[Tagging] Seasonal, intermittent, and ephemeral water tags

Paul Allen pla16021 at gmail.com
Sat May 26 11:51:44 UTC 2018


On Sat, May 26, 2018 at 9:17 AM, Warin <61sundowner at gmail.com> wrote:

> On 26/05/18 17:18, Mateusz Konieczny wrote:
>
>
> So ... why have seasonal?
>
> Because it may be useful for data consumers (and sometimes routers) to
know,
for example, if water is present only during winter.   It helps in
planning.  As in
being unable to use a track in winter because it crosses a riverbed which
only
has water in it during winter.  Or planning a hike where you take account of
water sources to use in an emergency if there is a problem with your bottled
supply.

"Seasonal" isn't a guarantee of such things, of course, merely a guide to
probabilities, and it says that those probabilities are far higher at
certain
times of year than at others.  "Intermittent" is also a guide to
probabilities
but does not give a guide as to which times of year (or which years) are
more
likely than others, because such things cannot be determined, it says water
might be there or might not.  "Ephemeral" says that the might be water there
but it's unlikely and if it is there is probably won';t be there for long.

-- 
Paul
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