1. Interactions between the Responses of
North American Climate to El Nino/La Nina
and to Secular Warming Trend in the
Indian-Western Pacific Oceans
Gabriel Lau
Geophysical Fluid Dynamics Laboratory/NOAA
Princeton University

2. CORRELATION: SST(FMA) vs NINO INDEX(NDJ)
MODEL
OBSERVATION
(Alexander et al. 2002, J.Clim., Fig.2)
(Alexander et al. 2002, J.Clim., Fig.3)

3. 200 mb Z
JJA(1)
IWP-CLIMO

4. Correlation with Great Plains Precipitation
200 mb Z
Schubert et al. 2004

6. CORRELATION: 200 mb [Z] vs NINO3.4 in Jan(1)

7. SST

9. Fig 1

10. SST Sensitivity Runs Name of Experiment SST Forcing EN El Niño
LN La Niña
T(IWP) 50-yr Trend in Indo-Western Pacific
T(IWP)+EN Sum of IWP Trend and El Niño
T(IWP)+LN Sum of IWP Trend and La Niña
C Climatological

11. Fig 4

12. Fig 5a

13. Fig 5b

14. Fig 6

15. Fig 7a

16. C20C
A1B
Fig 7b

17. C20C
A1B
Fig 7c

18. Fig 8

19. Fig2 a

20. Fig 2b

21. Fig 3

22. Fig 9 (alternate arrangement)

23. The Atmospheric Bridge

24. Experiment Design GFDL R30 14-Layer GCM Total of 16 realizations 1950
SST
Predicted by
Mixed Layer Model
SST
Anomaly
Prescribed
SST
Climatology
Prescribed
1950
1999
Total of 16 realizations
GFDL R30 14-Layer GCM
Prescribed SST in
Deep Tropical Central / Eastern
Pacific
Two-way coupling
with a variable-depth
ocean mixed-layer elsewhere