Observational evidence that a feedback control system with proportional-integral-derivative characteristics is operating on atmospheric surface temperature at global scale
L. M. W. Leggett, David A. Ball
Abstract
Here we provide statistically significant observational evidence that a feedback control system moderating atmospheric temperature is presently operating coherently at global scale. Further, this control system is of a sophisticated type, involving the corrective feedback not only of a linear error term but also its derivative and its integral. This makes it of the same type as the most widely used control system developed by humans, the proportional-integral-derivative (PID) control system.
Topics & Concepts
PID controllerControl theory (sociology)Derivative (finance)Scale (ratio)Feedback controlControl (management)Environmental scienceComputer scienceTemperature controlMathematicsControl engineeringPhysicsEngineeringQuantum mechanicsArtificial intelligenceEconomicsFinancial economicsAdvanced Thermodynamics and Statistical MechanicsClimate variability and modelsEarth Systems and Cosmic Evolution