Diagram Of El Nino And La Nina
Climatic conditions over the pacific ocean and the beginnings of el niño.
Diagram of el nino and la nina. Update on el niño la niña and the southern oscillation geofileonline figure 1. Drier weather in the west coast of the us. The blue band is the thermocline approximately the location of water that is about 20ºc 50ºf. Enso oscillates between el nino conditions neutral.
El niño and la niña are the warm and cool phases of a recurring climate pattern across the tropical pacific the el niño southern oscillation or enso for short. Presentations ppt key pdf logging in or signing up. The left side of each diagram is the western pacific ocean near asia and the right side is the eastern pacific ocean near south america. The oceanic ni ñ o index oni has become the de facto standard that noaa uses for identifying el ni ñ o warm and la ni ña cool events in the tropical pacific.
El niño and la niña are opposite phases of the el niño southern oscillation enso cycle with la niña sometimes referred to as the cold phase of enso and el niño as the warm phase of enso. El nino and la nina. These large stores of heat el niño or lack of heat la niña act like a flywheel and ensure that an event will not dissipate rapidly. The pattern can shift back and forth irregularly every two to seven years and each phase triggers predictable disruptions of temperature precipitation and winds.
El niño and la niña are opposite phases of what is known as the el niño southern oscillation enso cycle the enso cycle is a scientific term that describes the fluctuations in temperature between the ocean and atmosphere in the east central equatorial pacific approximately between the international date line and 120 degrees west. The upper diagram shows the normal atmospheric and oceanic conditions in the equatorial pacific. El nino and la nina el nino and la nina animation. El nino la nina compare and contrast the weather phenomena in your science notebook.
El nino and la nina the ocean and weather. Strong el niño conditions in december 1997 are shown on the bottom panel with warm water red extending all along the equator. La nina diagram winds push from east to west and push wetter weather to the pacific region. Schematic diagrams of el niño normal and la niña conditions.
It is the running 3 month mean sst anomaly for the ni ñ o 3 4 region i e 5 o n 5 o s 120 o 170 o w. Red orange colors indicate warm ocean surface temperatures yellow greenish colors indicate cooler temperatures. El niño and la niña years and intensities based on oceanic ni ño index oni jan null ccm updated thru apr may jun 2020.