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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Reverted undiscussed automated edits by a badly functioning and likely unauthorised source by a sockpuppet account

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Hi Alexey_ND,

Please don't perform edits just to satisfy some validator without understanding what the warning is for. Warnings are just tools that *can* be used to reveal data issues. Just because there is a warning, doesn't mean there are any issues. Long ways on their own are not an issue that needs to be systematically fixed.

Furthermore, any such edits should first meet the Automated Edits Guidelines requirement osm.wiki/Automated_Edits_code_of_conduct

Best regards,
Taya Snijder,
On behalf of the OSMF Data Working Group

Hi,

Thanks for getting back to me.

No, I'm not asking you to stop editing. I'm just asking you to take a few steps to improve the way you're currently mapping coastlines here.

You're right that this coastline is still very rough. It mostly consists of very old imported coastline data. This coastline getting improved would be nice to see. But right now, you're just changing one badly drawn coastline for another. Luckily, with just a few simple steps it should be possible to greatly improve the way you're drawing coastlines compared to now.

Like I said, in OSM we map the coastline at the high water mark. This area you are editing in has relatively difficult coastlines due to its large intertidal zones. The coastline will almost always be at at least the point where mangroves or other vegetation starts to grow. This is a good guideline to keep in mind.

There are also various tools out there we can use to help with coastline mapping. Like I said previously, using different sets of imagery can be very useful. So not relying on just Bing for example, but also using Esri and Mapbox. Esri also has a tool to view old imagery https://livingatlas.arcgis.com/wayback/#active=15212&mapCenter=123.85423%2C-16.31829%2C14&mode=explore

Another very powerful dataset we have permission to use is DEA Intertidal. This map uses Landsat and Sentinel data to show the extend of the intertidal zone. https://maps.dea.ga.gov.au/#share=s-cxL0zKsRfCuFvNy1Q8ykgaiYsaX (WMS Links: wms:https://ows.dea.ga.gov.au/wms?FORMAT=image/png&TRANSPARENT=TRUE&VERSION=1.3.0&SERVICE=WMS&REQUEST=GetMap&LAYERS=ga_s2ls_intertidal_cyear_3&STYLES=intertidal_exposure&CRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}
(Note there is also DEA coastlines, but that dataset doesn't function all that well in areas with large intertidal zones)

I've used these tools extensively in areas such as osm.org/#map=14/-20.74760/117.41595 and osm.org/#map=13/-16.96706/123.84761

If you've got any questions, please let me know.

Best regards,
Taya Snijder

Hello 5r22,

you are still mapping the coastline at wherever it happens to be at the time the imagery was taken instead of where the high water line is. Please respond to comments you receive.

Best regards,
Taya Snijder