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Acre Foot

An acre-foot is a unit of volume commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, and river flows. It is defined by the volume of one acre of surface area to a depth of one foot. Since the acre is defined as a chain by a furlong ($66 ft \times 660 ft$) the acre-foot is exactly $43,560 cubic feet$. For irrigation water, the volume of $1 ft \times 1 \; ac = 43,560 \; ft^{3} (1,233.482 \; m^{3}, 325,851 \; US gal)$.

1233.4818375475202

1.2334818375475202E3

0112/2///62720#UAB288

http://en.wikipedia.org/wiki/Acre-foot

http://www.oxfordreference.com/view/10.1093/acref/9780198605225.001.0001/acref-9780198605225-e-35

https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/Units/0112-2---62720%23UAB288

acre·ft

[acr_br].[ft_i]