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Equation 3 · Part 1 · Comparing the Main Approaches to Earth Systems and Climate Dynamics

Symbol E

E(t)E(t)
EE

What this part means

E is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

E is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

The instrumental record measures Catm(t)C_{\text{atm}}(t) essentially continuously and directly, at sub-part-per-million precision, at Mauna Loa and a global network of comparable stations, and can resolve seasonal cycles as well as the long-term trend [ 1 ] . E(t) , anthropogenic emissions, is compiled from energy and land-use statistics rather than measured atmospherically at all — a different evidentiary category again, closer to an audited inventory than a physical observation.

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Learn the underlying idea

A function assigns an output to each allowed input. The expression f(x) means “apply f to x”.

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Sources cited in the surrounding passage

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