Questions tagged [thermohaline-circulation]

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22
votes
4answers
4k views

What causes bottom water to rise?

The water close to the deep ocean floor is called bottom water. It may be located in deep valleys or trenches. I understand that water flowing to the Arctic will sink there, because it's saltier and ...
19
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1answer
1k views

What was the ocean circulation like during the time of Pangaea?

So Enderton and Marshall (2009) wrote an interesting paper on the ocean circulation of various aquaplanets covered with certain terrain: e.g. an aquaplanet with a small ridge of land that ranged from ...
18
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1answer
3k views

How long does it take for the ocean conveyor to circulate?

What is the period of the thermohaline circulation in the ocean? Obviously, individual particles may take longer or shorter, but what is the average for a small water parcel to do a full loop and end ...
8
votes
1answer
87 views

Does the meridional overturning circulation slow down the temperature increase from global warming?

Does it result in an increased exchange of surface heat and deepwater heat, which, in turn, help increase the amount of CO2 and heat that the deep oceans absorb? Related-On-Wikipedia: Meridional ...
7
votes
2answers
4k views

Thermohaline: Why is cold and dense seawater salty when warm water holds more dissolved salts?

I read that thermohaline circulation is caused by cold and saline water sinking, while warm and less dense water rises. link I understand that saline water is more dense, as there is a higher mass ...
7
votes
1answer
171 views

How was the atmospheric/oceanic circulation different prior to the formation of the Isthmus of Panama?

Did El Niño extend all the way to the West Coast of Africa? Did the meridional overturning circulation exist back then? Was there another overturning circulation that existed?
6
votes
1answer
282 views

Thermohaline Circulation in the Oceans

I'm slightly confused by how thermohaline circulation works in the Earth's oceans. Is it different for surface water as opposed to deep water? I thought that warm water from the equator is ...
6
votes
1answer
97 views

How does the meridional overturning circulation affect sedimentation rates in the North Atlantic?

There's a lot of downwelling in the region. Does this increase sedimentation rates?
6
votes
1answer
102 views

Why does the meridional overturning circulation take the convoluted path that it takes?

Why does it take the very weird loop that it takes in the Pacific Ocean? And also in the Indian ocean too?
5
votes
1answer
552 views

Is the gulf stream both a wind-driven current and part of thermohaline circulation?

Currents are formed in 3 major ways: Tidal Currents Wind-driven Currents Thermohaline circulation I've seen the gulf stream mentioned as both a wind-driven surface current and being part of the ...