Climate Research

   

On the Dynamics of Global Temperature

Authors: David R.B. Stockwell

In this alternative theory of global temperature dynamics over the annual to the glacial time scales, the accumulation of variations in solar irradiance dominates the dynamics of global temperature change. A straightforward recurrence matrix representation of the atmosphere/surface/deep ocean system, models temperature changes by (1) the size of a forcing, (2) its duration (due to accumulation of heat), and (3) the depth of forcing in the atmosphere/surface/deep ocean system (due to increasing mixing losses and increasing intrinsic gain with depth). The model can explain most of the rise in temperature since 1950, and more than 70\% of the variance with correct phase shift of the 11-year solar cycle. Global temperature displays the characteristics of an accumulative system over 6 temporal orders of magnitude, as shown by a linear $f^{-1}$ log-log relationship of frequency to the temperature range, and other statistical relationships such as near random-walk and distribution asymmetry. Over the last century, annual global surface temperature rises or falls $0.063\pm 0.028C/W/m^2$ per year when solar irradiance is greater or less than an equilibrium value of $1366W/m^2$ at top-of-atmosphere. Due to an extremely slow characteristic time scale the notion of 'equilibrium climate sensitivity' is largely superfluous. The theory does not require a range of distinctive feedback and lag parameters. Mixing losses attenuate the effectiveness of greenhouse gasses, and the amplification of solar variations by slow accumulation of heat dominates the dynamics of global temperature at all time-scales.

Comments: 55 pages

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Submission history

[v1] 1 Aug 2011

Unique-IP document downloads: 1292 times

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