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El Niño
Ecology
6
Environmental Studies
Undergraduate 2
03/06/2012

Additional Environmental Studies Flashcards

 


 

Cards

Term
thermocline
Definition
point in the water where the temperature drops considerably as depth increases
Term
pycnocline
Definition
point in the water where the salinity increases considerably as depth increases
Term
normal year
Definition
-west coasts of continents have light, cold, O2 and nutrient rich water and increased productivity
-tradewinds move away from continents
Term
upwelling
Definition
cold water moves up to replace the water lost (ie. Peru)
Term
el niño
Definition
-natural phenomenon
-about an 8 year cycle
-water level becomes high on west coasts and downwelling occurs (ie. in Peru)
Term
impact
Definition
-occurred in 1997/1998
-2100 people died
-$33x10^9 damage
-the first one to be predicted

normal Brazil year crops: 650,000 tons
unpredicted year crops: 100,000 tons
predicted year crops: 530,000 tons
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