Thread: Weirs
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Old 06-28-2014, 05:16 PM
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Quote:
Originally Posted by Paulox86 View Post
If the marsh behind the weirs gets is salinity from BL, then how could the marsh get more salty than the body of water supplying salt? Both areas experience evaporation at equal rates. If BL is supplied with more fresh water than the marsh, then maybe. But the gulf is also pumping salt into BL during incoming tides that the marsh does not get.

Anyone else willing to offer a theory?
Quote:
Originally Posted by Gerald View Post
EVAPORATION ......

The marsh is like an enclosed lake, with just a very little in/out flow.

When the water keeps evaporating every day, the salt is left behind and the salinity keeps getting higher.

The water level in the Cameron Prairie [East Cove unit] has been about a foot lower that the average lake level for months now.
Quote:
Originally Posted by redaddiction View Post
Simple high school physics explains it. Because the lake has more volume than the marsh. Equal evaporation but different ratios of water to salt.

Go mix a 5 gallon bucket with salty water. Pour some in a quart container. When the quart is evaporated down by lets say half, it's going to be saltier than the larger container. And the larger container will not have evaporated in half during the same amount of time.

Do you understand now ???
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