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  1. What is ENSO? - National Weather Service

    The El Niño-Southern Oscillation (ENSO) is a recurring climate pattern involving changes in the temperature of waters in the central and eastern tropical Pacific Ocean.

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    Eastern Pacific
  2. El Niño–Southern Oscillation - Wikipedia

  3. What are El Niño and La Niña, and how do they …

    Apr 16, 2024 · El Niño is part of the natural climate phenomenon called the El Niño Southern Oscillation (ENSO). It has two opposite states: El Niño and La Niña, both of which significantly alter global...

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    El Niño
    Current La Nina El Nino Conditions
    Climate Change
  4. What are El Nino and La Nina? - NOAA's National Ocean Service

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    El Niño
    Climate Change
    La Nina vs El Nino Rainfall
    NOAA El Nino and La Nina
  5. El Niño and La Niña - National Oceanic and …

    Jul 1, 2015 · By influencing global temperatures and precipitation, the El Niño/Southern Oscillation (ENSO) significantly impacts Earth’s ecosystems and human societies. El Niño and La Niña are opposite extremes of the ENSO, …

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    El Niño
    Enso
  6. El Nino Index Dashboard: NOAA Physical Sciences …

    17 rows · ENSO Precipitation Index. The index is based on rainfall anomalies in two rectangular areas, one in the eastern tropical Pacific (10°S-10°N, 160°E-100°W) and the other over the Maritime Continent (10°S-10°N, 90°E-150°E).

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    Eastern Pacific
    El Nino NOAA
  7. Understanding El Niño - National Oceanic and …

    Feb 2, 2016 · El Niño is a naturally occurring climate pattern associated with warming of the ocean surface temperatures in the central and eastern tropical Pacific Ocean, which can significantly influence weather patterns, ocean …

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    El Niño
    Eastern Pacific
  8. El Niño and La Niña: Frequently asked questions

    Jan 18, 2016 · El Niño and La Niña are the warm and cool phases of ENSO (pronounced “en-so”). ENSO is the most influential natural climate pattern on Earth. ENSO swings back and forth every few years.

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    El Niño
    Current La Nina El Nino Conditions
    El Nino Atmospheric Conditions
  9. El Niño Southern Oscillation (ENSO) - World Health …

    Nov 9, 2023 · El Niño Southern Oscillation (ENSO) is a naturally occurring large-scale climatic phenomenon involving fluctuating ocean temperatures in the central and eastern equatorial Pacific, coupled with changes in the overlying …

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    El Niño
    Eastern Pacific