Climate Change 2001:
Working Group I: The Scientific Basis
Other reports in this collection

Figure 7.4: Idealised schematics of two advective feedback loops involving the thermohaline circulation (THC). The signs attached to the arrows indicate the correlation between changes in the quantity of the outgoing box with that of the ingoing box, e.g., warmer sea surface temperatures (SST) lead to weaker THC. Resulting correlations of a loop are circled and they indicate whether a process is self-reinforced (positive sign) or damped (negative sign). A stabilising loop (left) is associated with changes in SST due to changes in the advection of heat. This loop may give rise to oscillations. The second loop (right) is due to the influence of advection of low latitude salty waters into the areas of deep water formation. The resulting correlation is positive and the loop may therefore cause instabilities.

Back to text

Table of contents
Other reports in this collection