Pattern Correlations/RMS Differences Observations vs. Model(s) v3.LR-AMIP #00 v2.LR-AMIP #00 v1.LR-AMIP #00 v2.LR-HISTORICAL #00 v1.LR-HISTORICAL #00 --------------- --------------- --------------- --------------------- --------------------- PDO (Monthly) 0.97/0.04 0.98/0.04 0.98/0.04 0.57/0.18 0.62/0.16