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TilBlechschmidt / ELSA

Tool to visualise emergency landing spot reachability for general aviation aircraft
https://elsa.blechschmidt.dev/
MIT License
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No satellite data outside HH jurisdiction #3

Closed TilBlechschmidt closed 2 years ago

TilBlechschmidt commented 2 years ago

While the LGV satellite imagery is normalised and looks pretty good, it does not provide information for regions outside the HH jurisdiction. Ideally, we should fall-back to some other source that provides global data.

TilBlechschmidt commented 2 years ago

Request to the Bundesamt für Kartographie und Geodäsie resulted in a rejection. They only provide data for either money or important people 😢

Similarly, the SH cartography office provides a DOP20 WMS API — unfortunately, this one does not contain data for every zoom-level and the imagery is somewhat blurry. However, it showed that ?transparent=true is possible which allows us to use the Mapbox provided satellite imagery without any complicated merging logic!