[Tagging] Lake or Pond

Graeme Fitzpatrick graemefitz1 at gmail.com
Fri Jul 20 23:23:10 UTC 2018

 On 21 July 2018 at 04:59, Michael Patrick <geodesy99 at gmail.com> wrote:

>    - Does light reach the bottom of the deepest point of the water body?
>    - Does the water body only get small waves (i.e., smaller than
>    1ft/30cm in height)?
>    - Is the water body relatively uniform in temperature?
> If these questions can be answered with a “yes,” the water body is likely
> a pond and not a lake.1
> Other national technical typologies do include a lower area requirement
> ranging from .5 hectares ( 'two NFL football fields' for USA residents ) to
> 2 hectares, and other various factors like inflow/outflow, relation to the
> water table, sediment suspension, etc.

On 21 July 2018 at 05:20, Dave Swarthout <daveswarthout at gmail.com> wrote:

> My criteria for deciding between lake and pond are therefore mostly based
> on size. Sometimes a lake-sized water body is obviously very shallow and so
> I tag it as a pond.

Being an awkward Aussie again :-)

Lake Eyre, https://en.wikipedia.org/wiki/Lake_Eyre, when full, has a
surface area of "9,500 km2 (3,668 sq mi)" but has only filled a handful of
times in the last ~150 years. Even when full, the maximum water depth in
the deepest spot is only 6 m's, with most being <3 m's, & the water is
virtually transparent, so that the lake bottom can still be seen from the

So this makes it only a pond? (& a intermittent one at that! :-))
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