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Equation 1 · Part 2 · How Earth Systems and Climate Dynamics Actually Work

Symbol α

ΔF=αln⁡ ⁣(CC0)\Delta F = \alpha \ln\!\left(\frac{C}{C_0}\right)
α\alpha

What this part means

the empirically constrained coefficient (commonly near 5.

Its job in the formula

α is an input to the expression that computes the quantity on the left.

Where the article explains it

is the standard simplified radiative-forcing relation for CO2, where C0C_0 is a reference concentration, C the current concentration, and α\alpha an empirically constrained coefficient (commonly near 5.35 W m⁻² in widely used formulations).

The passage around this formula

…the ocean enters as an instrument rather than a passive backdrop, addressed below. is the standard simplified radiative-forcing relation for CO2, where C0C_0 is a reference concentration, C the current concentration, and α\alpha an empirically constrained coefficient (commonly near 5.35 W m⁻² in widely used formulations). Its logarithmic form is itself an empirical and physical result: it reflects the fact that CO2’s absorption bands are already partially saturated at pre-industrial concentrations, so each…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the article section

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