stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
El Niño/Southern Oscillation Flashcards | StudBud
Explore
/
El Niño/Southern Oscillation
El Niño/Southern Oscillation
17 terms
·
StudBud Administration
·
415 plays
Imported from external platform
Flashcards
17 cards
F
Practice quiz
P
Host live
L
Questions
17
Answers
1
Prolonged periods of ______ SOI values coincide with abnormally _______ ocean waters across the eastern tropical Pacific
Negative, Cold
Negative, Warm
Positive, Warm
Positive, Cold
2
During El Niño water temperatues can get up to ________ degrees C warmer.
15
8
5
10
3
Which of the following does not occur during La Niña
more upwelling
Stronger trade winds
shallow thermocline in the eastern Pacific
Increased rain in South America
4
Which of the following is not a tool we use to measure past ENSO activity?
Tree Rings
Corals
Ice cores
Continental Sediments
5
Trade winds _________ during El Niño.
Increase
Diminish
6
El Niño causes abundant rain in South America
True
False
7
Prolonged periods of _____ SOI values coincide with abnormally _______ ocean waters across the eastern tropical Pacific
Positive, Warm
Negative, Warm
Positive, Cold
Negative, Cold
8
El Niño causes a warm current on the east coast of _______________ causing decreases in local fisheries.
South America
Australia
California
Africa
9
ENSO normally lasts
6 months
3 years
2 years
12-18 months
10
The _________is based on observed sea level pressure differences between Tahiti and Darwin, Australia
Southern Oscillation Index (SOI)
Saffir Scale
11
All El Niño events are identical
False
True
12
What is the oceanic Niño index?
4.2
2.4
3.4
4.3
13
When does El Niño occur
December/January
April/May
June/July
October/November
14
Which of the following is NOT an impact of El Niño.
Hurricane activity increases
Rainfall increases in South America
Temperature-sensitive corals are decimated
Primary productivity and marine life decrease off Peru
15
La Niña is the ________ phase of ENSO.
Rainy
Cool
Warm
Windy
16
El Niño is the oceanic effect of ENSO while Southern Oscillation is the _______________ effect.
Atmospheric
Geographic
Weather
Economic
17
In neutral conditions, ______________ circulation cells cause upwelling on the eastern pacific coast.
Ferrel
Hadley
Polar
Walker
