Terrain Awareness

Thanks, when this flight was attempted it was at a latitude of 37° south. Therefore should have been able to pick up the data.

There are places where there are holes in the NASA data. They quote it as being 99.99% coverage or something like that. This usually means that places at the tops of mountains, glaciers, cliffs or narrow canyons can have holes in the data. Try rotating the flight plan or moving it slightly to get it off of the holes which are usually pretty small.

If you can't work around that you could find your own terrain data from a local government source and upload that to use instead. 

OK, thanks :)

Given how frequently we encounter this issue (approx 40% of flights), it seems like sourcing our own data will be necessary.

The problem with that is we work over very large areas - the size of Oregon State - and the cost of each acre (2 points), we will need to negotiate a new price for this to be viable.

Usually the places where the data is missing is a few pixels. Sometimes you can rotate things to deal with it. 

40% is annoying though... 

Assuming you are not actually covering that whole huge area you wouldn't need to process that whole thing. We have people that do 40-60 flights a day each with its own custom terrain sources (or shared source for a few adjacent missions). It seems to work really well for them. 

If you are on an Elite subscription you get more terrain processing per month than you could likely fly even with a team of pilots (10,000 acres).

I think if you get good at clipping out smaller operating areas out of some local governmental data source and dropping it in Maps Made Easy for processing it might solve your issue.  

We have another terrain data source coming online soon which might help. 

Starting with Android version 1.4.0 and iOS version 5.5.0, Map Pilot Pro's Terrain Awareness feature will have options for ASTER, Copernicus, SRTM and any other datasets we can add as built-in Terrain Awareness Data Sources. Copernicus is 30 meter data and is essentially global at 89 to -89 degree coverage (everything but the poles). US users now have access to 10m data from 3DEP/NED.

Having multiple independent terrain data source choice makes it so you have options if one data source has missing data in your operating location. 

We recommend using Copernicus for most work. 

You can read more about the Terrain Data Sources that are currently available here:

https://support.dronesmadeeasy.com/hc/en-us/articles/14697118095380-Built-in-Terrain-Data-Sources