noun
Meaning 1
A portion of a magnetograph recording showing electric currents in the Earth's ionosphere caused by a solar flare, identified by its characteristic shape, likened to a crochet hook.
Definition source: English Wiktionary via Wiktextract
Topics: natural-sciences, physical-sciences, physics
Examples
- 1969, John Marshall, R. Alan Plumb, J. Van Mieghem (series editor), Atmosphere, Ocean and Climate Dynamics: An Introductory Text, International Geophysics Series, page 191, With regard to the magnetic crochet, we recall that the conductivity per ion pair is so small below 80 km that huge changes of electron concentration would be required to enable sizable electric currents to flow.
Meaning relationships
Synonyms: none provided
Antonyms: none provided