Hey Guys,
I am currently running the gpt over a large amount of files. Since they cover the same area, will the DEMs be downloaded again or are they reused? If not, can I somehow change the settings or should I just download the whole DEM once and set “external DEM”?
The used DEM is Aster 1sec GDM

With best regards,

ASTER is not automatically downloaded. You have to download it yourself and place it in the aux/dem folder.
Once it is there, it will be reused. As an alternative you can use it as external DEM.

In general: Any DEM which is already downloaded, will be reused. There is still a progress bar at the bottom every time but it simply checks if there is a DEM available.

Or did I miss your point?

No you answered my point right away! Thank you :slight_smile: I selected ASTER 1sec GDEM in the Terrain-Correction Tab before saving my graph, what would be used as DEM if I did not download anything before?

I believe, a flat surface is assumed when the given DEM is not found.

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Thanks again :slight_smile: