On 20/05/18 18:33, Mateusz Konieczny wrote:
19. May 2018 04:33 by 61sundow...@gmail.com <mailto:61sundow...@gmail.com>:
    The intermittent tag continues to be confused with seasonal.

    Possibly this is because some want to use it to indicate that a
    follow is both seasonal and intermittent?


At least in my case it was like this:


- I discovered intermittent tag

- later I encountered someone claiming that seasonal water flow

  should be tagged with seasonal tag

- I checked intermittent definition in some sources and found no

  confirmation that "intermittent" excludes cyclic changes

Oxford Dictionary definition of Intermittent:
"Occurring at irregular intervals; not continuous or steady."

The word 'irregular"?
"Occurring at uneven or varying rates or intervals."

I would think that excludes 'regular' ... and I would take 'cyclic' to be 'regular'?
- I continue to use intermittent for anything waterway-related
  that has no constant presence of water but maybe I also started using
  seasonal=yes for some clearly seasonal features
BTW, what in your opinion should be used for spring that is

- active during snow melt
- active after heavy rains
- active continuously if within previous months/years weather was wet

?
For the snow melt I might tag seasonal=spring

For the heavy rains intermittent=yes

This would need to be interpreted as a logical 'or' between the two tags, rather than a logical 'and'.
The present tagging does not make this clear as there is no way to tag a 
logical 'and' as distinct from a logical 'or'.
This is another problem that exists with the present tagging of both 
seasonal and intermittent on the one feature.

Note also that successful redefining of popular tags is likely to fail.
Changing Wiki description is not magically changing what was tagged.
The definition on the OSM wiki of intermittent is not clear! Clarifying 
the meaning is one of my objectives.
If 'intermittent' is to include 'seasonal' then as you say there will 
need to be a new tag for non-cyclic flows.
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