The Temperature Feedback Problem

Christopher Monckton
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Christopher Monckton: Science and Public Policy Institute 5501 Merchants' View Square, #209, Haymarket, VA 20169

Energy & Environment, 2015, vol. 26, issue 5, 829-840

Abstract: In the past 810 ka, inferred variability of absolute temperature has barely exceeded ±3 K, or ±1 % of the period mean. This thermostatic behavior seems inconsistent with a feedback sum f t = (σ i f t,i ) ≫ 0 over any term of years t . In electronic circuits, as the loop gain g t exceeds 1, the Bode system-gain relation G t = (1 − g t ) −1 models the abrupt transition of the output voltage from V t → + ∞ to − ∞ ↠V t ( G t , V t being momentarily undefined at the singularity, where g t = 1). Yet in the climate, where g t might plausibly exceed unity owing to, say, the near-exponential Clausius-Clapeyron increase in the water-vapor carrying capacity of the atmospheric space as it warms, +Δ f t ⇒ +Δ T t ⇠−Δ T t for all f t > 0. In this and several other material respects the Bode relation, which as clearly specifies a negative dynamical-system response to g t > 1 as a positive response to g t

Keywords: Climate sensitivity; general-circulation model; radiative forcing; temperature feedback; Bode equation; feedback amplification (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:sae:engenv:v:26:y:2015:i:5:p:829-840

DOI: 10.1260/0958-305X.26.5.829

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