BirdCast: Live and forecast maps of bird migration over the United States. Light Pollution Map: Find dark skies: light pollution maps from satellite data.
| BirdCast | Light Pollution Map | |
|---|---|---|
| Category | Environment & Wildlife Maps | Environment & Wildlife Maps |
| Coverage | Contiguous United States | Worldwide |
| Updates | Live / real time | Yearly |
| Data source | NEXRAD weather radar | VIIRS satellite data and sky brightness models |
| Made by | Cornell Lab of Ornithology, Colorado State University and UMass Amherst | Jurij Stare |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Works well on phones | Works well on phones |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with BirdCast
- Live migration maps from radar
- Three-night migration forecasts
- Local migration dashboards
What you can do with Light Pollution Map
- Satellite night lights by year
- Sky brightness model
- Observer measurements
- Aurora overlay
Summary based on public information. Check each map's website for current features and prices.