[Tagging] units and notations for depth

[Graeme Fitzpatrick]

On Tue, 19 Feb 2019 at 12:45, Warin <61sundowner at gmail.com> wrote:

> The wiki has no units for depth, I would suggest these be the same as
> height.
>

Makes sense - default as m's, but can be marked as ft depending on local
standards


> There are also problems with estimation and variability.
>
> Some are using the tilde mark '~' to indicate 'approximately'.
>
> Some are using '-' for between eg depth=0.5-0.7 for between 0.5 and 0.7.
>
> Any opposition or better ideas???
>

Not opposition, but for tidal areas, isn't this going to have the same
problems of whether you mark the "coastline" at the high- or low-tide line?

You'd probably need something along the lines of
Average_low-tide=0.8
Average_high-tide=1.9

Thanks

Graeme
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