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Base minimumDistanceAboveSurfaceInMeters on altitude_agl

peterdesmet opened this issue · comments

commented

There is a field altitude_agl in the tracking data (see https://github.com/inbo/bird-tracking-etl/blob/master/vignettes/bird-tracking-etl.Rmd#output-format) with the definition:

Reported GPS altitude MINUS terrain elevation on the coordinate based on Digital Elevation Model data used in the e-ecology database

Would probably be good to base minimumDistanceAboveSurfaceInMeters on that rather than altitude. Should probably compare the numbers a bit to test.

commented

Discussed with @tucotuco, best DwC use is still as we did it before:

  • minimumElevationInMeters: 0 (for all records)
  • minimumDistanceAboveSurfaceInMeters: recorded, uncorrected altitude