What is a periodic climate change that causes the waters off the west coast of South America to warm?

What is a periodic warming of Pacific Ocean waters called?

The term El Niño refers to the large-scale ocean-atmosphere climate interaction linked to a periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific.

What are the signs of La Niña?

Watching out for events

  • short-term bursts of tropical rainfall activity.
  • water temperatures at the sea surface and at depth.
  • ocean heat content – measuring the amount of energy stored in the ocean.
  • the Southern Oscillation Index.
  • atmospheric air pressure.
  • cloudiness – measuring the amount of cloud in tropical regions.

What happens to the surface pressure at opposite ends of the Pacific Ocean during the southern oscillation?

What happens to the surface pressure at opposite ends of the Pacific Ocean during the southern oscillation? … This constituent swings in surface air pressure between the tropical eastern ocean waters and the western Pacific Ocean waters.

Is La Niña wet or dry?

“Typically speaking, La Niñas turn out dry for Southern California, and El Niños turn out wet. But not always,” Patzert said. La Niña is the cool phase of a climate phenomenon called the El Niño-Southern Oscillation, often referred to as ENSO.

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