<html><head></head><body>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.<br>-- <br>Regards, Sebastian<br><br><div class="gmail_quote">On 24 June 2019 9:34:30 pm AEST, Michael James <michael@techdrive.com.au> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">There are lots of rivers in Australia that do not always have water in them<br><br>The correct tag is intermittent=yes<br><br><a href="https://wiki.openstreetmap.org/wiki/Key:intermittent">https://wiki.openstreetmap.org/wiki/Key:intermittent</a><br><br>Thanks Michael<br><br><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;">-----Original Message-----<br>From: Warin <61sundowner@gmail.com><br>Sent: Monday, 24 June 2019 8:58 PM<br>To: talk-au@openstreetmap.org<br>Subject: Re: [talk-au] Proposed deletion of part of the Gwydir River<br><br>On 24/06/19 18:19, cleary wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;">In the past, I added some parts of the Gwydir River to the map using the NSW<br></blockquote>LPI Base Map because I could not see a clear waterway on satellite imagery.<br>Since then, I have visited the area twice and cannot actually find a river where it<br>is shown on the map. Much of the "river" is in private property but public roads<br>cross waterways at various locations.<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><br> The western end of the Gwydir River seems not to exist except on the NSW LPI<br></blockquote>Base Map and maps which have used it as a source (including OSM).<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><br> As far as I can ascertain, the river used to dissipate into wetlands and, if there<br></blockquote>was enough water, the seepage from the wetlands re-formed into waterways.<br>However intensive irrigation has resulted in such low water flow that the<br>wetlands are largely dust and water seems never to flow beyond them (except<br>perhaps in major flood events which are relatively rare). Water from the eastern<br>Gwydir may flow west to the Barwon River via Carole Creek into Gil Gil Creek,<br>via the Gingham Watercourse and via the Mehi River. But the so-called Gwydir<br>River, west of the wetlands, does not appear to exist except on the LPI Map.<br>And part that of the waterway that does exist is signposted by the Moree Plains<br>Shire Council with a different name (Big Leather Watercourse) at the two places<br>where it crosses public roads. GNB uses this name for another branch of the<br>river nearer to Moree but locals, including the local council, seem to have a<br>different view.<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><br> When visiting the area, I found water to be difficult to discuss with locals as<br></blockquote>there are some strong points of view. Maintaining a river on the map may be a<br>political imperative for government but is not consistent with OSM's philosophy<br>of mapping what is actually on the ground at particular locations.<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><br> After reflection, I think the Gwydir River does not really exist west of the<br></blockquote>wetlands and I think it should be deleted from OSM, even though it is shown on<br>the LPI Base Map. I propose to delete this section of the river and follow the<br>local council signposted name for the more westerly waterway that does<br>actually exist at Morialta and Watercourse Roads.<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><br> I would appreciate any views on this issue.<br></blockquote><br>If deleted someone will put it back.<br><br>How about using the 'life cycle' tags?<br><br>disused? abandoned? raised? Disused might be a good fit.. thought with climate<br>change? abandoned:waterway=river??<hr>Talk-au mailing list<br>Talk-au@openstreetmap.org<br><a href="https://lists.openstreetmap.org/listinfo/talk-au">https://lists.openstreetmap.org/listinfo/talk-au</a><br></blockquote><hr>Talk-au mailing list<br>Talk-au@openstreetmap.org<br><a href="https://lists.openstreetmap.org/listinfo/talk-au">https://lists.openstreetmap.org/listinfo/talk-au</a><br></pre></blockquote></div></body></html>