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<div class="moz-cite-prefix">On 15/08/19 16:50, Leif Rasmussen
wrote:<br>
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cite="mid:CADcEzcan-C+netyv8ytEnob45oi6uN=fS8_tGs5RipPjRRFfjA@mail.gmail.com">
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<div dir="auto"><b>Was Re: [Tagging] Definition of a Beach</b></div>
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<div dir="auto"><i><br>
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> that then clashes with OSM Coastline, which is taken as
the High Tide mark</i>
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<div dir="auto">I was under the impression that the definition
of the coastline was the average between high and low, not the
high tide mark, based on what I had read on some wiki page. I
think that there must be conflicting guidelines on the wiki
since I've noticed two conflicting mapping styles. </div>
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<div dir="auto">What style do people think is better? Is there
an advantage to one over the other? <br>
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For a mapper gathering data it is much easier to estimate the high
tide mark - either from being there at hi tide or estimating it from
wave patterns and float-sum left behind. For low tide you'd have to
get your timing right. <br>
If you want the middle then you need both hi and low - at least
twice the work. So for making the map data gathers job easiest -
high tide only please. <br>
<blockquote type="cite"
cite="mid:CADcEzcan-C+netyv8ytEnob45oi6uN=fS8_tGs5RipPjRRFfjA@mail.gmail.com">
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<div dir="auto"><br>
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<div dir="auto">Also, is there a good way to map the coastline
as an area representing the low tide to high tide difference?
Adding some tag like tidal=yes to areas representing that
shape is the best I've found, but tidal=yes can also be used
to mark that some water or marsh is tidal.</div>
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Sorry but I don't map low tide ... too many other things to map!
Good luck if you want to do that. <br>
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