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Kamide & Rostoker 2004
Kamide, Y. and Rostoker, G. (2004). What is the physical meaning of the AE index?. Eos, Transactions American Geophysical Union 85: doi: 10.1029/2004EO190010. issn: 0096-3941.

We would like to propose ceasing the derivation and distribution of the AE (Auroral electrojet) index because AE has no physically interpretable meaning and is therefore of no scientific value. Note that the term AE indices is different from the term AE index; the former includes the AU and AL indices, whereas the latter is just the AE index itselfc see below for the definition of AU and AL. Since the introduction of the AE indices by Davis and Sugiura <1966>, scientists have relied on the indices to monitor the level of geomagnetic disturbance resulting from the auroral electrojets and hence, by proxy, to specify the state of the magnetosphere and the ionosphere. The AE index was defined by the separation between the upper and lower envelopes of the superposed H component plots from auroral-zone magnetic observatories. The upper and lower envelopes were defined as the AU and AL indices, respectively. Thus, there is the relationship given by AE = AU -- AL.

BACKGROUND DATA FILES

Abstract

Keywords
Ionosphere, Current systems, Magnetospheric Physics, Current systems, Forum
Journal
Eos, Transactions American Geophysical Union
Publisher
American Geophysical Union
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