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Questions tagged [lakes]

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How fast did Lake Agassiz and Lake Ojibway drain?

Lake Agassiz and Lake_Ojibway drained around the time of the 8.2 kiloyear event, perhaps in a couple of pulses, the first subglacially and the second when the glacial ice dam finally broke. Clearly ...
David Bailey's user avatar
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2 votes
0 answers
35 views

If there was no Glaciation, what would the USA great Lakes look like?

I guess, what they looked like before Glaciation could also work as an answer. Everything I have seen on the lakes only mention their post-glacial forms even when some of them mention that they formed ...
The Great One's user avatar
3 votes
0 answers
40 views

What would Canada's larger lakes (Bear, Great Slave, Winnipeg, and Athabasca) look like without glaciation?

Canada's larger lakes (minus the "Great Lakes" that it shares with the USA) sit on the edge of the Canadian Shield (https://www.youtube.com/watch?v=2TmSP02zPaI). On the other side of the ...
The Great One's user avatar
3 votes
2 answers
237 views

How do you estimate the depth of a lake?

Say you are on the shore of an arbitrary lake in the world, and you want to predict its likely depth. What do you consider? the height of the nearby mountains the size of the lake the average ...
Nikhil's user avatar
  • 31
5 votes
1 answer
252 views

Differences between lake effect and ocean effect snow

What are the differences between the conditions that lead to lake effect snow versus ocean effect snowfall? Both can lead to significant snowfall, but usually lake effect causes large snow amounts.
arkaia's user avatar
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1 vote
0 answers
30 views

How does the water passing Dike Kokaral compare to the discharge of the Syr Darya river before its water flow was improved?

According to Wikipedia, the North Aral Sea is being partially restored, by restoring some of the Syr Darya river's flow (which was diverted by the Soviet Union for irrigation), and by building Dike ...
Speedphoenix's user avatar
1 vote
0 answers
50 views

Hydrologic Mass Balance

Old MacDonald had a farm. And on that farm, he had a pond. Old MacDonald (OMD) liked spending a lot of time fishing in his pond. One day a friend told him that the fish will grow twice as big if the ...
thelegendofaang's user avatar
6 votes
1 answer
112 views

Do lakes tend to have elliptical shapes more often than circular shapes?

I saw this interesting graphic (The World’s 25 Largest Lakes, Side by Side) of some of the largest lakes in the world. It strikes me as somewhat curious that most of the lakes have a high eccentricity ...
Mark S's user avatar
  • 163
4 votes
1 answer
96 views

What was the size of the Aral sea in year 1000 CE?

I understand that since the rise of the Soviet Union the Aral sea has dried up more and more due to irrigation from rivers diverting its water to other areas for the sake of agriculture. But is it ...
timesharer's user avatar
3 votes
1 answer
634 views

Why are there so many "horseshoe lakes", and are they really mostly in the US?

The Wikipedia disambiguation page Horseshoe lake lists 31 of them, of which 27 are in the US. Question: Why are there so many "horseshoe lakes"? Are they usually horseshoe-shaped, (or full ...
uhoh's user avatar
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2 votes
1 answer
60 views

Are Fluvial and River Terraces the same?

I study about fluvial terraces. However, resources related to this topic are limited. When I searched fluvial terraces in geomorphology books, I cannot find anything, but I find river terraces. My ...
Sun's user avatar
  • 23
1 vote
2 answers
262 views

Why is the ice on a frozen lake sometimes cracked?

The YouTube video Skating Lake Baikal, the world's deepest lake - BBC News shows a very heavily cracked lake. It doesn't just appear to be a fault line. It appears to be an actual crack that started ...
Timothy's user avatar
  • 318
1 vote
0 answers
137 views

Why is the water in Pingualuit crater so pure?

The question Is there a lake whose sole source of water is rain and has a hole at the bottom draining it? doesn't have an answer that answers my question. Also, it has a mistake in it. According to ...
Timothy's user avatar
  • 318
2 votes
4 answers
224 views

Is Oregon lake extremely pure water? If so, why?

My question is, Is the lake shown in the YouTube video Clear Lake, Oregon extremely pure water by volume not counting dissolved air which might be about 1 in 20 by volume? In case you didn't ...
Timothy's user avatar
  • 318
1 vote
3 answers
101 views

How to deal with a pond silting up [closed]

I live in a town that has a sizable pond that is dammed with a concrete overfall spillway. Decades ago the state demanded that the dam be installed to guarantee that the surface height of the pond ...
Tyler Durden's user avatar
  • 1,804
3 votes
1 answer
211 views

Have russian drilling operations in lake Vostok succeeded yet?

A couple of years ago the russians began drilling through about 2 km of ice to reach lake Vostok in Antarctica. It was hoped that they would find living organisms there which had been entombed under ...
Michael Walsby's user avatar
4 votes
0 answers
128 views

Does Earth have any stable bodies of liquid, that are not liquid water?

Overland oil spills are fairly common, so Earth arguably has some transient hydrocarbon lakes. One incident in 2013 dumped nearly 1 million gallons of oil over North Dakota, covering 13 acres of land. ...
StarlightDown's user avatar
5 votes
1 answer
123 views

Before the artificial changes of the Aral Sea, what was its average depth and salinity?

The Aral Sea was a major lake of the USSR until it suffered artificial changes, which began sometime no later than the 1960s. I am unfortunately not sure when major artificial changes began. ...
DrZ214's user avatar
  • 2,175
11 votes
1 answer
474 views

Lake outflow forming a "reverse delta"?

While rivers often form a delta when they flow into a lake, the outflow of a lake is usually a single stream. Are there lakes where the water flows off in multiple channels that merge into a single ...
Salomon E's user avatar
  • 113
18 votes
3 answers
46k views

Why are the Great Lakes not considered a sea?

From me looking at maps, excluding the Caspian sea and the Great Lakes, I see these in common for seas and lakes: Seas Most are saltwater Connected to the rest of the ocean via either an isthmus, ...
Caters's user avatar
  • 567
4 votes
1 answer
129 views

How stormy (wave height) does Lake Baikal get?

I'm trying to find info on the storminess of Lake Baikal. I want to compare wave heights in a storm on this lake to wave heights in a storm on the ocean. All I could find was very general information ...
DrZ214's user avatar
  • 2,175
8 votes
3 answers
2k views

Why is my pond / lake melting when the temperature is still far below freezing?

I recently moved into a new house with a 2 acre lake behind it. We’ve had 15 consecutive days below freezing, and the last 12 of those have been below 20 degrees (Fahrenheit)! Six days ago I shoveled ...
Geo's user avatar
  • 81
1 vote
2 answers
125 views

Results of large woody debris in river/lake

In the following questions I am wondering how large woody debris and/or submerged trees enhance river or lake environments. Also I am wondering how they are detrimental to humans. I know that large ...
mt12345's user avatar
  • 11
1 vote
1 answer
455 views

Is there a lake whose sole source of water is rain and has a hole at the bottom draining it?

Oregon lake has a drain hole at the bottom but also has water flowing into it. Pingualuit crater has no water flowing into it but probably has no drain hole at the bottom either. I'm wondering if ...
Timothy's user avatar
  • 318