 Madden–Julian oscillation

The Madden-Julian Oscillation (MJO) is a significant atmospheric phenomenon characterized by the periodic fluctuation of tropical rainfall and convection. It is a source of intraseasonal variability, typically occurring on a timescale of 30 to 60 days. Key features of the MJO include: 1. **Wave-like Propagation**: The MJO manifests as a wave of enhanced and suppressed convective activity that propagates eastward around the globe in the tropics.