The diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches).8 people found this useful.he diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches). 8 people found this useful.
Positive feedback mechanism. A process whereby an initial change in an atmospheric process will tend to either reinforce the process (positive feedback) or weaken the process (negative feedback). See Feedback mechanism.
There are many feedback mechanisms in the climate system. that can either amplify (âpositive feedbackâ) or diminish (ânegative. feedbackâ) the effects of a change in climate forcing. For example, as rising concentrations of greenhouse gases warm Earthâs cli-. mate, snow and ice begin to melt.