NiñaPhasen
NiñaPhasen refer to the La Niña phase within the El Niño–Southern Oscillation (ENSO) cycle. They are characterized by cooler-than-average sea surface temperatures in the central and eastern tropical Pacific, especially in the Niño 3.4 region, and by stronger-than-average trade winds that enhance upwelling along the western coast of South America. These conditions disrupt the usual west-to-east transport of heat in the tropical Pacific and produce characteristic atmospheric patterns.
Monitoring and classification rely largely on the Oceanic Niño Index (ONI), a 3‑month running average of SST
Impacts of NiñaPhasen vary by region but typically include changes in precipitation and temperature linked to
NiñaPhasen are part of a natural climate cycle tracked by meteorological organizations worldwide, including the NOAA