Dave Burton@ncdave4life
Dave BurtonJul 26, 2023
3 tweets
❰1/3❱ Brock wrote, "The CERES satellite data, as released by NASA, shows the energy imbalance."
That's incorrect. CERES radiometers cannot measure energy imbalance. They are down-looking, only, with narrow fields of view. They only sample outgoing radiation, from the Earth.
❰2/3❱ To measure energy imbalance would require comprehensive measurement of both outgoing and incoming radiation. We do not have the ability to do that.
However, the imbalance can be estimated from other evidence. It is roughly 0.3 W/m².
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Dave Burton@ncdave4life
Dave BurtonJul 25 23
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It is impossible to say with confidence whether or not Earth’s energy imbalance varies over solar cycles, because Earth's energy imbalance is not measurable.
But it is possible to roughly estimate it from other things:
sealevel.info/radiative_imba
Brock Backlund@BrockPhysicist
Jul 25 23
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Do an FFT on the EEI and tell me if you see the 11 year solar luminosity variation in there. I didn’t; maybe you’ll have more luck.
❰3/3❱ However, your "quarter degree" figure is about right. The current approx. 0.3 W/m² radiative energy imbalance represents about 0.2°C of unrealized warming ("in the pipeline").
Dave Burton
Dave Burton@ncdave4life
My preferred pronoun is "harmless data drudge." https://t.co/YTkK6vaHGs Tel: +1 919-481-0098.
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