Diagram Of El Nino And La Nina
For example during the 1997 98 el niño event which many consider the el niño of the century surface temperatures were around 3 5 c warmer than normal in the eastern tropical pacific but.
Diagram of el nino and la nina. El nino and la nina. 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. El nino la nina compare and contrast the weather phenomena in your science notebook.
El niño and la niña years and intensities based on oceanic ni ño index oni jan null ccm updated thru apr may jun 2020. 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. 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. Drier weather in the west coast of the us.
The lower diagram illustrates the beginnings of el niño with. 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. 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. Update on el niño la niña and the southern oscillation geofileonline figure 1.
El nino and la nina are two of the three phases of a natural cycle called enso the el nino southern oscillation across the tropical pacific. El nino and la nina el nino and la nina animation. Strong el niño conditions in december 1997 are shown on the bottom panel with warm water red extending all along the equator. Climatic conditions over the pacific ocean and the beginnings of el niño.
El nino and la nina the ocean and weather. The upper diagram shows the normal atmospheric and oceanic conditions in the equatorial pacific. 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. Red orange colors indicate warm ocean surface temperatures yellow greenish colors indicate cooler temperatures.
Schematic diagrams of el niño normal and la niña conditions. The blue band is the thermocline approximately the location of water that is about 20ºc 50ºf. Enso oscillates between el nino conditions neutral.