Re: [Talk-at] Way: 357911189
Friedrich Thanks for your comments I changed waterway=riverbank to natural=scree The map already had 2 river channels indicating a braided stream I referenced our conversation in the changeset comments. Tony On 06.08.19 04:40, fors...@ozonline.com.au wrote: Way: 357911189 renders as a lake, in reality it is a scree slope/gravel bed with a braided stream running through it. It is tagged waterway riverbank. Do you have any suggestions for better tagging? This should be micro-mapped from aerial images. You need to compare images from different years to see which parts of the area are frequently changing, and which are not. natural=scree seems fine for most oft that area. The green parts are certainly natural=fell. waterway=riverbank is ok on the area around E 11.6636714 / N 47.0004158, which is covered most of the time by the varying branches of the stream. I have never been to that region, but in general the alpine waterways carry a lot more water in spring and early summer due to snowmelt. You don't see these water levels in aerial images because they are taken when the snow is gone. So it's possible that waterway=riverbank is correct on a bigger area, but then it should be accompanied by intermittent=yes. See https://wiki.openstreetmap.org/wiki/Proposed_features/ephemeral for ideas how to specify the season. The waterway=stream itself should be adapted to the latest aerial image. This may by outdated anyway, but it's still better than what is mapped by now. -- Friedrich K. Volkmann http://www.volki.at/ Adr.: Davidgasse 76-80/14/10, 1100 Wien, Austria ___ Talk-at mailing list Talk-at@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-at _ This mail has been virus scanned by Australia On Line see http://www.australiaonline.net.au/mailscanning ___ Talk-at mailing list Talk-at@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-at
Re: [Talk-at] Way: 357911189
On 06.08.19 04:40, fors...@ozonline.com.au wrote: Way: 357911189 renders as a lake, in reality it is a scree slope/gravel bed with a braided stream running through it. It is tagged waterway riverbank. Do you have any suggestions for better tagging? This should be micro-mapped from aerial images. You need to compare images from different years to see which parts of the area are frequently changing, and which are not. natural=scree seems fine for most oft that area. The green parts are certainly natural=fell. waterway=riverbank is ok on the area around E 11.6636714 / N 47.0004158, which is covered most of the time by the varying branches of the stream. I have never been to that region, but in general the alpine waterways carry a lot more water in spring and early summer due to snowmelt. You don't see these water levels in aerial images because they are taken when the snow is gone. So it's possible that waterway=riverbank is correct on a bigger area, but then it should be accompanied by intermittent=yes. See https://wiki.openstreetmap.org/wiki/Proposed_features/ephemeral for ideas how to specify the season. The waterway=stream itself should be adapted to the latest aerial image. This may by outdated anyway, but it's still better than what is mapped by now. -- Friedrich K. Volkmann http://www.volki.at/ Adr.: Davidgasse 76-80/14/10, 1100 Wien, Austria ___ Talk-at mailing list Talk-at@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-at
[Talk-at] Way: 357911189
Hi Excuse me for posting in English Way: 357911189 renders as a lake, in reality it is a scree slope/gravel bed with a braided stream running through it. It is tagged waterway riverbank. Do you have any suggestions for better tagging? Tony (Australia) ___ Talk-at mailing list Talk-at@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-at
