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ENSO Info


The ENSO System

>
Overview
>
 Advanced Theory
>
 ENSO-Related Current Information

Overview

>
 ENSO Basics
What are El Niño, La Niña and ENSO.
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 Monitoring ENSO
The observations and indices we use to monitor the ENSO system.
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 Defining ENSO
How El Niño and La Niña are defined, and when they occurred in the past.
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 Predicting ENSO
How we predict what the ENSO system will do in the future.
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 Links and References
Resources for further general information about the ENSO system.

Advanced Theory

> The Delayed Oscillator
The underpinning dynamical theory of what drives the ENSO system.

ENSO-Related Current Information

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 ENSO Quick Look
One page overview of current and forecast ENSO conditions.
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 ENSO Update
Monthly summary of the current state of ENSO and of ENSO developments for the coming 6 months or more.
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 Technical ENSO Update
Expanded technical discussion of the ENSO Update.
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 Summary of Model Predictions
A graphical and tabular summary of Nino3.4 predictions from many modeling centers around the world.
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 UN/WMO ENSO Statement
An El Niño outlook produced for the World Meteorological Organization (WMO) in coordination with the IRI.
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 ENSO Observations
A variety of ENSO observations available from the IRI ENSO Maproom. (Will open new window.)