Observational evidence that a Gaia-type feedback control system with proportional-integral-derivative characteristics is operating on atmospheric surface temperature at global scale
Abstract
The Gaia hypothesis (Lovelock and Margulis, 1974) proposes that there is a control system operating at global level that regulates climate and chemistry at a habitable state for the biota. Here we provide statistically significant observational evidence that a feedback control system moderating atmospheric temperature is presently operating coherently at global scale, that is to say, observational evidence for Gaia. 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 commonly used control system developed by humans, the proportional-integral-derivative (PID) control system.
- Publication:
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arXiv e-prints
- Pub Date:
- October 2018
- DOI:
- 10.48550/arXiv.1810.00977
- arXiv:
- arXiv:1810.00977
- Bibcode:
- 2018arXiv181000977L
- Keywords:
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- Physics - Atmospheric and Oceanic Physics