<div dir="ltr">The DCS Spatial Services waiver we obtained at <a href="https://wiki.openstreetmap.org/w/index.php?title=File%3ASpatialServices_NSW_OSM_Waiver_completed.pdf&page=2">https://wiki.openstreetmap.org/w/index.php?title=File%3ASpatialServices_NSW_OSM_Waiver_completed.pdf&page=2</a> specified "Spatial Web Services" which at the time covered<p style="box-sizing:inherit;margin:0px 0px 10px 20px;padding:0px;line-height:18px;color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:12px"></p><ol><li>NSW Imagery</li><li>NSW Base Map</li><li>NSW Points of Interest</li><li>NSW Administrative Boundaries</li><li>NSW Imagery Date</li><li>NSW Address Location Service</li><li>NSW Cadastre</li><li>NSW Property</li><li>NSW Topographic Map</li><li>NSW Survey Control Management System (SCIMS)</li></ol><p></p><p style="box-sizing:inherit;margin:0px 0px 10px 20px;padding:0px;line-height:18px;color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:12px">See the achived page at <a href="https://web.archive.org/web/20201031195357/https://www.spatial.nsw.gov.au/products_and_services/web_services">https://web.archive.org/web/20201031195357/https://www.spatial.nsw.gov.au/products_and_services/web_services</a></p><p style="box-sizing:inherit;margin:0px 0px 10px 20px;padding:0px;line-height:18px;color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:12px">However now that page lists more datasets as "Web Services" <a href="https://www.spatial.nsw.gov.au/products_and_services/web_services">https://www.spatial.nsw.gov.au/products_and_services/web_services</a> which now does include <a href="https://portal.spatial.nsw.gov.au/portal/home/item.html?id=85ca688f5e9c43e28363dda4bbf23d42">https://portal.spatial.nsw.gov.au/portal/home/item.html?id=85ca688f5e9c43e28363dda4bbf23d42</a> which is the NSW Elevation and Depth Theme data from ELVIS.</p><p style="box-sizing:inherit;margin:0px 0px 10px 20px;padding:0px;line-height:18px;color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:12px">Based on this I'm comfortable that we can use this data under the existing waiver we have.</p><p style="box-sizing:inherit;margin:0px 0px 10px 20px;padding:0px;line-height:18px;color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:12px">What I'd suggest is to document your process for deriving the stream geometry from the ELVIS data and what you're proposing to import and how. eg. how do you determine how far upstream to map, how do you determine if what's in OSM is better already than ELVIS or if ELVIS is better.</p></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, 10 Jan 2025 at 17:10, Tom Brennan <<a href="mailto:website@ozultimate.com">website@ozultimate.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Is it permissible to use DEM data from ELVIS to generate a stream layer than can then be used to improve the existing streams in OSM?<br>
<br>
In NSW, most of the streams have been either copied from the DCS base or topo map, or (less common) traced from DCS aerial imagery. The accuracy of the original DCS base/topo data (not the tracing!) in some places is fairly woeful. The aerial imagery is better, but suffers from canopy cover.<br>
<br>
The DEM data is licensed under CC 3.0.<br>
<br>
cheers<br>
Tom<br>
----<br>
Canyoning? try <a href="http://ozultimate.com/canyoning" rel="noreferrer" target="_blank">http://ozultimate.com/canyoning</a><br>
Bushwalking? try <a href="http://bushwalkingnsw.com" rel="noreferrer" target="_blank">http://bushwalkingnsw.com</a><br>
<br>
<br>
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</blockquote></div>