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Nicholas Tyrrell added Tropics_vs_extratropics.html
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You might ask; what if you changed the temperature of the Southern Ocean or the
North Atlantic, would you get the same land response?\\
The answer is, no.\\
We've found that the tropical oceans have the greatest influence on land temperatures. The reason is
that warmer tropical oceans result in lots of atmospheric convection from the
surface up to about 10-15km above the ocean: the troposphere. Changes in colder
ocean temperatures will not cause the kind of convection that penetrates up into
the troposphere.\\
If you add what we call a temperature perturbation to the troposphere, the tropical atmosphere will efficiently transport that perturbation around the globe, so for a big enough perturbation the Once the warmer temperatures reach the troposphere, they spread
out and encircle the earth. The ocean temperature changes are amplified because
the land is more responsive to these tropospheric temperature changes.
