el nino southern oscillation. oceanic temperatures as a function of enso (figure obtained from ch. 4...
TRANSCRIPT
![Page 1: El Nino Southern Oscillation. Oceanic Temperatures as a Function of ENSO (Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2 nd](https://reader036.vdocuments.us/reader036/viewer/2022070413/5697bfc01a28abf838ca38b9/html5/thumbnails/1.jpg)
El Nino Southern Oscillation
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Oceanic Temperatures as a Function of ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
Warm west, cold east Warm everywhere, but particularly in the
central Pacific
Warming erodes everywhere in
response to upwelling
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Oceanic Temperatures as a Function of ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
![Page 4: El Nino Southern Oscillation. Oceanic Temperatures as a Function of ENSO (Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2 nd](https://reader036.vdocuments.us/reader036/viewer/2022070413/5697bfc01a28abf838ca38b9/html5/thumbnails/4.jpg)
Oceanic Temperatures as a Function of ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
![Page 5: El Nino Southern Oscillation. Oceanic Temperatures as a Function of ENSO (Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2 nd](https://reader036.vdocuments.us/reader036/viewer/2022070413/5697bfc01a28abf838ca38b9/html5/thumbnails/5.jpg)
Oceanic Temperatures as a Function of ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
![Page 6: El Nino Southern Oscillation. Oceanic Temperatures as a Function of ENSO (Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2 nd](https://reader036.vdocuments.us/reader036/viewer/2022070413/5697bfc01a28abf838ca38b9/html5/thumbnails/6.jpg)
Southern Oscillation Index
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
diff
diffdiff
p
ppSOI
)(10
pdiff = p(Tahiti) – p(Darwin)
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Southern Oscillation Index
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
El Nino: Warmer at Tahiti -> Lower SLP -> Negative SOI
La Nina: Cooler at Tahiti -> Higher SLP -> Positive SOI
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ENSO Monitoring Regions
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Walker Circulation During La Nina Events
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
Enhanced heating drives enhanced ascent
Enhanced cooling drives enhanced
descent
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Walker Circulation During El Nino Events
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
Enhanced heating drives enhanced ascent
Weakened cooling drives substantially weakened descent
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El Nino and the Australian Monsoon
(Figure obtained from Ch. 3 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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El Niño and W. Hemisphere Hurricanes
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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NH Winter Impacts of El Niño
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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NH Summer Impacts of El Niño
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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NH Winter Impacts of La Niña
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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NH Summer Impacts of La Niña
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Northern Hemispheric Pattern Modulation by ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Delayed Oscillator Theory
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Delayed Oscillator Theory
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Western Pacific Oscillator Theory
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Dynamical Model Forecasts of ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)
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Statistical Model Forecasts of ENSO
(Figure obtained from Ch. 4 of An Introduction to Tropical Meteorology, 2nd Edition. © 2011, COMET.)