I have heard of rivers that are mostly underground during certain times. I'm not sure if this would apply here but it might be worthwhile asking. -- Regards, Sebastian
On 24 June 2019 9:34:30 pm AEST, Michael James <mich...@techdrive.com.au> wrote: >There are lots of rivers in Australia that do not always have water in >them > >The correct tag is intermittent=yes > >https://wiki.openstreetmap.org/wiki/Key:intermittent > >Thanks Michael > > >> -----Original Message----- >> From: Warin <61sundow...@gmail.com> >> Sent: Monday, 24 June 2019 8:58 PM >> To: talk-au@openstreetmap.org >> Subject: Re: [talk-au] Proposed deletion of part of the Gwydir River >> >> On 24/06/19 18:19, cleary wrote: >> > In the past, I added some parts of the Gwydir River to the map >using the NSW >> LPI Base Map because I could not see a clear waterway on satellite >imagery. >> Since then, I have visited the area twice and cannot actually find a >river where it >> is shown on the map. Much of the "river" is in private property but >public roads >> cross waterways at various locations. >> > >> > The western end of the Gwydir River seems not to exist except on >the NSW LPI >> Base Map and maps which have used it as a source (including OSM). >> > >> > As far as I can ascertain, the river used to dissipate into >wetlands and, if there >> was enough water, the seepage from the wetlands re-formed into >waterways. >> However intensive irrigation has resulted in such low water flow that >the >> wetlands are largely dust and water seems never to flow beyond them >(except >> perhaps in major flood events which are relatively rare). Water from >the eastern >> Gwydir may flow west to the Barwon River via Carole Creek into Gil >Gil Creek, >> via the Gingham Watercourse and via the Mehi River. But the >so-called Gwydir >> River, west of the wetlands, does not appear to exist except on the >LPI Map. >> And part that of the waterway that does exist is signposted by the >Moree Plains >> Shire Council with a different name (Big Leather Watercourse) at the >two places >> where it crosses public roads. GNB uses this name for another branch >of the >> river nearer to Moree but locals, including the local council, seem >to have a >> different view. >> > >> > When visiting the area, I found water to be difficult to discuss >with locals as >> there are some strong points of view. Maintaining a river on the map >may be a >> political imperative for government but is not consistent with OSM's >philosophy >> of mapping what is actually on the ground at particular locations. >> > >> > After reflection, I think the Gwydir River does not really exist >west of the >> wetlands and I think it should be deleted from OSM, even though it is >shown on >> the LPI Base Map. I propose to delete this section of the river and >follow the >> local council signposted name for the more westerly waterway that >does >> actually exist at Morialta and Watercourse Roads. >> > >> > I would appreciate any views on this issue. >> >> If deleted someone will put it back. >> >> How about using the 'life cycle' tags? >> >> disused? abandoned? raised? Disused might be a good fit.. thought >with climate >> change? abandoned:waterway=river?? >> >> >> >> >> >> _______________________________________________ >> Talk-au mailing list >> Talk-au@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-au >_______________________________________________ >Talk-au mailing list >Talk-au@openstreetmap.org >https://lists.openstreetmap.org/listinfo/talk-au
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