> 18. 2. 2017 v 9:20, Benedikt Hallinger via Therion <therion@speleo.sk>: > > Based on what you have said, i would assume that the problem source lies in > therion itself summarizing all centreline dates into one survey average date, > and not just by centerline as i would assume, when each centerline has a date > specification. > > The main issue here is, that we have surveys which were taken in the 1950s > and extended with an additional centerline in 2000s.
date and date - each survey has calculated its own declination according the date it was surveyed. The position of point for which the declination is calculated is averaged. m.s. _______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion