[Tagging] Deprecate water=pond?

Brian M. Sperlongano zelonewolf at gmail.com
Wed Nov 11 14:59:33 UTC 2020

If the consensus is to go with a limnological definition - I think that's
fine.  Let's lay out the limnological description of "pond" and "lake" and
let mappers sort out edge cases based on their best interpretation of the
definitions provided.  That's no different than the wetland= tag in which
there are lots of edge cases in the real world that are not quite one or
the other.  I assume there will be cases where "such and such pond" is
properly tagged water=lake and vice versa, but that's fine if there's a
definition to stand on.

If we are going with a "what people call it" definition, then the
distinction is purely redundant and worse may not translate appropriately
into other languages which might have a different array of terms for such
bodies of water.

On Wed, Nov 11, 2020 at 8:30 AM Paul Allen <pla16021 at gmail.com> wrote:

> On Wed, 11 Nov 2020 at 13:12, Brian M. Sperlongano <zelonewolf at gmail.com>
> wrote:
>> Is it actually desirable to distinguish a "lake" from a "pond"?  If so,
>> what is the difference?  Is it just that a body of water is named "XYZ
>> Pond" versus "XYZ Lake"?  If so, isn't water=pond versus water=lake derived
>> from and redundant with name?
> It's possible to make the distinction.  It's not clear-cut.  There are
> several
> definitions which are not entirely compatible with each other, but they
> have more similarities than differences.  Edge cases are hard.
> See, for example:
> https://lakes.grace.edu/ponds-vs-lakes-whats-the-difference/
> https://www.lakemat.com/whats-the-difference-between-a-lake-and-a-pond/
> https://www.des.nh.gov/organization/commissioner/pip/factsheets/bb/documents/bb-49.pdf
> https://www.lakescientist.com/lake-facts/how-lakes-differ/
> Most of them agree that lakes have aphotic zones (deep areas that receive
> no sunlight, preventing plants from growing there).  But wave height,
> uniformity
> of temperature, and area of water may play a part.  And, of course,
> there's what
> the locals call it.
>> Is there a conceivable scenario where a data consumer or renderer would
>> care about the distinction between these two tags?
> Renderers will probably treat them identically  A limnologist would find
> the
> distinction useful.
> There is also a distinction between pools and ponds.  However, since pools
> are supplied by a spring or a stream, most can be distinguished by other
> water=* occurring in conjunction with them (a lot of the ponds I've mapped
> are actually pools).
> https://www.askdifference.com/pool-vs-pond/
> --
> Paul
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