MORE GLOBAL WARMING Flashcards
El Nino
Southern Oscillation (ENSO)
ENSO
(El Nino/Southern Oscillation)
-Irregular, 2-7 year oscillation characterized by higher than average ocean surface temps in the equatorial pacific
Due to El Nino what are PNW winters like?
PNW winters = warmers and drier
El Nino is the opposite of?
La Nina
Warm Phase =
El Nino
Cool Phase =
La Nina
When did Mt Baker have a World Record Winter? How many inches?
1998-1999 Mt Baker had 1,140 inches of snow (94 feet)
PDO stands for what?
Pacific Decadal Oscilliation
- irregular, 20-30 year phase
- only two complete oscillations have been observed
What does the PNW look like in the warm phase?
warmer and drier (cool phase opposite of this)
Annual average temp. rose to what?
The annual average temp rose 1 to 3 F near equal warming in summer and winter
Annual precipitation increased by how much?
Increased by 11% on average
Key Issues? (3)
Freshwater-smaller rain fed systems more flooding
Salmon-young salmon spring too early summer
Forests
