[Tagging] Coastal beach definition for mapping.

Graeme Fitzpatrick graemefitz1 at gmail.com
Mon Apr 2 21:40:19 UTC 2018


On 3 April 2018 at 05:27, Martin Koppenhoefer <dieterdreist at gmail.com>
wrote:

>
>
> 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.
>

Moving way from high & low tides for a moment to the actual "coastline"
itself.

When you have rivers opening into the sea, where does the "coastline" go?

Should it continue more or less straight, following the line of the beach,
across the mouth of the estuary; or should it follow the estuary / river
bank for an undetermined distance inland?

Just one of any number near us
https://www.openstreetmap.org/edit#map=16/-28.1294/153.4824, the coastline
follows the estuary then river bank for ~5 km's inland (including around 2
canal estates!), then crosses the creek (which at that spot is <10 m's
wide) & returns to the beach.

Wouldn't it make for sense for the coastline to cross from Currumbin Rock
to the tip of the groyne, with the rest of the line being river bank?

Thanks

Graeme
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