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Conceptual drawing of Gulf Stream and the Atlantic Meridional Overturning Circulation (AMOC).

Conceptual drawing of Gulf Stream and the Atlantic Meridional Overturning Circulation (AMOC).
Conceptual drawing of Gulf Stream and the Atlantic Meridional Overturning Circulation (AMOC).
Conceptual drawing of Gulf Stream and the Atlantic Meridional Overturning Circulation (AMOC).
Conceptual drawing of Gulf Stream and the Atlantic Meridional Overturning Circulation (AMOC).
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449794
Renier, Natalie
Conceptual drawing of Gulf Stream and the Atlantic Meridional Overturning Circulation (AMOC).
Illustration
05/09/2008
AMOC_round5.jpg
Caption from Oceanus magazine, Vol. 53, No. 2, pg. 34:
A key component of Earths climate system is the Atlantic Meridional Overturning Circulation. It transports warm, salty surface waters into the North Atlantic, where they lose heat to the atmosphere. The waters become colder and denser and sink near Greenland and flow southward to continue the loop. Scientists expect global warming to slow this circulation as melting ice and more rainfall add buoyant fresh water to the region where waters sink. But increased evaporation at latitudes to the south could compensate for this slowdown by bringing saltier waters north. Small eddies help to spread this salty water northward by stirring the edges of the North Atlantic Gyre.
Image Of the Day caption:
Sam Levang, a graduate student in the MIT-WHOI Joint Program, has been studying the Atlantic Meridional Overturning Circulation, a critical component of Earth's climate system. It transports warm and salty surface waters into the North Atlantic, where they release heat to the atmosphere. The waters become colder and denser and sink near Greenland and flow southward to continue the loop. Scientists expect global warming to slow this circulation as melting ice and additional rainfall add buoyant fresh water to the region where waters sink. But increased evaporation to the south could compensate for this slowdown by bringing saltier waters north. Small eddies may help to spread this salty water northward.
Caption from Oceanus online:
A key component of Earth's climate system is the Atlantic Meridional Overturning Circulation (AMOC). It transports warm and salty surface waters into the North Atlantic, where they lose heat to the atmosphere. The waters become colder and denser and sink near Greenland and flow southward to continue the loop. Scientists expect global warming to slow this circulation as melting ice and additional rainfall add buoyant fresh water to the region where waters sink. But increased evaporation at lower latitudes to the south could compensate for this slowdown by bringing saltier waters north. Small eddies help to spread this salty water northward by stirring the edges of the gyres.
Illustration by Natalie Renier
© Woods Hole Oceanographic Institution
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