On Wed, Apr 29, 2015 at 6:23 AM, Erik Johansson <[email protected]> wrote:

> So are the tree trunks growing
> right at the  coastline, or is there a 1m-5m zone where there are no
> tree trunks and you are really mapping "landcover=tree_canopy? So I've
> never really figured it out  exactly what it means when the coastline
> and the treeline shares the same way.


In the case of a mangrove forest, it means exactly what it seems like:
there is
no other land type between forest and water.

In other cases it's a handy approximation, close enough for mapping
purposes.
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