North Atlantic Warm Pool as a Signal of Gulf Stream Slowdown

robertscribbler

Over the past few years we’ve seen very warm sea surface temperatures in the Gulf Stream off the U.S. East Coast. This heat traffic jam is an indicator of reduced energy transfer into the North Atlantic. In other words, there’s a strong observational signal that the Gulf Stream is slowing down.

(A much warmer than normal pool of water off the U.S. East Coast juxtaposed to an intense cool pool south of Greenland is a climate indicator of Gulf Stream slowdown.)

The development of a cool pool near Greenland, and associated with Greenland melt, is a further indicator of this trend. Recently, the near East Coast warm pool has enlarged and intensified. Meanwhile, the strength of the Greenland cool pool has also increased even as cold water currents issuing from Greenland appear to have sped up.

As noted above, Greenland melt is a major apparent driver. As glaciers like Svalbard…

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