Category Archives: MOC

Atlantic overturning in decline?

Recent direct observations of the strength of the Atlantic Meridional Overturning Circulation (AMOC) show a decline of 10-15% since 2004. Is this a temporary fluctuation or part of a longer-term decline? A new analysis suggests that we might expect a … Continue reading

Posted in Atlantic, MOC, observations, variability | 4 Comments

Predicting changes in North Atlantic temperatures

The Earth is a complex system of interacting components, such as the atmosphere and ocean, which produce a wide variety of natural variability. This natural variability ensures that the evolution of a particular region’s climate, e.g. that of Western Europe, … Continue reading

Posted in Atlantic, GCMs, MOC, predictability, SSTs, variability | 1 Comment

What happens if you spin the Earth backwards?

This might sound like a crazy idea, but bear with me. I mean, why not? We’ve got some pretty general computer models of the climate, all we have to do is change the sign of a couple of numbers.

Posted in GCMs, MOC | 15 Comments

Hysteresis of the Atlantic MOC in an AOGCM

UPDATE (16/06/11) – the paper describing this work has now been published and highlighted. The potential for a rapid collapse in the strength of the Atlantic overturning circulation (AMOC) has long been recognised. The pioneering work of Stommel first suggested … Continue reading

Posted in Atlantic, GCMs, hysteresis, MOC | Leave a comment