[OSM-talk] Beaches at lower zoom levels

Malcolm Herring malcolm.herring at btinternet.com
Thu Aug 19 08:27:35 BST 2010


Alan Mintz wrote:
> 
> Are coastlines supposed to be on the low-tide position, high-tide 
> position, or middle of the beach? I've been gluing the low-tide side of 
> beaches to coastline on the few I've edited, since their position 
> suggested that was the intent.
> 

The usual convention (Ordnance Survey for example) for land maps is to 
use "Mean High Water". (Marine charts usually use "Mean High Water 
Springs" as their dry land datum.)




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