On Mon, 8 Jun 2020 at 12:41, Mateusz Konieczny via Tagging < [email protected]> wrote:
> > Jun 8, 2020, 13:18 by [email protected]: > > Have these objects left traces or not? > https://www.bbc.co.uk/news/uk-wales-52911797 > Are they mappable? > > But verifying it seems problematic at best. > Unless there is a requirement that anything mapped by aerial imagery must be compared in two independent sets of imagery, I don't see a problem. We have aerial imagery of these (but whether or not it is ever made available to us under appropriate copyright terms is another matter). Verification is a matter of somebody else looking at the same imagery and reaching the same conclusion. > > I see why mapping it could be exciting but It am very dubious about it and > would be against doing that. > I doubt the imagery will be released in a form we can use. But it might be. > > (for reference in Poland there is now a discussion about importing index > of archeological sites,decision seems to be to import ones where terrain > shape remained and to not > import ones visible only as discoloration of vegetation visible on aerial > images) > I wouldn't map vegetation discolouration as indicative of anything because I don't have the expertise to tell what it means. But if experts at a governmental heritage organization determine that the discolouration is the result of a particular historical feature and designates it as a nationally important archaeological site then I might map it as such (that designation would put it under legal protection and it would be a criminal act to dig it up). -- Paul
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