Questions tagged [lakes]

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1answer
159 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 ...
3
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1answer
67 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 ...
3
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1answer
105 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 ...
2
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1answer
36 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 ...
1
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2answers
120 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 ...
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0answers
89 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 ...
2
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4answers
154 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
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3answers
49 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 ...
19
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3answers
31k 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
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1answer
348 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 ...
3
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1answer
93 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
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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. ...
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3answers
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 ...
4
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1answer
83 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 ...
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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
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1answer
278 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 ...