Questions tagged [lakes]

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19
votes
3answers
21k 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, ...
11
votes
1answer
277 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 ...
8
votes
3answers
1k 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 ...
4
votes
1answer
74 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 ...
3
votes
1answer
79 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. ...
3
votes
0answers
112 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. ...
2
votes
4answers
139 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 ...
1
vote
1answer
227 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 ...
1
vote
3answers
41 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 ...
1
vote
2answers
108 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 ...
1
vote
2answers
115 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 ...
1
vote
0answers
69 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 ...