I think I am doing this correctly, but I’d appreciate anyone confirming this.
Flight: 3DR Solo
GCP: 4 with elevation ranging between 64’ and 67’ (mostly flat AOI). GCP collected with GPS/RTK using NAD83 FIPS2001 Massachusetts Mainland USFT, NAVD88 GRS80 12b.
The images are tagged with what I assume is WGS84 coordinates. The elevation values of the images are around 63, I am unclear what this value is relating to; relative elevation, GPS elevation etc.
Assuming I want to keep the output the same as my GCP, what should I be selecting for vertical output?