The increase or decrease of what makes it warmer or colder. El Nino Southern Oscillation, trade winds weaken & warm surface water moves toward South America. Diminished fisheries off South America, drought in western Pacific, increased precipitation in southwestern North America, fewer Atlantic hurricanes.
How does El Niño affect climate?
El Niño can affect our weather significantly. … El Niño causes the Pacific jet stream to move south and spread further east. During winter, this leads to wetter conditions than usual in the Southern U.S. and warmer and drier conditions in the North. El Niño also has a strong effect on marine life off the Pacific coast.
How do El Niño and La Nina affect climate quizlet?
What are the weather conditions during El Niño? Sea surface temperatures are warmer, which increases evaporation which causes an increase in precipitation. … Ocean water near the equator shifts between warmer than average (el Nino) and colder than average (la Niña) conditions.
How does El Niño affect the climates in the mid Pacific region?
During El Niño, the surface winds across the entire tropical Pacific are weaker than usual. Ocean temperatures in the central and eastern tropical Pacific Ocean are warmer than average, and rainfall is below average over Indonesia and above average over the central or eastern Pacific.
How does El Niño and La Niña affect global climate?
El Niño and La Niña affect not only ocean temperatures, but also how much it rains on land. Depending on which cycle occurs (and when), this can mean either droughts or flooding. Typically, El Niño and its warm waters are associated with drought, while La Niña is linked to increased flooding.
How does La Nina affect the climate of the Pacific Ocean quizlet?
The Eastern Pacific Ocean’s temperature decreases during La Nina. It is still warmer than our ocean but compared to an average year, the water is cooler. … The Atlantic Ocean’s temperature increases during La Nina. It is still cooler than the Eastern Pacific, but compared to an average year, the water is warmer.
How does an El Nino affect weather patterns in Texas quizlet?
Usually, El Nino brings more rain and higher temperatures. … It also affects rainfall, drier than normal conditions will persist in west Texas, New Mexico and Arizona into October.
What causes an El Nino quizlet?
is an abnormal weather pattern that is caused by the warming of the Pacific Ocean near the equator, off the coast of South America.
How does El Niño affect the weather locally?
During an El Niño, the southern part of the U.S. typically experiences wetter than average conditions, while the northern part is less stormy and milder than usual, said NOAA. During a La Niña, it flips, with colder and stormier conditions to the north and warmer, less stormy conditions across the south.
How does El Niño affect geographic location?
During an El Niño event, westward-blowing trade winds weaken along the Equator. These changes in air pressure and wind speed cause warm surface water to move eastward along the Equator, from the western Pacific to the coast of northern South America.
How does El Niño contribute to extreme weather?
By changing the distribution of heat and wind across the Pacific, El Niño alters rainfall patterns for months to seasons. As the warm ocean surface warms the atmosphere above it, moisture-rich air rises and develops into rain clouds.