It's not quite the same thing as uncertainty in the datum itself. Crust movements simply lead to things being somewhere else relative to a global datum (aka they have moved), so a new measurement of the position for the same object would return the correct current position and theoretically if the original position was measured you could simply apply a translation based on the crust movement to get the correct current coordinates.
Am 20.12.2019 um 15:36 schrieb Jóhannes Birgir Jensson: > Well the current issue in Iceland is a error of 50 cm between 1993 and 2016 > due to crust movements. So it's less than 2 meters but more than one cm. What > is your accuracy limit if 2m is just unacceptable but a centimeter is? > > > 19. desember 2019 kl. 17:58, skrifaði "Greg Troxel" <g...@lexort.com>: > >> Interesting about the datum history. But this is the cm strawman I >> wasn't talking about, not the 2m issue. > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk
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