3 ms·
> acre-feet That’s an incredibly strange unit.
by chrisseaton 4y ago
> acre-feet
That’s an incredibly strange unit.
- rrss 4y agoIt is very common for water projects. I think it comes from reservoirs, since the area is measured in acres and the depth in feet.
- kragen 4y agothis particular medieval unit comes from irrigation maybe a rice crop requires three feet of water from planting to harvest, and you normally only get three inches of rain during that time, so you need 2.75 acre-feet of irrigation water per acre of rice
- LegitShady 4y agototally normal while discussing hydrology in the usa
- kragen 4y agoit's the volumetric cousin of furlongs per fortnight, a popular unit of velocity
- LegitShady 4y agohydrology is a lot of magic and statistics the units don't need to make sense
- njarboe 4y agoThe "miner's inch" is another cool unit. Used to describe a flow rate of water[1]. [1]https://en.wikipedia.org/wiki/Miner%27s_inch https://en.wikipedia.org/wiki/Miner%27s_inch