[Tagging] Seasonal, intermittent, and ephemeral water tags

[Selfish Seahorse]

On 26 May 2018 at 15:27, Tod Fitch <tod at fitchdesign.com> wrote:
> ... So something like
>
> waterway=* (or natural=spring | water )
> presence=perennial | seasonal | intermittent | ephemeral
>
> If the presence is seasonal, then the existing seasonal=* could be used to
> describe what times of year the item is normally present.

This seems to be a good idea, as unclear or contradictory tag
combinations (like seasonal=yes + intermittent=yes) would not be
possible.