[HOT] Ocean in Latin America

[Jorieke Vyncke]

So this zone is actually some kind of island? Cool :)
I'm happy for you or someone else to have a look at it to get it fixed
Philippe!

Jorieke

Op do 19 mrt. 2020 om 17:38 schreef Manfred A. Reiter <ma.reiter at gmail.com>:

> Hi did not checked it,
>
> but a connection between Orinoco and Amazonas exists! It's the
> Cassiquiare. (Not sure about the correct wording)
>
> ## Manfred Reiter - mobile -
> ## please excuse typos and brevity
> ## http://weeklyOSM.eu
>
> Philippe Verdy <verdyp at gmail.com> schrieb am Do., 19. März 2020, 12:28:
>
>> There's certainly a problem in the way the multipolygon for the
>> Orinoco river was created, without importing the water tags to it.
>> And there's a suspiscious connection between Orinono and the Amazon
>> via a tributary, creating an "island" in it. This multipolygon
>> requires fixes (Osmose and other QA tools can help detect where this
>> happens).
>> I suspect that the multipolygon for the Orinoco River was modifioed
>> recently to add too many riverbeds in it and not really belonging to
>> it. This multipolygon is certainly broken.
>> I joined the OSM French talk list. There may be QA tools to do that
>> (it's not easy to fix as this covers a very large area, only JOSM
>> experts can locate it, with the help of QA tools to locate the broken
>> areas and superfluous tags. This will require loading lot of data, and
>> JOSM running in a 64-bit Java VM with enough memory, plus a solid PC.
>>
>> Le jeu. 19 mars 2020 à 18:20, Jorieke Vyncke
>> <jorieke.vyncke at gmail.com> a écrit :
>> >
>> >   Interesting!
>> > So is this an issue that can be fixed by the Humanitarian layer OSM
>> France team? Or is it just a matter of updating OSM and waiting for the
>> humaniarian layer to render it correctly?
>> > Thanks, Jorieke
>> >
>> > Op do 19 mrt. 2020 om 16:47 schreef Philippe Verdy <verdyp at gmail.com>:
>> >>
>> >> Most probably this is the "water bassin" of the Amazone river, which
>> >> was tagged incorrectly with some "water=*" that causes problems in
>> >> this rendering.
>> >> Water bassins for rivers (which do not include only riverbeds and
>> >> lakes/ponds, but also all surrounding lands whose drained waters on
>> >> soil are converging to rivers) should not use this tag.
>> >> This does not cause a problem however in the OSM Carto rendering. If
>> >> that tag was approved, then the rendering for humanitarian map should
>> >> be fixed (it is maintained by OSM France).
>> >> But if I look at the boundary, I only sea ways for small riverbeds.
>> >> So it is likely that some multipolygon for riverbeds areas of some
>> >> river has been broken and the renderers attempt to "close" it due to
>> >> holes, or that someone joined all these riverbeds into a single
>> >> multipolygon.
>> >> Given the size of the relation where it is used, this cannot be fixed
>> in iD.
>> >> Note also that given the current delays in the OSM data servers for
>> >> data replication, this may be temporary and caused by lack of
>> >> synchronization of the slave database used by the French renderer for
>> >> HOT.
>> >>
>> >> Le jeu. 19 mars 2020 à 17:11, Jorieke Vyncke
>> >> <jorieke.vyncke at gmail.com> a écrit :
>> >> >
>> >> > Hello,
>> >> > Is there someone who knows why several countries in Latin America
>> look like ocean on the humanitarian layer on OpenStreetMap? Check here:
>> https://www.openstreetmap.org/#map=5/3.119/-61.436&layers=H
>> >> > Can someone fix that?
>> >> > Thanks!
>> >> > Jorieke
>> >> >
>> >> >
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