[Tagging] Rivers intermittently navigable

[Graeme Fitzpatrick]

On Mon, 18 Feb 2019 at 20:44, Fernando Trebien <fernando.trebien at gmail.com>
wrote:

> I think my problem in particular is determining when it is navigable
> or not. It's like the difference between seasonal=* (predictable) and
> intermittent=* (unpredictable), my case is the intermittent one.
>
> The local authority does not publish depth information about the
> rivers, but publishes vessel draft. Historic depth data from river
> monitoring stations show that some are navigable most of the time, but
> can become shallow any month of the year, depending on the amount of
> rainfall. Over the last 10 years, records of one river reveal depths
> varying from ~0.5m to ~10m, and both minimum and maximum are reached
> every month (but the pattern changes year-to-year due to irregular
> rain).
>

With a range like that, that changes so frequently, I think you're stuck
with =intermittent, maybe with a description= to say that water depth is
constantly varying between 0.5 & 10m? !

Thanks

Graeme
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