[Tagging] Rio de la Plata edit war

muralito at montevideo.com.uy muralito at montevideo.com.uy
Mon Aug 3 19:57:35 UTC 2020


> De: "Kevin Kenny" <kevin.b.kenny at gmail.com>
> Para: "Tag discussion, strategy and related tools" <tagging at openstreetmap.org>
> Enviados: Domingo, 2 de Agosto 2020 11:03:09
> Asunto: Re: [Tagging] Rio de la Plata edit war

> On Sat, Aug 1, 2020 at 6:42 PM Paul Norman via Tagging <
> tagging at openstreetmap.org > wrote:

>> Starting locally, the Fraser River has a strong tidal influence 25km
>> upstream of the coastline/riverbank edge. Fishers report a tidal
>> influence 90km upstream. Wikipedia says the Columbia has tidal influence
>> up to the first dam, which is 120km upstream of the coastline/riverbank
>> edge. There are tidal forecasts published for 75km upstream of the edge.

>> Looking in Europe, the Thames is tidal for 80km upstream of the
>> coastline/riverbank edge.

> Near to me, the Hudson River is an even more extreme example of what you're
> talking about. It is tidal for 134 nautical miles (248 km) north of Mile Zero
> (which is the tip of the Battery, where it enters New York Harbor). The salt
> front ranges from some distance out in New York Harbor during the spring
> snowmelt to about Poughkeepsie (124 km upriver) in a dry summer. Because of
> resonance effects, the tidal range is actually greatest right at the Federal
> Dam in Troy, the northernmost extent of the estuarine region. If you say that
> Troy is on the coast, people will look at you as if you have two heads. If you
> start to explain that well, the river is tidal, and dredged to a depth of 9m to
> accommodate oceangoing vessels, and (yada, yada, yada), they'll say, 'yeah, I
> suppose if you want to be THAT way about it,' and file you mentally under
> 'insufferable pedant.'

> Much farther afield, the Amazon is tidal at least as far as Óbidos, Brasil,
> nearly a thousand km from the river's mouth.

> As a practical matter, given the woes of coastline maintenance, pushing the
> coastline for tens or hundreds of km up most of the world's rivers would be a
> disaster.

We should'nt push up the coastline. i think that tagging coastline inland rivers is wrong, no matter the tides. but it depends on what we are using "coastline" for. 

And the Amazon mouth should be fixed, but the brazilian is a very active community and could do what it should be done by themselves. 

Regards, 
M. 







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