Data Sources & Credits
Every source behind the charts, weather, terrain and procedures in Flight Kneeboard, and the licence each one is used under. A pilot should be able to see which agency a number came from.
Required credits
These are listed first because their licences bind: the basemap is on from first paint, the water mask is an adaptation we redistribute, and Leaflet ships inside the page. They also appear on the map itself, in the attribution control at the bottom of the screen.
| Source | Used for | Licence |
|---|---|---|
| OpenStreetMap contributors | Basemap data | ODbL 1.0 |
| Esri, HERE, Garmin, OpenStreetMap contributors, and the GIS user community | Basemap tiles (Light and Dark Gray Canvas) | esri.com |
| ESA WorldCover 10 m v200 | Water mask | CC BY 4.0 |
| Esri | Satellite basemap tiles | esri.com |
| Leaflet 1.9.4 | Mapping library | BSD-2-Clause |
© ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium. Flight Kneeboard reclassifies that product into a binary land/water mask; the mask is a modified version of the data and is not endorsed by ESA.
Aeronautical and weather data
US Government sources, in the public domain. Credited so you can see which agency a number came from.
| Source | Used for | Where |
|---|---|---|
| FAA | Charts, NASR, CIFP, d-TPP, weather cameras | faa.gov |
| NOAA / NWS | METAR/TAF, MRMS & nowCOAST radar, GFS model data | noaa.gov |
| NASA GIBS | Satellite imagery | nasa.gov |
| AWS Terrain Tiles (SRTM, NASADEM, 3DEP) | Terrain elevation | registry.opendata.aws |
| Iowa Environmental Mesonet, Iowa State University | LAMP MOS forecasts | mesonet.agron.iastate.edu |
| Natural Earth | Offline coastlines & borders | naturalearthdata.com |
Natural Earth is public domain; its terms state that crediting the authors is unnecessary. It is listed here for completeness only.
How current is any of it?
Charts run on a 56-day cycle and procedures on a 28-day cycle. The app shows the effective and expiry dates for every product it holds under Settings › Data Source, so you can check what you are actually flying on rather than assuming. More about the cycles.