El nino la nina

    • [PDF File]January 2017 EL NIÑO & LA NIÑA - Food and Agriculture Organization

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      agriculture sector was advised to maintain preparedness despite the projected low probability of La Niña occurring. Historical data shows that severe flooding and landslides can occur even under weak La Niña conditions such as the Guinsaugon landslide (2006) and Typhoon Ketsana (local name: Ondoy) in 2009. Q U I C K F A C T S EL NIÑO & LA NIÑA

    • [PDF File]El Nino and La Nina~ - National Oceanic and Atmospheric Administration

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      Activity No. 5 El Nino and La Nina NOAA/NOAA Research/Forecast Systems Laboratory SAM II ~~ westward than usual. A La Niña often follows directly after an El Niño event. Together El Niño and La Niña are known as the El Niño–Southern Oscillation (ENSO) cycle with El Niño being the warm phase and La Niña being the cold phase of the ENSO ...

    • [PDF File]Overview of the 2017-18 La Niña and El Niño Watch in Mid-2018

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      A second-year, weak-to-moderate La Niña developed in the fall of 2017 and lasted through early spring of 2018. This La Niña followed a period of ENSO -neutral conditions during the first half of 2017. From January to May 2017, many model forecasts of the Niño -3.4 region of sea surface temperatures were predicting El Niño

    • What Controls the Duration of El Niño and La Niña Events? - JSTOR

      El Niño and La Niña(Chen et al. 2016). The asymmetry in the duration of El Niño and La Niña is robust for strong events (Okumura and Deser 2010). When we also consider moderate and weak ENSO events, however, the temporal evolution of El Niño and La Niña varies greatly from event to event as shown in the time series of the Niño-3.4 index ...

    • [PDF File]What are La Niña and El Niño and why do they matter?

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      How often do El Niño and La Niña typically occur? l Niñ o añd La Niñ a episodes typically occur every 3-5 years. How long do El Niño and La Niña typically last? l Niñ o typically lasts 9-12 moñths while La Niñ a typically lasts 1-3 years. They both teñd to develop duriñg March-Juñe, reachiñg peak iñteñsity duriñg ecember-April ...

    • [PDF File]El Nino Activity Key - National Oceanic and Atmospheric Administration

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      NOAA Research El Nino Page 1 El Nino Activity Key I. Introduction El Nino refers to the irregular warming in the sea surface temperatures from the coasts of Peru and Ecuador to the equatorial central Pacific. This causes a disruption of the ocean-atmosphere system in the tropical Pacific having important consequences for weather around the globe.

    • [PDF File]El Niño, La Niña and Arizona Climate - University of Arizona

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      patterns. El Niño is the warm phase of the El Niño-Southern Oscillation (ENSO) which typically cycles between a warm phase (El Niño) and cool phase (La Niña where water in the eastern Pacific is unusually cool) every three to seven years. El Niño and La Niña events can have major impacts on global circulation patterns by shifting

    • [PDF File]El Nino Impacts on Palau - National Weather Service

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      The El Niño – Southern Oscillation (ENSO) is a recurring climate pattern where about 3 to 7 years climate conditions over the Pacific Ocean basin change dramatically. The extremes of this oscillation are referred to as El Niño and La Niña. Normally, strong trade winds blow from the east along the equator, ocean waters are warm and rainfall is

    • [PDF File]El Niño and La Niña - NASA

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      maintenance, and dissipation of El Niño and La Niña events. The 2015 El Niño Event After five consecutive months with SSTs 0.5 °C above the long-term mean, the National Oceanic and Atmospheric Admin-istration (NOAA) issued an El Niño Advisory in July 2015 to declare the arrival of the phenomenon. A strong El Niño (sea

    • [PDF File]La Nina ending but warming El Nino may strike soon: UN

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      Conditions oscillate between La Nina and its opposite El Nino, with neutral conditions in between. The WMO said there was a 90-percent probability of neutral conditions

    • [PDF File]Lesson 11: El Niño National Science - NOAA

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      Other interactions like El Niño and La Niña are variable and difficult to predict. 2. During an El Niño event, warm water builds up in the equatorial Pacific, leading to severe weather events and impacts on marine life. How does an El Niño occur? (slides 5 and 6) 1. The exact causes of El Niño are not completely understood. They are ...

    • [PDF File]Standard Operating Procedures EARLY ACTION TO EL NIÑO/LA NIÑA EPISODES ...

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      El Niño-Southern Oscillation (ENSO) events – i.e. El Niño and La Niña – are natural phenomena that occur on average every two to seven years . They affect seasonal climate and associated weather patterns (notably rainfall and temperature) around the world in different ways. They are known to

    • [PDF File]Ocean Phytoplankton, El Niño and La Niña - NASA

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      El Niño and La Niña represent departures from the average, or neutral, conditions. With the onset of El Niño, a drop in air pressure over the equatorial eastern Pacific causes the trade winds to weaken and sometimes even reverse, driving warm water eastward, towards South America. Below the ocean’s surface, the

    • [PDF File]EL NIÑO/SOUTHERN OSCILLATION (ENSO) DIAGNOSTIC DISCUSSION CLIMATE ...

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      EL NIÑO/SOUTHERN OSCILLATION (ENSO) DIAGNOSTIC DISCUSSION issued by CLIMATE PREDICTION CENTER/NCEP/NWS 9 February 2023 ENSO Alert System Status: La Niña Advisory Synopsis: ENSO-neutral conditions are expected to begin within the next couple of months, and persist through the Northern Hemisphere spring and early summer.

    • [PDF File]What is El Niño & La Niña? - National Weather Service

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      El Niño and La Niña are the extreme phases of the ENSO cycle; between these two phases is a third phase called ENSO-neutral. ENSO Phases ENSO-neutral: Normally, strong trade winds blow from the east along the equator, pushing warm water into the western Pacific Ocean. El Niño conditions occur when abnormally warm waters

    • [PDF File]El Niño and La Niña Episodes and Their Impact On The Weather In ...

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      are all El Niño years, with four of the six being strong El Niño episodes. The wettest water season in Fresno ever in 1982-1983 was a strong El Niño. Of the four wettest water seasons in Bakersfield since 1950-1951, all have been El Niño. The wettest water season in Bakersfield in 1997-1998 was a strong El Niño. In Grant Grove, the three ...

    • [PDF File]El Nino and La Nina: A Weather Phenomenon - Cabarrus County Schools

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      opposite of El Nino. • La Nina brings wetter weather to areas that are usually very dry during El Nino • The effects of La Nina are usually less extreme Impact of La Nina. La Nina diagram Winds push from east to west and push wetter weather to the Pacific region; drier weather in

    • [PDF File]El Nino Impacts on Hawaii

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      for most of the El Niño year. Dry conditions tend to start by the end of the El Niño year and are at their worst during the first half of the Year After El Niño. In some cases dry conditions can persist for the entire year after El Niño. • Water supply will decrease • Farming & crops will be damaged • Habitats for terrestrial and marine

    • [PDF File]Geoinquiry | ES 8 - El Niño

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      – La Nina is the opposite event to El Niño, generally observed as unusually cold ocean temperatures in the Equatorial Pacific.? From your observations of the 2015-2016 El Niño event, what sea surface temperature conditions may be present during a La Niña event? [Sea surface temperatures will be below average.]

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