// definition
El Niño
The warm phase of ENSO
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Short definition
The warm phase of the El Niño–Southern Oscillation (ENSO), a coupled ocean–atmosphere phenomenon in the tropical Pacific. Weaker trade winds and shifts in warm water and convection change rainfall patterns. Local effects also depend on the season and other climate conditions.
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Intuition
Assess local conditions before tracing the economic dependencies of the ocean signal.