Weirs

[Paulox86]

Originally Posted by "W"

The salt is higher in the marsh than the lake right now according to a good source

Explain how, with the weirs closed, the salinity gets higher in the marsh than in BL. I cannot figure that out. Not a smart as question, just asking how.


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[Smalls]

Originally Posted by Paulox86

Explain how, with the weirs closed, the salinity gets higher in the marsh than in BL. I cannot figure that out. Not a smart as question, just asking how.


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Curious how Waltrip will respond. Please, no one spoil this by giving the true answer.

["W"]

Originally Posted by Paulox86

Explain how, with the weirs closed, the salinity gets higher in the marsh than in BL. I cannot figure that out. Not a smart as question, just asking how.


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Because last time they opened the weirs for 3 days the water never came out of the marsh ,it just went in for 72 hrs straight .

The marsh was already high salinity to start with and marsh was 3ft lower than lake

Freshwater evaporates before saltwater


That is why the marsh behind weirs is now higher than the lake

[Smalls]

Originally Posted by "W"

Because last time they opened the weirs for 3 days the water never came out of the marsh ,it just went in for 72 hrs straight .

The marsh was already high salinity to start with and marsh was 3ft lower than lake

Freshwater evaporates before saltwater


That is why the marsh behind weirs is now higher than the lake

Well, he actually got something right.

But that has nothing to do with why the salinity becomes elevated in the marsh. Saltwater still evaporates, but it is not the salt that is evaporating. When saltwater evaporates, the salt just becomes more concentrated, thus you get higher salinities.

As far as your last post about the weirs, it doesn't surprise me.

You will never learn.

[Paulox86]

Originally Posted by "W"

Because last time they opened the weirs for 3 days the water never came out of the marsh ,it just went in for 72 hrs straight .

The marsh was already high salinity to start with and marsh was 3ft lower than lake

Freshwater evaporates before saltwater


That is why the marsh behind weirs is now higher than the lake

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?

[Gerald]

Originally Posted by Paulox86

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?

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.

[redaddiction]

Originally Posted by Paulox86

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?

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.

["W"]

Originally Posted by Paulox86

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?

Originally Posted by Gerald

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.

Originally Posted by redaddiction

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 ???

[redaddiction]

Why aren't there wiers on the intracoastal (northeast) side to let fresh water in when the salinity is too high? DUH!!!! They already have man made canals that were one time open that are closed off now, right on the Intracoastal canal.

[MathGeek]

Originally Posted by redaddiction

Why aren't there wiers on the intracoastal (northeast) side to let fresh water in when the salinity is too high? DUH!!!! They already have man made canals that were one time open that are closed off now, right on the Intracoastal canal.

Flow is a two way street, and the tides and winds would push too much salt the other way. Keeping the intracoastal fresh where it crosses 27 is a very high priority, and much more important than the relatively small mitigating input the fresh water would have in big lake.

["W"]

Originally Posted by redaddiction

Why aren't there wiers on the intracoastal (northeast) side to let fresh water in when the salinity is too high? DUH!!!! They already have man made canals that were one time open that are closed off now, right on the Intracoastal canal.

Man c'mon that would make way too much sense to do !!!

Your talking about da Gumberment