Talk:Acre-foot

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[edit] Precision

When specifying any quantity via numbers for the purpose of explaining the idea to humans, it is rarely necessary or even helpful to use numbers of more than three or sometimes four decimal places in order to fasten upon the needed degree of precision. Thus, from this artcle,

"Definition

"It is defined by the volume of water necessary to cover one acre of surface area to a depth of one foot. It is equal to exactly 43,560 cubic feet, or 325,853.382 U.S. gallons, or 1233.489238 cubic meters".

For general description purposes, these could also be written as 43.6K cubic feet, 326K gal, 123.5K cubic meters, respectively.

The heading is "Definition" so what makes you think its a "general description"? Roger 11:24, 25 August 2007 (UTC)

[edit] Application

"So Acre feet is specifically used to define a yearly usage of water. It is not a appropriate unit to define a monthly consumption?" —Preceding unsigned comment added by 206.55.149.108 (talk) 22:22, 24 January 2008 (UTC)

Not necessarily. It is a unit of volume. I suppose baking recipes could measure flour and milk in acre-feet, but that's obviously silly. Acre-feet per year is among the most common units for water consumption. I don't recall seeing it used in any other context. —EncMstr 23:02, 24 January 2008 (UTC)