The story
Discovered in 1971 by Roland Madden and Paul Julian of the American National Center for Atmospheric Research.
Etymology from Wiktionary, CC BY-SA 4.0.
Madden-Julian oscillation
Today it means: The largest element of the intraseasonal variability in the tropical atmosphere: a large-scale coupling between atmospheric circulation and tropical deep convection, manifesting itself most clearly as anomalous rainfall. Full definition →