El Niño (Leaving Cert Geography): Flashcards
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14 cards from this deck
El Niño definition
El Niño definition
Periodic warming of central/eastern Pacific surface waters
El Niño frequency
El Niño frequency
Every 2-7 years
ENSO full form
ENSO full form
El Niño Southern Oscillation
La Niña's relationship to El Niño
La Niña's relationship to El Niño
El Niño's counterpart
Normal trade wind direction in Pacific
Normal trade wind direction in Pacific
East to west along equator
Western Pacific Warm Pool location
Western Pacific Warm Pool location
Near Indonesia and Australia
Trade winds during El Niño
Trade winds during El Niño
Weaken or reverse direction
Warm water movement during El Niño
Warm water movement during El Niño
Spreads eastward towards South America
Effect on Peru/Ecuador during El Niño
Effect on Peru/Ecuador during El Niño
Increased rainfall and flooding
Effect on Australia/SE Asia during El Niño
Effect on Australia/SE Asia during El Niño
Severe drought conditions
Sea temp rise in eastern Pacific during El Niño
Sea temp rise in eastern Pacific during El Niño
2-3°C above normal
Effect of El Niño on marine ecosystems
Effect of El Niño on marine ecosystems
Reduced upwelling affects fish populations
Effect of El Niño on Atlantic hurricanes
Effect of El Niño on Atlantic hurricanes
Suppresses hurricane activity
Effect of El Niño on global temperatures
Effect of El Niño on global temperatures
Tends to be higher overall