irradiance) |
0.763 |
| Mean fall-line bearing | 352.0° |
| Orientation alignment (0=scattered, 1=fully consistent) |
0.63 |
| Mean slope (mapped, weighted) | 15.5° |
| Ski-season irradiance actual vs. neutral baseline (kWh/m²/day) |
3.32 vs. 4.35 |
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.