1. Which of the following properties is not an index that scientists use to determine phases of ENSO ? a. Southern Oscillation Index b. Oceanic Niño Index c. Multivariate ENSO Index d. Sea ice coverage in Greenland 2. In an El Niño year, which set of the following conditions would you expect: a. A cooling of Pacific Ocean SSTs near South America and a warming of SSTs to the northeast of Australia b. Warmer than average temperatures over western and central Canada. c. Drier-than-average conditions are likely over portions of the U.S. Gulf Coast and Florida d. A cooling of Pacific Ocean water near South America only 3. In an El Niño year the number of hurricane from North Atlantic Ocean will be a. less than average b. more than average 4. If the Gulf Stream stopped running, how would the climates of North America and Europe be affected? (short answer, describe event in detail) 5. During an El Niño year, the Peruvian Anchovy population will increase. a. true b. false 6. What are different effect of positive and negative phrase of NAO on weather in North America and Europe? (short answer)
ENSO is defined as El nino Southern Oscillation. ENSO is periodic variation in winds and sea surface temperatures over Eastern Pacific Ocean. ENSO is crucial in determining the large scale air movements. El Nino is a warm phase where the Sea surface temperatures are more than the normal. 1. Southern Oscillation Index is one of the important indices measured to determine El Nino and La Nina events. 2. Oceanic Nino Index is another important factor for determining the intensity of ENSO. 3. Multivariate ENSO index determines the atmospheric and oceanic anomalies related ENSO. 4. Sea ice coverage does not determine the ENSO phenomena. Therefore, the correct answer is SEA ICE COVERRAGE IN GREENLAND. As per Chegg guidelines, only the first question is to be answered. Please post the remaining questions separately.