El Nino Essay

688 Words Feb 23rd, 2015 3 Pages
El Niño and La Niña Worksheet

After exploring the websites, you will have enough information to answer the following questions. There are 19 true/false questions and 1 short answer question that need to be answered. Submit your work to your instructor and then complete the El Niño and La Niña Quiz.

The information below explains how to answer the questions.

* If the statement is True, answer True for full credit. * If the statement is False, answer False for half credit and then rewrite the sentence to make it a True statement. To make it True, you will likely only need to swap no more than 2-4 words that describe the main concept to make it true.

Here are a couple of examples.

Example #1: True/False: Most
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Answer:

7. Warm ENSO episodes result in abnormally wet conditions over northern Australia, Indonesia, and the Philippines in both winter and summer seasons.
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8. During a warm ENSO episode, storms tend to be more vigorous in the Gulf of Mexico along the southeast coast of the U.S. resulting in wetter than normal conditions in that region.
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9. During a La Niña episode, higher than normal pressure is observed over Indonesia and northern Australia and lower than normal pressure is observed over the eastern tropical Pacific.
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10. The southeastern U.S. becomes warmer and drier than normal during a cold La Niña episode.
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11. El Nino is closely related to global atmospheric oscillation known as the Northern Oscillation. Answer:

12. La Niña represents the warm phase of the ENSO cycle and El Nino represents the cold phase of the ENSO cycle.
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13. NOAA’s Climate Prediction Center declares the onset of an El Niño episode when the 6-month average sea-surface temperature departure exceeds 2.5 deg Celsius in the east-central equatorial Pacific.
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14. El Niño and La Niña episodes typically occur every 2-7 years. However, in the historical record this interval has varied from 3-5 years.
Answer:

15. El Niño and La Niña are
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