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    simsa02 (simsa02@mastodon.social)'s status on Thursday, 14-Sep-2023 07:08:34 JSTsimsa02simsa02
    in reply to
    • Frau Nora 🦋

    @fraunora
    As we enter a year of El Niño, start here for general overview: https://en.wikipedia.org/w/index.php?title=El_Ni%C3%B1o&section=8#Regional_impacts

    More details for 2020-2023, years of El Niña:
    https://en.wikipedia.org/wiki/2020%E2%80%932023_La_Ni%C3%B1a_event#Effects

    I'd suggest for a chronology of disasters you skim the web for El Niño & El Niña related surveys.

    In conversationThursday, 14-Sep-2023 07:08:34 JST from mastodon.socialpermalink

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      El Niño
      El Niño ( el NEEN-yoh, Spanish: [el ˈniɲo]; lit. 'The Boy') is the warm phase of the El Niño–Southern Oscillation (ENSO) and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific (approximately between the International Date Line and 120°W), including the area off the Pacific coast of South America. The ENSO is the cycle of warm and cold sea surface temperature (SST) of the tropical central and eastern Pacific Ocean. El Niño is accompanied by high air pressure in the western Pacific and low air pressure in the eastern Pacific. El Niño phases are known to last close to four years; however, records demonstrate that the cycles have lasted between two and seven years. During the development of El Niño, rainfall develops between September–November. The cool phase of ENSO is ...
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      2020–2023 La Niña event
      The 2020–2023 La Niña event was a rare three-year, triple-dip La Niña. The impact of the event led to numerous natural disasters that were either sparked or fueled by the La Niña. La Niña refers to the reduction in the temperature of the ocean surface across the central and eastern equatorial Pacific, accompanied by notable changes in the tropical atmospheric circulation. This includes alterations in wind patterns, pressure, and rainfall. The cold phase of the El Niño Southern Oscillation (ENSO), known as La Niña, typically produces contrasting effects on weather and climate compared to El Niño, which is the warm phase of the same phenomenon. Meteorological progression Starting in 2020, the Pacific was in a ENSO-neutral condition that started in mid-2019, with no El Niño or La Niña occurring. On July 2020, various meteorological agencies declared La Niña conditions in the Pacific after observed cooling in the Niño 3.4 region. The first peak of the event occurred in late-2020, and the La Niña conditions soon decayed in March 2021, as ENSO-neutral was declared in the Pacific. The Niño 3.4 index hovered just below...
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