[Tagging] Feature Proposal - RFC - Ephemeral a water property key.

Warin 61sundowner at gmail.com
Fri Dec 14 00:55:18 UTC 2018

Thoughts ... (take on  Hobbit like theme - one key to rule them all...)

As both intermittent and seasonal are all render the same .. why not 
combine them into one key as well?


I note that intermittent is taken by many as 'I know it is 
non-perennial' so it may be appropriate to have a non_perennial=yes for 
the more common mapping value.

Well? Is that a reasonable idea?

It could be implemented as a mechanical edit on
seasonal 1:1.
On intermittent=yes ... as non_perennial=yes with a request to determine 
a more specific value?
On intermittent=/season/ ... as non_perennial=intermittent_/season

/These could coexist with the present tags while people changed over.

On 14/12/18 10:58, Sergio Manzi wrote:
> You can do *exactly the same* with my new proposed values for 
> intermittent=*
> No need for a new key, I think.
> Cheers,
> Sergio
> On 2018-12-14 00:48, Warin wrote:
>> On 13/12/18 12:48, Sergio Manzi wrote:
>>> On 2018-12-13 02:36, Warin wrote:
>>>> At the moment developing a system to render seasonal values on 
>>>> requires a  determination on spring/summer/autumn/winter etc .. 
>>>> this would add some new terms. Not too hard but does add to things. 
>>> Also developing a system to render the ephemeral key would add some 
>>> complexity, probably more...
>>>> Not certain about ephemeral being subservient to intermittent.
>>> If it is not there all of the time, than it is intermittent.
>>> If it doesn't last long, than it is ephemeral (/but then it is not 
>>> there all of the time and thus it is intermittent too/).
>> The primary motivation for me is that a water feature with 
>> intermittent is more likely to have water, even it I have to dig a 
>> meter or two for it, than a water feature with ephemeral.
>> I don't expect a 'normal' map will tell me this. But a desert map 
>> should.
>> I would map the ephemeral river banks/courses.
>> But then the places where water pools to form more permanent water 
>> sources I would as natural=water, intermittent=yes. In this way they 
>> can be distinguished as a more probable source of water.
>> Some satellite imagery shows these .. but then some shows the area 
>> just after rain! So it requires some judgements.
>> I'll add this as a rationale ...
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