Google Maps now shows the lake at very low water. It looks like sandy soil flowing off a lot of islands and shoreline. Look esp near Old Fed and on the southern shore of the big islands to the north of VP and Aqualand.
It seems possible. I know that at times when Kayaking I had a mild feeling I oculd go quicker when going south. The same is true when paddling in the Chattahooche, though much more pronounced there.
I also recall one time when I was out at Galts, and the wind almost completely died. What I found truly annoying, while trying to work my way upwind was that a dead fish floating on the water, seemed to be making more rapid progress than me (going west opposite the wind, but in the direction of the dam.) Glad this didn't happen at the fall race.
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What happens in a black hole stays in a black hole.
There is always a current, it being a river. It just wouldn't be very apparent spread over such a large surface area at full pool. With the river down and the area much less (and them draining it like crazy when the water was down), the effect would be more visible - like water draining out of a bathtub.
I am apparently the right age. I've just come from the bathtub with food coloring, pipettes, time lapse video camera, scuba gear, snacks, etc. There is no current in the bathtub unless you drop the camera in. Experiment over.
There wouldn't be (the other kind of) current in a tub without inflow.
The more I look at the satellite photo the more obvious and interesting it seems (pls refrain from commentary here). The streamlines off the islands is generally toward the dam but with surprising eddies in places. Where I'da thunk there would be the most visible flow would be at Brown's Bridge, but not much there... I wonder if it's because the shore is rocky... or maybe there's an Elvis Effect from the nearby Lantern Inn.
Look again. I change my opinion. It was wind. Look at the island south of Bethel Rd. The sun/sky reflection shows the wind shadow and direction matching the sandy wash off the islands. Look also at the point just north of Brown's Bridge where you see the flow running strong up the cove, opposite the direction water would flow.
There wouldn't be (the other kind of) current in a tub without inflow.
I was referring to a bathtub being drained. The surface will look rather still when you first pull the plug and then things accelerate until those last soap bubbles drain. Sorry not to have been more clear originally.
Unless, in the interest of science, you're keeping the tub full to see what happens over time... (or you're keeping your pet alligator in there).
I wanna go back to Florida so badly... I'm really starting to like warm water.
The fish looked pretty dead to me, but he could have just been an a-hole trying make me mad. Then again, I couild have been losing ground downwind instead of going upwind.
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What happens in a black hole stays in a black hole.
Look again. I change my opinion. It was wind. Look at the island south of Bethel Rd. The sun/sky reflection shows the wind shadow and direction matching the sandy wash off the islands. Look also at the point just north of Brown's Bridge where you see the flow running strong up the cove, opposite the direction water would flow.
imho, that cove looks like what you see more is a ridge of silt runoff. Silting was real bad when the water was down. My cove probably filled at least a foot or more in a few months.
If you look at the link above, you'll see the silt lines run SW off the tip of Aqualand but NW coming out of Starboard Cove Marina (way back behind Van Pugh).
When the lake was down, the water coming out of the coves carried significant amounts of silt downstream/ river. Most of this silt had been sitting happily on the bottom until the lake went down and the coves became streams.
I say tomato, you say asparagus. It's a shame that it's so cold that we are reduced to trying to figure out how many angels can dance on top of a mast.
Well, TomatoBreath. Of course it's asparagus. It has to have been a honkin' east wind the day the image was made. There's nothing coming off the weather (east) shore, but the islands and points on the west side show lots of stuff coming off them. The variation in direction fits exactly what I'd expect to see with land effects; like the big islands in the middle where the streamlines of sand/dirt in the water veer way south.
I think there was so much silt and muck coming out of Starboard Marina because they used the low water as an opportunity to dig out a navigable path to their docks. There was a bunch of huge machines working up there for months moving dirt.
Also, I see the sun reflected on the water in more than that one place, so the image musta been put together with shots from different times or even different days.
Also, re: the bathtub– I figured we were talking about draining it. I think the whole blob of water mostly just shrinks until the vortex forms. Then surface tension comes into play and things will be drawn along the surface too. I wonder if there is current if there is inflow at the opposite end from the drain, like a lake w/ a dam. As you suggest it's still a river, just so broad that the current might not be detectable. I can't believe that current would create the soil flows in the satellite photo.
Also, I know how flies land on the ceiling... it's neither a barrel roll nor loop. When they get real close, they throw their front legs straight up, (as if to signal a touchdown) and the tiny hooks on their feet snag the ceiling. Momentum swings their hind end forward to complete the landing... ta da.
Anybody up on string theory? (I have a theory about ropes).
chris is right. sniff. sniff. Most of the silt lines coming off the islands are from the wind (which I did see). However, you still see a ton of silt coming out of a lot of the big coves - dredging or no dredging.
But.... there's still a current in Lake Lanier. Water comes in from the top, leaves from the bottom. The fly told me so as he was landing on the piece of asparagus suspended from the ceiling.
It seems possible. I know that at times when Kayaking I had a mild feeling I oculd go quicker when going south. The same is true when paddling in the Chattahooche, though much more pronounced there.
I also recall one time when I was out at Galts, and the wind almost completely died. What I found truly annoying, while trying to work my way upwind was that a dead fish floating on the water, seemed to be making more rapid progress than me (going west opposite the wind, but in the direction of the dam.) Glad this didn't happen at the fall race.
What happens in a black hole stays in a black hole.
There is always a current, it being a river. It just wouldn't be very apparent spread over such a large surface area at full pool. With the river down and the area much less (and them draining it like crazy when the water was down), the effect would be more visible - like water draining out of a bathtub.
Or, maybe it was a tidal effect like on the Great Lakes
?
http://www.newton.dep.anl.gov/askasci/phy00/phy00330.htm
This sounds like a great science fair project for those whose kids are of the right age.
What happens in a black hole stays in a black hole.
I am apparently the right age. I've just come from the bathtub with food coloring, pipettes, time lapse video camera, scuba gear, snacks, etc. There is no current in the bathtub unless you drop the camera in. Experiment over.
There wouldn't be (the other kind of) current in a tub without inflow.
The more I look at the satellite photo the more obvious and interesting it seems (pls refrain from commentary here). The streamlines off the islands is generally toward the dam but with surprising eddies in places. Where I'da thunk there would be the most visible flow would be at Brown's Bridge, but not much there... I wonder if it's because the shore is rocky... or maybe there's an Elvis Effect from the nearby Lantern Inn.
This cold is making me bonkers.
Look again. I change my opinion. It was wind. Look at the island south of Bethel Rd. The sun/sky reflection shows the wind shadow and direction matching the sandy wash off the islands. Look also at the point just north of Brown's Bridge where you see the flow running strong up the cove, opposite the direction water would flow.
I was referring to a bathtub being drained. The surface will look rather still when you first pull the plug and then things accelerate until those last soap bubbles drain. Sorry not to have been more clear originally.
Unless, in the interest of science, you're keeping the tub full to see what happens over time... (or you're keeping your pet alligator in there).
I wanna go back to Florida so badly... I'm really starting to like warm water.
You guys need more wind, and higher temps.
Randy, are you sure the fish was dead?
Marek
The fish looked pretty dead to me, but he could have just been an a-hole trying make me mad. Then again, I couild have been losing ground downwind instead of going upwind.
What happens in a black hole stays in a black hole.
http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=lake+lanier,+georgia&sll=35.190392,-82.231781&sspn=0.04861,0.077162&g=lake+lanier&ie=UTF8&hq=&hnear=Chestatee+Bay&ll=34.202805,-83.969471&spn=0.012298,0.01929&t=h&z=16
imho, that cove looks like what you see more is a ridge of silt runoff. Silting was real bad when the water was down. My cove probably filled at least a foot or more in a few months.
If you look at the link above, you'll see the silt lines run SW off the tip of Aqualand but NW coming out of Starboard Cove Marina (way back behind Van Pugh).
When the lake was down, the water coming out of the coves carried significant amounts of silt downstream/ river. Most of this silt had been sitting happily on the bottom until the lake went down and the coves became streams.
I say tomato, you say asparagus. It's a shame that it's so cold that we are reduced to trying to figure out how many angels can dance on top of a mast.
Anyone for ice boarding?
Well, TomatoBreath. Of course it's asparagus. It has to have been a honkin' east wind the day the image was made. There's nothing coming off the weather (east) shore, but the islands and points on the west side show lots of stuff coming off them. The variation in direction fits exactly what I'd expect to see with land effects; like the big islands in the middle where the streamlines of sand/dirt in the water veer way south.
I think there was so much silt and muck coming out of Starboard Marina because they used the low water as an opportunity to dig out a navigable path to their docks. There was a bunch of huge machines working up there for months moving dirt.
Also, I see the sun reflected on the water in more than that one place, so the image musta been put together with shots from different times or even different days.
Also, re: the bathtub– I figured we were talking about draining it. I think the whole blob of water mostly just shrinks until the vortex forms. Then surface tension comes into play and things will be drawn along the surface too. I wonder if there is current if there is inflow at the opposite end from the drain, like a lake w/ a dam. As you suggest it's still a river, just so broad that the current might not be detectable. I can't believe that current would create the soil flows in the satellite photo.
Also, I know how flies land on the ceiling... it's neither a barrel roll nor loop. When they get real close, they throw their front legs straight up, (as if to signal a touchdown) and the tiny hooks on their feet snag the ceiling. Momentum swings their hind end forward to complete the landing... ta da.
Anybody up on string theory? (I have a theory about ropes).
chris is right. sniff. sniff. Most of the silt lines coming off the islands are from the wind (which I did see). However, you still see a ton of silt coming out of a lot of the big coves - dredging or no dredging.
But.... there's still a current in Lake Lanier. Water comes in from the top, leaves from the bottom. The fly told me so as he was landing on the piece of asparagus suspended from the ceiling.
I wish I was as smart as you guys. Your in depth analysis of ebbing water flows in Lake Lanier has me astounded.
Furthermore, I am having a difficult time just trying to read BB at the Fed as to when interest rates will rise.
The only thing I have been able to determine for sure, at this point, is that it is cold outside.
PeelSkid
http://xkcd.com/386/
Busted. Touche.
Touche? I just stabbed my foot with my own epee...