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El Nino and La Nina
El Nino and La Nina are opposite phases of ENSO (El Nino Southern Oscillation), a coupled ocean-atmosphere oscillation in the Tropical Pacific Ocean that exerts an influence on weather throughout much of the world. Being an oscillation, it moves between these two phases every few years, triggered initially by changes in the atmospheric circulation with ocean temperature changes following. It is measured by the Southern Oscillation Index, which compares surface pressures at Tahiti and Darwin, Australia.
313 Questions
Are the Humboldt current and El Niño current the same?
No, the Humboldt Current and El Niño currents are not the same. The Humboldt Current is a cold ocean current that flows north along the western coast of South America, while El Niño is a climate phenomenon characterized by the warming of sea surface temperatures in the central and eastern tropical Pacific Ocean which can disrupt weather patterns globally.
Which is not likely to be impacted by el nino?
One possible outcome of El Niño is increased rainfall in parts of the United States, such as California. This surplus of rainfall can help alleviate drought conditions and replenish water supplies.
Why did the flood happened in EL NINO?
During an El Niño event, warmer-than-normal ocean temperatures in the equatorial Pacific Ocean lead to changes in global weather patterns, resulting in increased rainfall in certain regions. In some areas, this can lead to heavy precipitation and flooding events due to the higher moisture content in the atmosphere.
When was the last el nino in the galapagos islands?
The last major El Niño event occurred in 2025 in the Galapagos Islands. It brought warmer ocean temperatures, impacting the marine and terrestrial ecosystems in the region. These events can have significant effects on the islands' biodiversity.
Ocean temperatures off the west coast of South America decrease.
"Modoki" is a Japanese word which means "it looks similar to the traditional El Nino from the outer side but actually its internal physics/dynamics is different"......
The "Modoki" or Central-Pacific El Niño debateThe traditional Niño involves temperature anomalies in the Eastern Pacific. However, in the last two decades non-traditional El Niños were observed, in which the usual place of the temperature anomaly (Nino 1 and 2) is not affected, but an anomaly arises in the central Pacific. The phenomenon is called Central Pacific (CP) El Niño, "dateline" El Niño (because the anomaly arises near the dateline).How are El Nino sea surface temperature and weather conditions different from normal conditions?
"Trade winds diminish in the Central and Western Pacific. The thermocline is depressed in the east and elevated in the west. Sea surface temperatures stay high when usually, the temperature drops in the Eastern Pacific. (The thermocline is a drop in sea temperature.)" NOAA Research; El Nino Activity Key
How far north were coastal waters affected by El Nino?
During an El Niño event, coastal waters as far north as the Pacific Northwest of the United States can be affected by changes in sea surface temperatures, currents, and weather patterns. The impact may vary each El Niño event, but typically regions along the coast can experience warmer waters, altered marine ecosystems, and different weather patterns.
What statement accurately describes a La Nina event?
La Nina is a climate pattern characterized by below-average sea surface temperatures in the central and eastern tropical Pacific Ocean. It often leads to increased rainfall in the western Pacific and drier conditions in the eastern Pacific, which can influence global weather patterns, including more hurricanes in the Atlantic.
Why is el nino an la Nina bad?
El Niño and La Niña can both have negative impacts on global weather patterns and ecosystems. El Niño brings warmer sea surface temperatures and can lead to increased precipitation in some regions, causing flooding and drought in others. La Niña, on the other hand, brings cooler sea surface temperatures and can result in more frequent and intense hurricanes, as well as drought conditions in some areas. Overall, both phenomena can disrupt food production, water resources, and natural disasters.
What is a unexpected warm water during a El Nino?
During El Niño, warm ocean water that is typically located in the western Pacific shifts eastward towards the central and eastern Pacific. This can lead to increased sea surface temperatures in these regions, which can influence weather patterns and climate around the world.
Does El Nino or La Nino increase the length of the day?
Neither El Niño nor La Niña affects the length of the day. These climate phenomena are caused by changes in ocean temperatures in the Pacific Ocean, which do not impact the Earth's rotation. The length of a day is determined by the Earth's rotation on its axis.
How might El Nino affect the amount of fish at a California supermarket?
El Niño can disrupt ocean currents and temperatures, affecting marine ecosystems. This can lead to changes in fish populations, such as a decrease in certain species due to migration patterns or disrupted food sources. These changes can impact the availability and variety of fish at a California supermarket.
Why are the waters in the south American eastern pacific warmer during El Nino?
During El Niño, the trade winds weaken, causing warm water from the western Pacific to flow eastward towards South America. This influx of warm water leads to higher sea surface temperatures in the eastern Pacific Ocean, which can disrupt weather patterns and impact marine life in the region.
During El Niño, sea surface temperatures along the South American coast are warmer than usual, and the Pacific trade winds weaken or even reverse their typical direction. This deviation from normal conditions is a key indicator of an El Niño event.
What type of wave does El Nino usually start with?
El Niño usually starts with a weakening or reversal of the trade winds in the tropical Pacific Ocean, which can trigger a warming of the sea surface temperatures. This change in wind patterns disrupts the normal ocean-atmosphere interactions in the region, leading to the development of El Niño conditions.
What do people do during la sobremesa?
During la sobremesa, people in Spain typically engage in conversations, enjoy coffee or dessert, and relax after a meal. It is a time to socialize, unwind, and connect with others.
When does mania typically occur?
occurs as a symptom of bipolar disorder (a mood disorder characterized by both manic and depressive episodes). Individuals experiencing a manic episode often have feelings of self-importance, elation, talkativeness, sociability
What countries does the la Nina affect?
La Niña typically affects countries around the Pacific Ocean, including Australia, Indonesia, the Philippines, and countries in South America such as Peru and Ecuador. It can bring cooler sea surface temperatures, increased rainfall, and altered weather patterns to these regions.
Does el nino have an affect on sea and land breeze?
El Niño can have an impact on sea and land breezes. During El Niño events, changes in atmospheric circulation patterns can alter wind patterns, potentially affecting the intensity and direction of sea and land breezes. These changes may lead to variations in local weather conditions along coastal areas.
How does la Nina effect cyclone activity?
La Niña typically enhances cyclone activity in the Atlantic basin, leading to an increase in the number of tropical cyclones. This is because La Niña causes lower wind shear and warmer sea surface temperatures, creating more favorable conditions for cyclone formation and intensification. However, the impact of La Niña on cyclone activity can vary depending on other environmental factors.
When El Nino occurs what will happen to the windmill?
During El Niño, wind patterns can be disrupted, leading to less reliable wind conditions for windmills. This can affect the efficiency and output of electricity generated by wind turbines. Additionally, extreme weather events associated with El Niño, such as storms or hurricanes, can also pose risks to windmill infrastructure.
Describe the anterior longitudinal ligament often damaged when whiplash occurs?
The anterior longitudinal ligament (ALL) runs along the front of the vertebral bodies in the spine, connecting and stabilizing them. When whiplash occurs, the rapid back-and-forth motion of the head and neck can strain or tear the ALL. This can lead to pain, stiffness, and instability in the spine.
Which of the following statements about sea surface temperature is evidence of an El Nino year?
greater than normal in the Eastern Pacific
What causes the upwelling to stop?
Upwelling can stop due to changes in wind patterns, such as a shift or weakening of the prevailing winds. Other factors include changes in ocean currents or the presence of surface water that is too warm to allow for cold, nutrient-rich waters to rise.
