Not exact matches
However, the mixed
layer being accessible to turbulent wave mixing with the atmosphere, is essentially in contact with the atmosphere, and over fairly short times
equilibrates with it and other parts of the biosphere.
The reasons are also based on the physics, which require that initial equilibration involves the rapidly
equilibrating sinks in the ocean mixed
layer and some terrestrial sources, while the overall decay rate that involves slower equilibration with larger sinks is much slower.
That
layer does not, as IPCC claims,
equilibrate on a time scale of a year or any other length of time.
But that is the implication in the AGW model when it makes CO2 (of one particular species) accumulate in the atmosphere waiting for the surface
layer to
equilibrate, and in the bargain lowering its pH.
And p. 347 B&A correctly conclude for top post
equilibrated Fig. 1: «As we saw in section 4.4, the natural state of affairs is for the temperature of an isolated
layer of air in a gravitational field to decrease with (increasing) height»