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El Ni ño and the Southern Oscillation (“ENSO”) A quick look

El Ni ño and the Southern Oscillation (“ENSO”) A quick look. “Normal” SST. Walker circulation. p s (hPa). Anomalous p s scaled by s.d.

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El Ni ño and the Southern Oscillation (“ENSO”) A quick look

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  1. El Niño and theSouthern Oscillation(“ENSO”)A quick look

  2. “Normal” SST Walker circulation

  3. ps(hPa)

  4. Anomalous ps scaled by s.d.

  5. Correlations (×10) of fluctuations in annual mean sea level pressure with those at Darwin. The magnitude of the correlation exceeds 0.4 in the shaded regions. (After Trenberth and Shea, 1987.)

  6. “Normal” SST Walker circulation

  7. “Normal” SST

  8. Sea surface temperature anomalies (C) 0 – 10S, 80 – 90W

  9. SST anomalies (Nino 1+2) vs SOI SST SOI

  10. Annual rainfall (in percentiles) in a selection of regions. Black bars coincide with "El Niño" years.

  11. cold warm

  12. cold warm

  13. Correlations (×10) of fluctuations in annual mean sea level pressure with those at Darwin. The magnitude of the correlation exceeds 0.4 in the shaded regions. (After Trenberth and Shea, 1987.)

  14. El Nino impacts in U.S. winter

  15. recent behavior in and over the equatorial Pacific

  16. Current SST anomalies 2011 May 9

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