Mmastodon ScienceScience first seen 20 h ago, last 1 h ago, peak #1

Explainer: How El Niño Forms in the Pacific

Original: 🌊 NEW: El Niño begins when trade winds over the tropical # Pacific weaken, letting warm surface # water spread eastward

New attention is on how El Niño begins: trade winds over the tropical Pacific weaken, allowing warm surface water that normally pools near Indonesia to spread eastward. The zone of rising moist air shifts with it, bringing rain to coastal Peru while sinking air dries the western Pacific. Commenters are sharing the explanation as the climate pattern draws renewed interest worldwide.

Why now: El Niño conditions are currently developing, prompting interest in how the phenomenon works and its global weather impacts

El NiñoPacific OceanPeruIndonesia

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Rank over time, top of the chart is #1. 19 snapshots from 20 h ago to 1 h ago.

Evidence

• 🌊 NEW: El Niño begins when trade winds over the tropical # Pacific weaken, letting warm surface # water spread eastward instead of piling up near # Indonesia . The zone of rising moist air shifts with it, bringing # rain to coastal # Peru while sinking air dries the western… · tksst@fediscience.org · 3

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