Hi,
I’m using FlightR 0.4.7 to analyse geolocation from Arctic-nesting birds.
Because my study site is located above the Arctic circle, I did a rooftop calibration in the “south” prior to the field season. This works well and the make.calibration function gives good estimates.
> Calibration.periods<-data.frame(
+ calibration.start=as.POSIXct("2016-05-07"),
+ calibration.stop=as.POSIXct("2016-05-17"),
+ lon=-68.21627, lat=48.57245)
> print(Calibration.periods)
calibration.start calibration.stop lon lat
1 2016-05-07 2016-05-17 -68.21627 48.