Unformatted text preview: sis_monitoring/enso_advisor
y/ensodisc.html • ENSO-neutral is favored into the Northern Hemisphere summer 2013.
• Equatorial Sea Surface Temperatures (SST) are near average across the
• Low-level winds were near average, and upper-level winds were
anomalously westerly across the equatorial Pacific. El Niño AND La Niña
Both an ocean/atmosphere
x Both affect wind, rain, and SST
x Both occur in cycles El Niño VERSUS La Niña
x Both associate with “Southern Oscillation”
x Tradewinds increase
x No reverse flow
Reverse flow of air
Elevated SST in E. Pac x Decreased SST in E. Pac
x Upwelling of cold,
Upwelling of cold,
x Fish thrive
x Dry areas get drier
Dry areas flood
x Wet areas flood
Wet areas dry up Lesson to be Learned
x Earth phenomena are very much
Ocean <----> Atmosphere Bjerknes’ concept of “teleconnections”
x We must understand in order to predict
x Invest in soybean futures after an El Niño!
x – No fish meal for cattle, farmers will use soy We’re dealing with the interplay between two
very different fluids - atmosphere and ocean - in
the boundless dimensions of time and space. ...
Abnormality in one causes abnormality in the
other.... Events such as El Niños have no
definite starting point and no end. It’s a matter of
where you break into the scene, and where you
leave it. Perhaps the only thing more complex is
human behavior itself.
-- Dr. Jerome Namias, Scripps
Institution of Oceanography...
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