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

[Mateusz Konieczny]

New keys are much, much better than new values for tags well established as
having boolean values.

intermittent=yes/no values are easy to interpret and sufficient for many uses

As someone involved a bit in using OSM data I am not against mapping extra detail
but I am against forcing everybody to start supporting new values in a well designed simple tag.

intermittent=ephemeral_dry_season is similar to 
tagging lane count with highway=motorway_with_5_lanes

Dec 13, 2018, 1:52 AM by smz at smz.it:

>
> Hello Warin,
>
>
> I think that extending the defined values for intermittent=*      could yield the same result and convey the very same information > without        adding a new tag>  (> don't we have enough?> )
>
>
> Assuming (> and this is just an assumption at this time...> )      that we are able to define a correct and agreed cutoff value for      the frequency of an event for it to be defined > ephemeral > vs. > intermittent> , then we could simply add the following keys      for intermittent=*:
>
> ephemeral_spring
> ephemeral_summer
> ephemeral_autumn
> ephemeral_winter
> ephemeral_dry_season
> ephemeral_wet_season
>
> ... and be happy with that! :-)
>
>
> Cheers,
>
>
> Sergio
>
>
>
>
> On 2018-12-13 00:14, Warin wrote:
>
>> Hi 
>>  
>>  I have reworked the ephemeral proposal. 
>>  
>>  This now demonstrates; 
>>  
>>  the difference between intermittent and seasonal - some want to      combine them into one and see the ephemeral key as just another      intermittent/seasonal thing so they vote no. 
>>  
>>  that ephemeral applies to more that just streams - some want it as      a sub key to streams .. that is not possible if it applies to      other things, these people too vote no. 
>>  
>>  
>>  It now draws on the seasonal page to demonstrate the use of the      seasonal values. 
>>  
>>  
>>  I see this key being used by the experienced local who can draw on      local knowledge. 
>>  
>>  The arm chair satellite mapper will have to stick with      intermittent as they will not be able to determine if seasonal nor      ephemeral apply, they may not even be able to determine      intermittent. 
>>  
>>  
>>  I hope this proposal page is now somewhat clearer? 
>>  
>>  
>>  >> https://wiki.openstreetmap.org/wiki/Proposed_features/ephemeral <https://wiki.openstreetmap.org/wiki/Proposed_features/ephemeral>>>  
>>  
>>  
>>  --------------------------- 
>>  
>>  I may do a dairy entry on seasonal, intermittent and ephemeral.      Looks to me like a lot of confusion probably promoted by the use      of intermittent everywhere. 
>>  
>>  
>>  _______________________________________________ 
>>  Tagging mailing list 
>>  >> Tagging at openstreetmap.org <mailto:Tagging at openstreetmap.org>>>  
>>  >> https://lists.openstreetmap.org/listinfo/tagging <https://lists.openstreetmap.org/listinfo/tagging>>>  
>>

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