On May 23, 10:21 am, Uncle Ben <
bgr...@nycap.rr.com> wrote:
> When I ventured into the Skeptical Science site ("sks") to explain
> Spencer to those guys,
See, that's your problem. You assume he's right and the other
scientists just can't see it. Why don't you go there and ask about
Spencer instead?
>not all of whom are stupid, I was confronted by
> a smart guy who confdidently asserted that (1) if Spencer was
> claiming to measure feedback directly and (2) if he was relying on
> satellite data to pick out the feedback signal, that is impossible! He
> must be wrong. The feedback is radiation from CO2 molecules --, infra-
> red radiation, to be specific. That is the only kind of energy the
> satellites can detect. And that weak signal is hopelessly masked by
> the forcing radiation from the sun. Game, set, match!
>
> He has a point. This is why measuring feedback is hard. But that also
> is why Spencer deserves the Nobel Prize. He has done what was thought
> to be impossible. The IR signal from CO2 in the air cannot easily be
> identified against the strong IR signal generated by the sun when it
> warms the ocean surface, which then sends IR up to the satellites
> along with the weak IR signal from the excited CO2 molecules. How can
> the two IR signals be picked apart?
>
> Spencer's solution is to make use of the fact that there is more than
> one way to transfer thermal energy. When the ocean surface is warmer
> than the air, it can transfer energy by evaporation, and then
> convection to carry the energy further into the sky. (There may be
> conduction, as well, but it is probably insignificant.) Energy can be
> returned to the ocean by precipitation. These transfers do not
> involve radiation.
No, but they're minor contributions.
>If only one could identify periods of time in
> which these transfer means alone are operating,
Yeah, get the earth to stop doing anything.
> then there will be no
> IR radiation acting as a "forcing" and the "feedback" remains as the
> only radiative signal.
>
> We can't turn off the sun, but nature has provided an umbrella to
> shield us -- low clouds. Warmists
See, now you're being idiotic. What's a "warmist"?
>will insist that clouds are an
> internal matter governed by temperature, and it is true, of course.
> But that temperature effect is not caused solely by the immediate
> effect of the sun. Ocean currents can make clouds too.
Clouds in the ocean?
>
> Spencer realized that one can detect the difference between warm water
> warmed immediately by the sun and warm water warmed previously and
> transported by currents. The big difference between heat now from the
> sun and heat earlier stored in ocean water is the timing. It takes
> time to heat water radiatively and have that water heat the air; if
> the water is already warm at the time of measurement, the air can be
> heated quickly -- non-radiatively.
>
> The rest is easy, as I have so often explained here. Spencer watches
> for periods in which the forcing transfer is non-radiative, because
> clouds prevent the radiative process.
And he knows this how?
> He measures the only IR signal
> remaining, which is from the CO2, and he has the true feedback
> sensitivity. It is low! Game over!
>
> Uncle Ben
So why do almost all climate scientists not agree with him? Maybe you
could learn something from them.
Hint: Like Bill Ward, hitching your wagon to one scientist that no
other scientist agrees with is not smart.