[Tagging] Coastal beach definition for mapping.

[Warin]

On 03/04/18 05:27, Martin Koppenhoefer wrote:
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> sent from a phone
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>> On 2. Apr 2018, at 06:13, Warin <61sundowner at gmail.com> wrote:
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>> Comments? Any that support the high water mark limit I'd be interested in seeing.
>
> I find it generally difficult to estimate high and low water positions, when I’m adding beaches at the sea I will usually use the coastline as border towards the water and the put the rear border where it looks like the end of the beach. On rivers and lakes I would also use the water boundary as border for the beach.
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Where is it difficult? An example would help?

As a counter example;

Here is Bondi Beach, Australia. https://www.openstreetmap.org/edit#map=17/-33.89168/151.27720

If you use the LPI Imagery you can clearly see the sand under the water edge.

If you use the Bing, Digital Globe, ERSI, Mapbox, AGRI imagery you can see towards the low water mark.