On Tue, Mar 05, 2013 at 09:57:31AM -0500, Serge Wroclawski wrote: > I worked on an Ozone monitoring instrument briefly in my career, and > my understanding is that the polar ice caps change often.
No, they don't change all that much. Of course they change a little bit all the time, the ice cap moves about 10m a year at the South Pole for instance, and sometimes large icebergs break off from the shelf-ice, but for the resolution we are talking about here, the resolution interesting for OSM, they are basically static. > Are you proposing that we change them every N months? No. > If so, I think we have better solutions at our disposal than trying to > delete/reimport huge areas like this. This is a misunderstanding. The reason the old data is bad is not that Antarctica changed so much between then and now. I don't know why the old data is so bad, maybe it is because satellite images etc. have improved since then so better data could be derived. Jochen -- Jochen Topf [email protected] http://www.remote.org/jochen/ +49-721-388298 _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
