La Niña Quiz
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Questions and Answers

During a La Niña event, what happens to the patterns of tropical rainfall?

  • They are affected from Alaska to the west coast of Canada
  • They are affected from Australia to the east coast of Africa
  • They are affected from Indonesia to the west coast of South America (correct)
  • They are affected from Japan to the east coast of Australia

    • What is the geographical range of the persistent colder-than-normal sea surface temperature (SST) anomalies during La Niña?

  • 0° to 60°W longitude and 0°N to 10°S latitude
  • 170°W to 120°W longitude and 5°N to 5°S latitude (correct)
  • 30°E to 60°E longitude and 0° to 10°N latitude
  • 90°E to 120°E longitude and 5°S to 5°N latitude

    • What is the characteristic of air pressure over the western Pacific during La Niña?

  • Lower-than-normal air pressure (correct)
  • No significant change in air pressure
  • Higher-than-normal air pressure
  • Fluctuating air pressure

    • What is another name for La Niña?

    <p>An ENSO cold event</p> Signup and view all the answers

    Which phenomena does La Niña belong to?

    <p>El Niño Southern Oscillation (ENSO)</p> Signup and view all the answers

    Study Notes

    La Niña and Tropical Rainfall

    • La Niña alters tropical rainfall patterns, typically resulting in wetter conditions in the western Pacific and drier conditions in the eastern Pacific.
    • Regions like Indonesia and the Philippines often experience increased rainfall during La Niña events.

    Sea Surface Temperature Anomalies

    • Persistent colder-than-normal sea surface temperature (SST) anomalies during La Niña occur in the central and eastern Pacific Ocean.
    • The anomalies can extend as far as the equatorial region, approximately from the dateline to the coast of South America.

    Air Pressure Characteristics

    • High air pressure dominates the western Pacific during La Niña.
    • This pressure pattern contrasts with lower pressure in the eastern Pacific, influencing wind patterns and precipitation distribution.

    Alternative Name for La Niña

    • La Niña is also referred to as the “cold phase” of the El Niño-Southern Oscillation (ENSO).

    Classification

    • La Niña is part of the El Niño-Southern Oscillation (ENSO) climate phenomenon, which includes both El Niño and neutral phases.
    • These phases impact global weather patterns and climate variability significantly.

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    Description

    Test your knowledge of La Niña with this quiz! Learn about the ENSO cold event and its impact on sea surface temperature anomalies. Explore the characteristics of La Niña and its effects on weather patterns.

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