<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><div class="" style="font-family: Helvetica-Light;"><div class=""><font face="Helvetica-Light" class="">Thanks for the feedback and suggestions everyone, that’s very helpful. We have also added AGRI to our list of sources.</font></div></div><div class="" style="font-family: Helvetica-Light;"><div class=""><br class=""></div></div><div class="" style="font-family: Helvetica-Light;"><div class="">Where the inland water meets the coastlines, we have seen a few different styles of modeling so I wanted to see if you had a local policy about it. </div></div><div class="" style="font-family: Helvetica-Light;"><div class=""><br class=""></div></div><div class="" style="font-family: Helvetica-Light;"><div class="">In some cases we’ve seen things like this, where the coastline goes very far upstream: <a href="https://www.openstreetmap.org/way/14763476#map=11/-12.4279/132.4683" class="">https://www.openstreetmap.org/way/14763476#map=11/-12.4279/132.4683</a> </div></div><div class="" style="font-family: Helvetica-Light;"><div class=""><br class=""></div></div><div class="" style="font-family: Helvetica-Light;"><div class="">In other cases, the coastline is farther downstream, like where the Pine River stops here: <a href="https://www.openstreetmap.org/way/159813122#map=14/-27.2842/153.0761" class="">https://www.openstreetmap.org/way/159813122#map=14/-27.2842/153.0761</a></div></div><div class="" style="font-family: Helvetica-Light;"><div class=""><br class=""></div></div><div class="" style="font-family: Helvetica-Light;"><div class="">We were thinking the second example is better. If that’s the case for the Alligator River we would put the coastline here (which is also where the GA Surface Hydrology polygon has the river starting) <a href="https://www.openstreetmap.org/?mlat=-12.2296501875&mlon=132.402678198#map=15/-12.2293/132.4083" class="">https://www.openstreetmap.org/?mlat=-12.2296501875&mlon=132.402678198#map=15/-12.2293/132.4083</a> and change the existing coastline to riverbank.</div></div><div class="" style="font-family: Helvetica-Light;"><br class=""></div><div class="" style="font-family: Helvetica-Light;">Please let me know what you think.</div><div class="" style="font-family: Helvetica-Light;"><div class=""><br class=""></div></div><div class="" style="font-family: Helvetica-Light;"><div class="">Thanks,</div></div><div class="" style="font-family: Helvetica-Light;"><div class=""><br class=""></div></div><div class="" style="font-family: Helvetica-Light;"><div class="">Andrew</div></div></div><div class="">
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<div><br class=""><blockquote type="cite" class=""><div class="">On May 16, 2018, at 9:26 AM, Andrew Harvey <<a href="mailto:andrew.harvey4@gmail.com" class="">andrew.harvey4@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Agreed with Warin and Ewen.<div class=""><br class=""></div><div class="">I'd like to point out the AGRI imagery [1], yes it's old (2006-2011), black and white, and missing parts of the imagery due to cloud and seams, but it may help as an extra source to compare. It's good enough to make out rivers and it should be accurate positionally since it was validated with ground surveys. CC BY 4.0 and usable in OSM from the blanket Geoscience Australia wavier[5].</div><div class=""><br class=""></div><div class="">GA also has a Surface Hydrology dataset [2] [3] [4] which could be used as well.</div><div class=""><br class=""></div><div class="">Some features are better tagged as a wetland <a href="https://wiki.openstreetmap.org/wiki/Tag:natural%3Dwetland" class="">https://wiki.openstreetmap.org/wiki/Tag:natural%3Dwetland</a>. Local knowledge is always prefered, but so long as features mapped from local knowledge are not impacted, something mapped from other sources is better than nothing, which can be improved further by local knowledge.</div><div class=""><br class=""></div><div class="">I'm interested to know more about the alignment issues when they meet the coast, is there a specific example of where this needs work at the moment in OSM?</div><div class=""><br class=""></div><div class="">PS. Microsoft's Open Maps team has similar tasks at <a href="https://github.com/Microsoft/Open-Maps/issues/14" class="">https://github.com/Microsoft/Open-Maps/issues/14</a> and <a href="https://github.com/Microsoft/Open-Maps/issues/11" class="">https://github.com/Microsoft/Open-Maps/issues/11</a></div><div class=""><br class=""></div><div class="">[1] <a href="https://github.com/osmlab/editor-layer-index/blob/gh-pages/sources/australia/au/AGRIblack-and-white25m.geojson?short_path=4ca9ae8" class="">https://github.com/osmlab/editor-layer-index/blob/gh-pages/sources/australia/au/AGRIblack-and-white25m.geojson?short_path=4ca9ae8</a></div><div class="">[2] <a href="https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search?node=srv#/metadata/1186e898-14b5-812e-e053-10a3070a76f0" class="">https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search?node=srv#/metadata/1186e898-14b5-812e-e053-10a3070a76f0</a></div><div class="">[3] <a href="https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search?node=srv#/metadata/12777e32-ec4f-055a-e053-10a3070a2ce2" class="">https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search?node=srv#/metadata/12777e32-ec4f-055a-e053-10a3070a2ce2</a></div><div class="">[4] <a href="https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search?node=srv#/metadata/123f4803-04d7-32d1-e053-12a3070a99ac" class="">https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search?node=srv#/metadata/123f4803-04d7-32d1-e053-12a3070a99ac</a></div><div class="">[5] <a href="https://wiki.openstreetmap.org/wiki/File:GeoscienceAustralia_CCBY_Waiver_EmailAcceptance.pdf" class="">https://wiki.openstreetmap.org/wiki/File:GeoscienceAustralia_CCBY_Waiver_EmailAcceptance.pdf</a></div></div>
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